Ammar, Aymen; Jeribi, Aref; Saadaoui, Bilel A new decomposition for multivalued \(3\times 3\) matrices. (English) Zbl 07562975 Random Matrices Theory Appl. 11, No. 3, Article ID 2250028, 29 p. (2022). MSC: 47A06 PDF BibTeX XML Cite \textit{A. Ammar} et al., Random Matrices Theory Appl. 11, No. 3, Article ID 2250028, 29 p. (2022; Zbl 07562975) Full Text: DOI OpenURL
Chelly, Slim; Jeribi, Aref; Krichen, Bilel Stability of relative essential spectra of the transport operator in \(L^1\)-space by means of measures of noncompactness and relative weak demicompactness. (English) Zbl 07557942 Monatsh. Math. 198, No. 4, 653-674 (2022). MSC: 47A10 47A13 47A55 47A53 PDF BibTeX XML Cite \textit{S. Chelly} et al., Monatsh. Math. 198, No. 4, 653--674 (2022; Zbl 07557942) Full Text: DOI OpenURL
Abdmouleh, Faiçal; Khlif, Hassen; Walha, Ines Spectral description of Fredholm operators via polynomially Riesz operators perturbation. (English) Zbl 07536921 Georgian Math. J. 29, No. 3, 317-333 (2022). MSC: 47B06 47D03 47A10 47A53 34K08 PDF BibTeX XML Cite \textit{F. Abdmouleh} et al., Georgian Math. J. 29, No. 3, 317--333 (2022; Zbl 07536921) Full Text: DOI OpenURL
He, Ruxia; Wu, Deyu On some essential spectra of off-diagonal block operator matrix with application. (English) Zbl 07535194 Adv. Oper. Theory 7, No. 3, Paper No. 33, 14 p. (2022). MSC: 47A08 47A53 PDF BibTeX XML Cite \textit{R. He} and \textit{D. Wu}, Adv. Oper. Theory 7, No. 3, Paper No. 33, 14 p. (2022; Zbl 07535194) Full Text: DOI OpenURL
Moalla, Nedra; Selmi, Wafa On a characterization of Jeribi, Rakočević, Schechter, Schmoeger and Wolf essential spectra of a \(3 \times 3\) block operator matrices with non diagonal domain and application. (English) Zbl 07533189 Oper. Matrices 16, No. 1, 123-140 (2022). MSC: 47A10 47A53 34K08 PDF BibTeX XML Cite \textit{N. Moalla} and \textit{W. Selmi}, Oper. Matrices 16, No. 1, 123--140 (2022; Zbl 07533189) Full Text: DOI OpenURL
Catană, Viorel; Georgescu, Horia-George Essential spectra and semigroups of perturbations of generalized SG-hypoelliptic pseudo-differential operators on \(L^p \left(\mathbb{R}^n\right)\). (English) Zbl 07530645 J. Pseudo-Differ. Oper. Appl. 13, No. 2, Paper No. 25, 22 p. (2022). MSC: 35S05 35H10 35P05 47D06 47G30 PDF BibTeX XML Cite \textit{V. Catană} and \textit{H.-G. Georgescu}, J. Pseudo-Differ. Oper. Appl. 13, No. 2, Paper No. 25, 22 p. (2022; Zbl 07530645) Full Text: DOI OpenURL
Kitover, Arkady; Orhon, Mehmet Spectrum of weighted composition operators. VII: Essential spectra of weighted composition operators on \(C(K)\). The case of non-invertible homeomorphisms. (English) Zbl 07478452 Indag. Math., New Ser. 33, No. 2, 472-481 (2022). Reviewer: Shamil Makhmutov (Muscat) MSC: 47B33 47A10 PDF BibTeX XML Cite \textit{A. Kitover} and \textit{M. Orhon}, Indag. Math., New Ser. 33, No. 2, 472--481 (2022; Zbl 07478452) Full Text: DOI arXiv OpenURL
Kitover, Arkady; Orhon, Mehmet Spectrum of weighted composition operators. VI: Essential spectra of \(d\)-endomorphisms of Banach \(C(K)\)-modules. (English) Zbl 07437493 Positivity 25, No. 5, 2173-2219 (2021). MSC: 47B33 47B48 47A10 PDF BibTeX XML Cite \textit{A. Kitover} and \textit{M. Orhon}, Positivity 25, No. 5, 2173--2219 (2021; Zbl 07437493) Full Text: DOI arXiv OpenURL
Ben Ali, A.; Boudhief, M.; Moalla, N. Stability of some essential B-spectra of pencil operators and application. (English) Zbl 07434054 Extr. Math. 36, No. 1, 63-80 (2021). MSC: 47A53 47A55 PDF BibTeX XML Cite \textit{A. Ben Ali} et al., Extr. Math. 36, No. 1, 63--80 (2021; Zbl 07434054) Full Text: DOI OpenURL
Ammar, Aymen; Jeribi, Aref; Saadaoui, Bilel Essential S-spectrum for quaternionic quasi-compact operators on right quaternionic Hilbert spaces. (English) Zbl 1481.47116 Acta Appl. Math. 176, Paper No. 1, 14 p. (2021). MSC: 47S05 47A06 47A55 PDF BibTeX XML Cite \textit{A. Ammar} et al., Acta Appl. Math. 176, Paper No. 1, 14 p. (2021; Zbl 1481.47116) Full Text: DOI OpenURL
Bouzidi, Sana; Walha, Ines Left-right essential spectra of one-sided operator matrix and application. (English) Zbl 07361677 Jeribi, Aref (ed.), Operator theory. Proceedings of the international conference on operator theory, Hammamet, Tunisia, April 30 – May 3, 2018. Berlin: De Gruyter. De Gruyter Proc. Math., 157-175 (2021). MSC: 47A10 47A53 34K08 PDF BibTeX XML Cite \textit{S. Bouzidi} and \textit{I. Walha}, in: Operator theory. Proceedings of the international conference on operator theory, Hammamet, Tunisia, April 30 -- May 3, 2018. Berlin: De Gruyter. 157--175 (2021; Zbl 07361677) Full Text: DOI OpenURL
Ferjani, Imen; Jeribi, Aref; Krichen, Bilel Invariance of essential spectrum by means of generalized weak demicompactness. (English) Zbl 07361673 Jeribi, Aref (ed.), Operator theory. Proceedings of the international conference on operator theory, Hammamet, Tunisia, April 30 – May 3, 2018. Berlin: De Gruyter. De Gruyter Proc. Math., 115-120 (2021). MSC: 47A53 47A10 PDF BibTeX XML Cite \textit{I. Ferjani} et al., in: Operator theory. Proceedings of the international conference on operator theory, Hammamet, Tunisia, April 30 -- May 3, 2018. Berlin: De Gruyter. 115--120 (2021; Zbl 07361673) Full Text: DOI OpenURL
Belguith, Marwa; Moalla, Nedra Spectral theory of \(2\times 2\) matrix with entries in a Banach algebra. (English) Zbl 07343255 Rend. Circ. Mat. Palermo (2) 70, No. 1, 121-135 (2021). MSC: 47A10 47A53 46H99 58B15 58J20 PDF BibTeX XML Cite \textit{M. Belguith} and \textit{N. Moalla}, Rend. Circ. Mat. Palermo (2) 70, No. 1, 121--135 (2021; Zbl 07343255) Full Text: DOI OpenURL
Ammar, Aymen; Jeribi, Aref; Saadaoui, Bilel Some decomposition for multivalued matrix pencils linear operator. (English) Zbl 07342800 Bol. Soc. Mat. Mex., III. Ser. 27, No. 1, Paper No. 17, 23 p. (2021). MSC: 47A06 PDF BibTeX XML Cite \textit{A. Ammar} et al., Bol. Soc. Mat. Mex., III. Ser. 27, No. 1, Paper No. 17, 23 p. (2021; Zbl 07342800) Full Text: DOI OpenURL
Abdelmoumen, Boulbeba; Yengui, Sonia Perturbation theory, \(M\)-essential spectra of operator matrices. (English) Zbl 07539766 Filomat 34, No. 4, 1187-1196 (2020). MSC: 47A08 47A55 47A10 47A53 PDF BibTeX XML Cite \textit{B. Abdelmoumen} and \textit{S. Yengui}, Filomat 34, No. 4, 1187--1196 (2020; Zbl 07539766) Full Text: DOI OpenURL
Ivković, Stefan On upper triangular operator \(2 \times 2\) matrices over \(C^\ast\)-algebras. (English) Zbl 07539194 Filomat 34, No. 3, 691-706 (2020). MSC: 47A08 46L08 47A53 PDF BibTeX XML Cite \textit{S. Ivković}, Filomat 34, No. 3, 691--706 (2020; Zbl 07539194) Full Text: DOI OpenURL
Ammar, Aymen; Jeribi, Aref; Mahfoudhi, Kamel Some description of essential structured approximate and defect pseudospectrum. (English) Zbl 07312274 Korean J. Math. 28, No. 4, 673-697 (2020). MSC: 47A53 47A55 54B35 47A13 PDF BibTeX XML Cite \textit{A. Ammar} et al., Korean J. Math. 28, No. 4, 673--697 (2020; Zbl 07312274) Full Text: DOI OpenURL
Belabbaci, C. Spectral radius of S-essential spectra. (English) Zbl 07286281 Mat. Stud. 54, No. 1, 91-97 (2020). MSC: 47A10 47A13 47A53 47H08 PDF BibTeX XML Cite \textit{C. Belabbaci}, Mat. Stud. 54, No. 1, 91--97 (2020; Zbl 07286281) Full Text: DOI OpenURL
Kitover, Arkady; Orhon, Mehmet Spectrum of weighted composition operators. V: Spectrum and essential spectra of weighted rotation-like operators. (English) Zbl 07239384 Positivity 24, No. 4, 973-1015 (2020). Reviewer: Pham Viet Hai (Hanoi) MSC: 47B33 47B48 47B01 47A10 PDF BibTeX XML Cite \textit{A. Kitover} and \textit{M. Orhon}, Positivity 24, No. 4, 973--1015 (2020; Zbl 07239384) Full Text: DOI arXiv OpenURL
Galindo, Pablo; Lindström, Mikael; Wikman, Niklas Spectra of weighted composition operators on analytic function spaces. (English) Zbl 07167246 Mediterr. J. Math. 17, No. 1, Paper No. 34, 22 p. (2020). Reviewer: Abebaw Tadesse (Langston) MSC: 47B33 47B38 PDF BibTeX XML Cite \textit{P. Galindo} et al., Mediterr. J. Math. 17, No. 1, Paper No. 34, 22 p. (2020; Zbl 07167246) Full Text: DOI OpenURL
Brahim, Fatma Ben; Jeribi, Aref; Krichen, Bilel Spectral theory for polynomially demicompact operators. (English) Zbl 07535113 Filomat 33, No. 7, 2017-2030 (2019). MSC: 47A53 47A55 47A10 PDF BibTeX XML Cite \textit{F. B. Brahim} et al., Filomat 33, No. 7, 2017--2030 (2019; Zbl 07535113) Full Text: DOI OpenURL
Karmouni, M.; Tajmouati, A.; El Bakkali, A. Upper triangular operator matrices and limit points of the essential spectrum. (English) Zbl 07216103 Proyecciones 38, No. 3, 401-409 (2019). MSC: 47A10 47A11 PDF BibTeX XML Cite \textit{M. Karmouni} et al., Proyecciones 38, No. 3, 401--409 (2019; Zbl 07216103) Full Text: DOI OpenURL
Khaldi, Nassima; Messirdi, Bekkai Stability of essential spectra of closed operators under \(T\)-compact equivalence. (English) Zbl 1438.47025 Bull. Transilv. Univ. Brașov, Ser. III, Math. Inform. Phys. 12(61), No. 1, 53-64 (2019). MSC: 47A53 47A55 47N50 PDF BibTeX XML Cite \textit{N. Khaldi} and \textit{B. Messirdi}, Bull. Transilv. Univ. Brașov, Ser. III, Math. Inform. Phys. 12(61), No. 1, 53--64 (2019; Zbl 1438.47025) Full Text: DOI OpenURL
Ershov, Yu. L.; Schwidefsky, M. V. To the spectral theory of partially ordered sets. (English. Russian original) Zbl 1481.06008 Sib. Math. J. 60, No. 3, 450-463 (2019); translation from Sib. Mat. Zh. 60, No. 3, 578-598 (2019). MSC: 06A07 06B30 54B35 PDF BibTeX XML Cite \textit{Yu. L. Ershov} and \textit{M. V. Schwidefsky}, Sib. Math. J. 60, No. 3, 450--463 (2019; Zbl 1481.06008); translation from Sib. Mat. Zh. 60, No. 3, 578--598 (2019) Full Text: DOI OpenURL
Belghith, Marwa; Moalla, Nedra; Walha, Ines On the essential spectra of unbounded operator matrices with non diagonal domain and an application. (English) Zbl 1448.47009 Oper. Matrices 13, No. 1, 231-251 (2019). MSC: 47A08 47A53 34K08 PDF BibTeX XML Cite \textit{M. Belghith} et al., Oper. Matrices 13, No. 1, 231--251 (2019; Zbl 1448.47009) Full Text: DOI OpenURL
Jeribi, Aref; Krichen, Bilel; Zitouni, Ali Spectral properties for \(\gamma \)-diagonally dominant operator matrices using demicompactness classes and applications. (English) Zbl 07092250 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 113, No. 3, 2391-2406 (2019). MSC: 47A55 47A53 47H08 PDF BibTeX XML Cite \textit{A. Jeribi} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 113, No. 3, 2391--2406 (2019; Zbl 07092250) Full Text: DOI OpenURL
Gül, Uǧur; Koca, Beyaz Başak Fredholm criteria in a \(C^{\ast}\)-algebra acting on the Hardy space of the bi-disc with applications to composition operators. (English) Zbl 07087187 J. Math. Anal. Appl. 477, No. 1, 163-173 (2019). MSC: 47-XX 30-XX PDF BibTeX XML Cite \textit{U. Gül} and \textit{B. B. Koca}, J. Math. Anal. Appl. 477, No. 1, 163--173 (2019; Zbl 07087187) Full Text: DOI OpenURL
Nazarov, S. A. Asymptotics of the eigenvalues and eigenfunctions of a thin square Dirichlet lattice with a curved ligament. (English. Russian original) Zbl 1419.35144 Math. Notes 105, No. 4, 559-579 (2019); translation from Mat. Zametki 105, No. 4, 564-588 (2019). Reviewer: Michael Perelmuter (Kyïv) MSC: 35P20 35J25 78A50 81Q37 PDF BibTeX XML Cite \textit{S. A. Nazarov}, Math. Notes 105, No. 4, 559--579 (2019; Zbl 1419.35144); translation from Mat. Zametki 105, No. 4, 564--588 (2019) Full Text: DOI OpenURL
Li, Yudan; Wu, Deyu; Alatancang The essential spectra of infinite dimensional Hamilton operator. (Chinese. English summary) Zbl 1424.47014 Acta Math. Sci., Ser. A, Chin. Ed. 38, No. 3, 476-483 (2018). MSC: 47A10 47A53 47A55 PDF BibTeX XML Cite \textit{Y. Li} et al., Acta Math. Sci., Ser. A, Chin. Ed. 38, No. 3, 476--483 (2018; Zbl 1424.47014) OpenURL
Berkani, Mohamed; Boudhief, Monia; Moalla, Nedra Stability of essential B-spectra of unbounded linear operators and applications. (English) Zbl 1413.47012 Afr. Mat. 29, No. 7-8, 1189-1202 (2018). MSC: 47A10 47A53 PDF BibTeX XML Cite \textit{M. Berkani} et al., Afr. Mat. 29, No. 7--8, 1189--1202 (2018; Zbl 1413.47012) Full Text: DOI OpenURL
Ben Brahim, Fatma Ben; Jeribi, Aref; Krichen, Bilel Spectral properties for polynomial and matrix operators involving demicompactness classes. (English) Zbl 06999814 Extr. Math. 33, No. 1, 11-32 (2018). MSC: 47A53 47A55 47A10 PDF BibTeX XML Cite \textit{F. B. Ben Brahim} et al., Extr. Math. 33, No. 1, 11--32 (2018; Zbl 06999814) OpenURL
Gül, Uğur; Koca, Beyaz Başak An invertibility criterion in a C*-algebra acting on the Hardy space with applications to composition operators. (English) Zbl 06997099 Mediterr. J. Math. 15, No. 6, Paper No. 220, 11 p. (2018). MSC: 47B33 PDF BibTeX XML Cite \textit{U. Gül} and \textit{B. B. Koca}, Mediterr. J. Math. 15, No. 6, Paper No. 220, 11 p. (2018; Zbl 06997099) Full Text: DOI arXiv OpenURL
Brahim, Fatma Ben; Jeribi, Aref; Krichen, Bilel Polynomially demicompact operators and spectral theory for operator matrices involving demicompactness classes. (English) Zbl 06982147 Bull. Korean Math. Soc. 55, No. 5, 1351-1370 (2018). MSC: 47A53 47A55 47A10 PDF BibTeX XML Cite \textit{F. B. Brahim} et al., Bull. Korean Math. Soc. 55, No. 5, 1351--1370 (2018; Zbl 06982147) Full Text: Link OpenURL
Cao, Zelong; Liu, Junlin; He, Li Multipliers on the Dirichlet space for the annulus. (English) Zbl 1413.42016 J. Math. Res. Appl. 38, No. 2, 169-182 (2018). MSC: 42B15 42B35 47A10 PDF BibTeX XML Cite \textit{Z. Cao} et al., J. Math. Res. Appl. 38, No. 2, 169--182 (2018; Zbl 1413.42016) Full Text: DOI OpenURL
Galindo, Pablo; Lindström, Mikael Spectra of some weighted composition operators on dual Banach spaces of analytic functions. (English) Zbl 06909741 Integral Equations Oper. Theory 90, No. 3, Paper No. 31, 12 p. (2018). MSC: 47B33 47B38 PDF BibTeX XML Cite \textit{P. Galindo} and \textit{M. Lindström}, Integral Equations Oper. Theory 90, No. 3, Paper No. 31, 12 p. (2018; Zbl 06909741) Full Text: DOI OpenURL
Beyn, W.-J.; Otten, D.; Rottmann-Matthes, Jens Computation and stability of traveling waves in second order evolution equations. (English) Zbl 1458.65157 SIAM J. Numer. Anal. 56, No. 3, 1786-1817 (2018). MSC: 65P40 35L52 35B35 35P30 47A25 PDF BibTeX XML Cite \textit{W. J. Beyn} et al., SIAM J. Numer. Anal. 56, No. 3, 1786--1817 (2018; Zbl 1458.65157) Full Text: DOI arXiv OpenURL
Ammar, Aymen Some results on semi-Fredholm perturbations of multivalued linear operators. (English) Zbl 06868859 Linear Multilinear Algebra 66, No. 7, 1311-1332 (2018). MSC: 47A06 PDF BibTeX XML Cite \textit{A. Ammar}, Linear Multilinear Algebra 66, No. 7, 1311--1332 (2018; Zbl 06868859) Full Text: DOI OpenURL
Gül, Uğur Quasi-parabolic composition operators on weighted Bergman spaces. (English) Zbl 06838034 Complex Anal. Oper. Theory 12, No. 1, 55-79 (2018). MSC: 47B33 PDF BibTeX XML Cite \textit{U. Gül}, Complex Anal. Oper. Theory 12, No. 1, 55--79 (2018; Zbl 06838034) Full Text: DOI arXiv OpenURL
Belabbaci, Chafika Jeribi essential spectrum. (English) Zbl 1475.47003 Lib. Math. (N.S.) 37, No. 1, 65-73 (2017). MSC: 47A10 47A53 47H08 PDF BibTeX XML Cite \textit{C. Belabbaci}, Lib. Math. (N.S.) 37, No. 1, 65--73 (2017; Zbl 1475.47003) Full Text: Link OpenURL
Rabinovich, V. S. Essential spectrum of Schrödinger operators with \(\delta\)-interactions on unbounded hypersurfaces. (English. Russian original) Zbl 1381.35152 Math. Notes 102, No. 5, 698-709 (2017); translation from Mat. Zametki 102, No. 5, 761-773 (2017). MSC: 35Q41 35J10 47G30 35S05 PDF BibTeX XML Cite \textit{V. S. Rabinovich}, Math. Notes 102, No. 5, 698--709 (2017; Zbl 1381.35152); translation from Mat. Zametki 102, No. 5, 761--773 (2017) Full Text: DOI OpenURL
Belghith, Marwa; Moalla, Nedra; Walha, Ines On the essential spectra of coupled operators matrix and application. (English) Zbl 06836389 Math. Methods Appl. Sci. 40, No. 18, 7218-7230 (2017). MSC: 47A10 47A53 PDF BibTeX XML Cite \textit{M. Belghith} et al., Math. Methods Appl. Sci. 40, No. 18, 7218--7230 (2017; Zbl 06836389) Full Text: DOI OpenURL
Ammar, Aymen; Djaidja, Noui; Jeribi, Aref The essential spectrum of a sequence of linear operators in Banach spaces. (English) Zbl 1463.47016 Int. J. Anal. Appl. 15, No. 1, 1-7 (2017). MSC: 47A10 47B01 PDF BibTeX XML Cite \textit{A. Ammar} et al., Int. J. Anal. Appl. 15, No. 1, 1--7 (2017; Zbl 1463.47016) Full Text: Link OpenURL
Kitover, A. K. Spectrum of weighted composition operators. IV: Spectrum and essential spectra of weighted composition operators in spaces of smooth functions on \([0,1]\). (English) Zbl 1439.47023 Positivity 21, No. 3, 989-1014 (2017). MSC: 47B33 47A10 47B60 46E35 46B70 PDF BibTeX XML Cite \textit{A. K. Kitover}, Positivity 21, No. 3, 989--1014 (2017; Zbl 1439.47023) Full Text: DOI arXiv OpenURL
Ammar, Aymen Some properties of the Wolf and Weyl essential spectra of a sequence of linear operators \(\nu\)-convergent. (English) Zbl 1458.47006 Indag. Math., New Ser. 28, No. 2, 424-435 (2017). MSC: 47A10 47B01 47A58 PDF BibTeX XML Cite \textit{A. Ammar}, Indag. Math., New Ser. 28, No. 2, 424--435 (2017; Zbl 1458.47006) Full Text: DOI OpenURL
Ben Ali, Anouer; Moalla, Nedra Fredholm perturbation theory and some essential spectra in Banach algebra with respect to subalgebra. (English) Zbl 1458.47008 Indag. Math., New Ser. 28, No. 2, 276-286 (2017). MSC: 47A55 47A53 47C05 47A10 PDF BibTeX XML Cite \textit{A. Ben Ali} and \textit{N. Moalla}, Indag. Math., New Ser. 28, No. 2, 276--286 (2017; Zbl 1458.47008) Full Text: DOI OpenURL
Tashpulatov, S. M. The structure of essential spectra and discrete spectrum of four-electron systems in the Hubbard model in a singlet state. (English) Zbl 1372.81183 Lobachevskii J. Math. 38, No. 3, 530-541 (2017); erratum ibid. 38, No. 4, 778 (2017). MSC: 81V70 81Q10 35P05 82D20 82D25 PDF BibTeX XML Cite \textit{S. M. Tashpulatov}, Lobachevskii J. Math. 38, No. 3, 530--541 (2017; Zbl 1372.81183) Full Text: DOI OpenURL
Charfi, Salma; Rahali, Sassia Quasi-compact operator, pseudo-essential spectra and some perturbation results. (English) Zbl 06722464 Indag. Math., New Ser. 28, No. 3, 670-679 (2017). MSC: 47-XX 81-XX PDF BibTeX XML Cite \textit{S. Charfi} and \textit{S. Rahali}, Indag. Math., New Ser. 28, No. 3, 670--679 (2017; Zbl 06722464) Full Text: DOI OpenURL
Živković-Zlatanović, Snežana Č.; Cvetković, Miloš D. Generalized Kato-Riesz decomposition and generalized Drazin-Riesz invertible operators. (English) Zbl 06707968 Linear Multilinear Algebra 65, No. 6, 1171-1193 (2017). MSC: 47A53 47A10 PDF BibTeX XML Cite \textit{S. Č. Živković-Zlatanović} and \textit{M. D. Cvetković}, Linear Multilinear Algebra 65, No. 6, 1171--1193 (2017; Zbl 06707968) Full Text: DOI OpenURL
Ammar, Aymen A characterization of some subsets of essential spectra of a multivalued linear operator. (English) Zbl 1454.47006 Complex Anal. Oper. Theory 11, No. 1, 175-196 (2017). MSC: 47A06 47A10 PDF BibTeX XML Cite \textit{A. Ammar}, Complex Anal. Oper. Theory 11, No. 1, 175--196 (2017; Zbl 1454.47006) Full Text: DOI OpenURL
Kitover, A. K. Spectrum of weighted composition operators. III: Essential spectra of some disjointness preserving operators on Banach lattices. (English) Zbl 1411.47007 de Jeu, Marcel (ed.) et al., Ordered structures and applications. Positivity VII (Zaanen centennial conference), Leiden, the Netherlands, July 22–26, 2013. Basel: Birkhäuser/Springer. Trends Math., 233-261 (2016). MSC: 47B33 47B60 47A10 47A53 PDF BibTeX XML Cite \textit{A. K. Kitover}, in: Ordered structures and applications. Positivity VII (Zaanen centennial conference), Leiden, the Netherlands, July 22--26, 2013. Basel: Birkhäuser/Springer. 233--261 (2016; Zbl 1411.47007) Full Text: DOI arXiv OpenURL
Abdmouleh, Faiçal \(B\)-essential and \(B\)-Weyl spectra of sum of two commuting bounded operators. (English) Zbl 06974449 Indian J. Pure Appl. Math. 47, No. 1, 23-31 (2016). MSC: 47-XX PDF BibTeX XML Cite \textit{F. Abdmouleh}, Indian J. Pure Appl. Math. 47, No. 1, 23--31 (2016; Zbl 06974449) Full Text: DOI OpenURL
Farah, Attaif; Mnif, Maher Spectral mapping theorem for fractional powers of linear relations. (English) Zbl 1373.47003 Complex Anal. Oper. Theory 10, No. 8, 1789-1798 (2016). MSC: 47A06 47A53 47A60 47B65 PDF BibTeX XML Cite \textit{A. Farah} and \textit{M. Mnif}, Complex Anal. Oper. Theory 10, No. 8, 1789--1798 (2016; Zbl 1373.47003) Full Text: DOI OpenURL
Charfi, Salma; Walha, Ines On relative essential spectra of block operator matrices and application. (English) Zbl 1347.47003 Bull. Korean Math. Soc. 53, No. 3, 681-698 (2016). MSC: 47A10 47A53 34K08 PDF BibTeX XML Cite \textit{S. Charfi} and \textit{I. Walha}, Bull. Korean Math. Soc. 53, No. 3, 681--698 (2016; Zbl 1347.47003) Full Text: DOI Link OpenURL
Elleuch, Asrar; Jeribi, Aref On a characterization of the structured Wolf, Schechter and Browder essential pseudospectra. (English) Zbl 1330.47010 Indag. Math., New Ser. 27, No. 1, 212-224 (2016). MSC: 47A10 47A53 47A55 PDF BibTeX XML Cite \textit{A. Elleuch} and \textit{A. Jeribi}, Indag. Math., New Ser. 27, No. 1, 212--224 (2016; Zbl 1330.47010) Full Text: DOI OpenURL
Abdmouleh, Faiçal; Ammar, Aymen; Jeribi, Aref A characterization of the pseudo-Browder essential spectra of linear operators and application to a transport equation. (English) Zbl 07499228 J. Comput. Theor. Transp. 44, No. 3, 141-153 (2015). MSC: 82-XX PDF BibTeX XML Cite \textit{F. Abdmouleh} et al., J. Comput. Theor. Transp. 44, No. 3, 141--153 (2015; Zbl 07499228) Full Text: DOI OpenURL
Ammar, Aymen; Dhahri, Mohammed Zerai; Jeribi, Aref Some properties of the \(M\)-essential spectra of closed linear operator on a Banach space. (English) Zbl 1355.47007 Funct. Anal. Approx. Comput. 7, No. 1, 15-28 (2015). MSC: 47A53 47A55 47A10 PDF BibTeX XML Cite \textit{A. Ammar} et al., Funct. Anal. Approx. Comput. 7, No. 1, 15--28 (2015; Zbl 1355.47007) Full Text: Link OpenURL
Yuan, Dengbin; Wu, Hongxing The essential spectra of a singular transport semigroup in slab geometry. (Chinese. English summary) Zbl 1349.47072 Acta Anal. Funct. Appl. 17, No. 3, 229-236 (2015). MSC: 47D06 47A10 35P05 PDF BibTeX XML Cite \textit{D. Yuan} and \textit{H. Wu}, Acta Anal. Funct. Appl. 17, No. 3, 229--236 (2015; Zbl 1349.47072) OpenURL
Charfi, Salma; Rahali, Sassia On a characterization of the \(S\)-essential spectra of the sum and the product of two operators and application to a transport operator. (English) Zbl 1349.47013 Acta Math. Sci., Ser. B, Engl. Ed. 35, No. 6, 1285-1304 (2015). MSC: 47A53 47A55 47G20 PDF BibTeX XML Cite \textit{S. Charfi} and \textit{S. Rahali}, Acta Math. Sci., Ser. B, Engl. Ed. 35, No. 6, 1285--1304 (2015; Zbl 1349.47013) Full Text: DOI OpenURL
Ammar, Aymen; Dhahri, Mohammed Zerai; Jeribi, Aref Some properties of upper triangular \(3\times 3\)-block matrices of linear relations. (English) Zbl 1330.47005 Boll. Unione Mat. Ital. 8, No. 3, 189-204 (2015). MSC: 47A06 47A53 PDF BibTeX XML Cite \textit{A. Ammar} et al., Boll. Unione Mat. Ital. 8, No. 3, 189--204 (2015; Zbl 1330.47005) Full Text: DOI OpenURL
Muminov, Mukhiddin I.; Rasulov, Tulkin H. On the eigenvalues of a \(2\times 2\) block operator matrix. (English) Zbl 1329.81181 Opusc. Math. 35, No. 3, 371-395 (2015). MSC: 81Q10 35P20 47N50 PDF BibTeX XML Cite \textit{M. I. Muminov} and \textit{T. H. Rasulov}, Opusc. Math. 35, No. 3, 371--395 (2015; Zbl 1329.81181) Full Text: DOI OpenURL
Muminov, M. É.; Rasulov, T. Kh. An eigenvalue multiplicity formula for the Schur complement of a \(3\times3\) block operator matrix. (English. Russian original) Zbl 1323.47010 Sib. Math. J. 56, No. 4, 699-713 (2015); translation from Sib. Mat. Zh. 56, No. 4, 878-895 (2015). MSC: 47A56 81Q10 PDF BibTeX XML Cite \textit{M. É. Muminov} and \textit{T. Kh. Rasulov}, Sib. Math. J. 56, No. 4, 699--713 (2015; Zbl 1323.47010); translation from Sib. Mat. Zh. 56, No. 4, 878--895 (2015) Full Text: DOI OpenURL
Abdmouleh, Faiçal; Àlvarez, Teresa; Ammar, Aymen; Jeribi, Aref Spectral mapping theorem for Rakocević and Schmoeger essential spectra of a multivalued linear operator. (English) Zbl 1354.47003 Mediterr. J. Math. 12, No. 3, 1019-1031 (2015). Reviewer: Dana Simona Bereanu (Bucureşti) MSC: 47A06 47A10 PDF BibTeX XML Cite \textit{F. Abdmouleh} et al., Mediterr. J. Math. 12, No. 3, 1019--1031 (2015; Zbl 1354.47003) Full Text: DOI OpenURL
Abdmouleh, F. Stability of essential spectra of bounded linear operators. (English) Zbl 1341.47015 Bull. Iran. Math. Soc. 40, No. 5, 1057-1066 (2014). MSC: 47A55 47A53 47A10 PDF BibTeX XML Cite \textit{F. Abdmouleh}, Bull. Iran. Math. Soc. 40, No. 5, 1057--1066 (2014; Zbl 1341.47015) Full Text: Link OpenURL
Ammar, Aymen; Boukettaya, Bilel; Jeribi, Aref Stability of the \(S\)-left and \(S\)-right essential spectra of a linear operator. (English) Zbl 1340.47024 Acta Math. Sci., Ser. B, Engl. Ed. 34, No. 6, 1922-1934 (2014). MSC: 47A53 47A55 47A10 PDF BibTeX XML Cite \textit{A. Ammar} et al., Acta Math. Sci., Ser. B, Engl. Ed. 34, No. 6, 1922--1934 (2014; Zbl 1340.47024) Full Text: DOI OpenURL
Yuan, Dengbin; Wang, Shenghua; Cheng, Guofei The essential spectra of transport operators in growing cell population with integral boundary conditions. (Chinese. English summary) Zbl 1324.92013 Acta Anal. Funct. Appl. 16, No. 3, 233-237 (2014). MSC: 92C37 47A10 47G20 47D06 PDF BibTeX XML Cite \textit{D. Yuan} et al., Acta Anal. Funct. Appl. 16, No. 3, 233--237 (2014; Zbl 1324.92013) OpenURL
Hai, Guojun; Alatancang On the \((\alpha, \beta)\)-essential spectrum of upper triangular operator matrices. (Chinese. English summary) Zbl 1324.47028 Acta Math. Sin., Chin. Ser. 57, No. 3, 569-580 (2014). MSC: 47A53 47A10 47A55 PDF BibTeX XML Cite \textit{G. Hai} and \textit{Alatancang}, Acta Math. Sin., Chin. Ser. 57, No. 3, 569--580 (2014; Zbl 1324.47028) OpenURL
Muminov, M. I.; Rasulov, T. H. Infiniteness of the number of eigenvalues embedded in the essential spectrum of a \(2\times2\) operator matrix. (English) Zbl 1312.81073 Eurasian Math. J. 5, No. 2, 60-77 (2014). MSC: 81Q10 35P20 47N50 81Q15 47A10 PDF BibTeX XML Cite \textit{M. I. Muminov} and \textit{T. H. Rasulov}, Eurasian Math. J. 5, No. 2, 60--77 (2014; Zbl 1312.81073) Full Text: MNR OpenURL
Ben Amar, Afif; Jeribi, Aref; Mnif, Maher Some results on Fredholm and semi-Fredholm perturbations. (English) Zbl 1342.47020 Arab. J. Math. 3, No. 3, 313-323 (2014). Reviewer: Cătălin Badea (Villeneuve d’Ascq) MSC: 47A53 47A55 58B15 58J20 PDF BibTeX XML Cite \textit{A. Ben Amar} et al., Arab. J. Math. 3, No. 3, 313--323 (2014; Zbl 1342.47020) Full Text: DOI OpenURL
Molahajloo, S. A characterization of compact SG pseudo-differential operators on \(L^{2}(\mathbb{R}^n)\). (English) Zbl 1304.35794 Math. Model. Nat. Phenom. 9, No. 5, 239-243 (2014). MSC: 35S05 47G30 PDF BibTeX XML Cite \textit{S. Molahajloo}, Math. Model. Nat. Phenom. 9, No. 5, 239--243 (2014; Zbl 1304.35794) Full Text: DOI OpenURL
Jeribi, Aref; Moalla, Nedra; Yengui, Sonia S-essential spectra and application to an example of transport operators. (English) Zbl 1300.47013 Math. Methods Appl. Sci. 37, No. 16, 2341-2353 (2014). MSC: 47A10 47G20 PDF BibTeX XML Cite \textit{A. Jeribi} et al., Math. Methods Appl. Sci. 37, No. 16, 2341--2353 (2014; Zbl 1300.47013) Full Text: DOI OpenURL
Alimohammady, M.; Kalleji, M. K. Spectral theory of a hybrid class of pseudo-differential operators. (English) Zbl 1302.35484 Complex Var. Elliptic Equ. 59, No. 12, 1573-1588 (2014). MSC: 35S05 47G30 47A53 PDF BibTeX XML Cite \textit{M. Alimohammady} and \textit{M. K. Kalleji}, Complex Var. Elliptic Equ. 59, No. 12, 1573--1588 (2014; Zbl 1302.35484) Full Text: DOI OpenURL
Walha, Ines On the M-essential spectra of two-group transport equations. (English) Zbl 06353370 Math. Methods Appl. Sci. 37, No. 14, 2135-2149 (2014). MSC: 47A53 47A55 54B35 PDF BibTeX XML Cite \textit{I. Walha}, Math. Methods Appl. Sci. 37, No. 14, 2135--2149 (2014; Zbl 06353370) Full Text: DOI OpenURL
Wilcox, Diane L. Essential spectra of linear relations. (English) Zbl 1298.47006 Linear Algebra Appl. 462, 110-125 (2014). MSC: 47A06 47A10 47A25 47A53 47A55 PDF BibTeX XML Cite \textit{D. L. Wilcox}, Linear Algebra Appl. 462, 110--125 (2014; Zbl 1298.47006) Full Text: DOI arXiv OpenURL
Albrecht, E.; Miller, T. L. Spectral properties of two classes of averaging operators on the little Bloch space and the analytic Besov spaces. (English) Zbl 1339.47040 Complex Anal. Oper. Theory 8, No. 1, 129-157 (2014). Reviewer: Yuri I. Karlovich (Cuernavaca) MSC: 47B38 46E15 47B40 PDF BibTeX XML Cite \textit{E. Albrecht} and \textit{T. L. Miller}, Complex Anal. Oper. Theory 8, No. 1, 129--157 (2014; Zbl 1339.47040) Full Text: DOI OpenURL
Gül, Uğur Parabolic non-automorphism induced Toeplitz-composition C*-algebras with piece-wise quasi-continuous symbols. (English) Zbl 1327.47026 Complex Anal. Oper. Theory 8, No. 1, 111-127 (2014). Reviewer: Rolf Gohm (Aberystwyth) MSC: 47B35 47L80 47B33 PDF BibTeX XML Cite \textit{U. Gül}, Complex Anal. Oper. Theory 8, No. 1, 111--127 (2014; Zbl 1327.47026) Full Text: DOI arXiv OpenURL
Álvarez, Teresa; Ammar, Aymen; Jeribi, Aref A characterization of some subsets of \(S\)-essential spectra of a multivalued linear operator. (English) Zbl 1318.47005 Colloq. Math. 135, No. 2, 171-186 (2014). Reviewer: Valerii V. Obukhovskij (Voronezh) MSC: 47A06 47A10 47A25 47A53 PDF BibTeX XML Cite \textit{T. Álvarez} et al., Colloq. Math. 135, No. 2, 171--186 (2014; Zbl 1318.47005) Full Text: DOI OpenURL
Álvarez, Teresa; Ammar, Aymen; Jeribi, Aref On the essential spectra of some matrix of linear relations. (English) Zbl 1331.47001 Math. Methods Appl. Sci. 37, No. 5, 620-644 (2014). Reviewer: Maryam Khosravi (Kerman) MSC: 47A06 47A55 47A25 PDF BibTeX XML Cite \textit{T. Álvarez} et al., Math. Methods Appl. Sci. 37, No. 5, 620--644 (2014; Zbl 1331.47001) Full Text: DOI OpenURL
Abdelmoumen, Boulbeba; Baklouti, Hamadi Fredholm perturbations and seminorms related to upper semi-Fredholm perturbations. (English) Zbl 1324.47030 Filomat 27, No. 6, 1147-1155 (2013). MSC: 47A55 47A53 PDF BibTeX XML Cite \textit{B. Abdelmoumen} and \textit{H. Baklouti}, Filomat 27, No. 6, 1147--1155 (2013; Zbl 1324.47030) Full Text: DOI OpenURL
Ammar, Aymen; Jeribi, Aref A characterization of the essential pseudospectra and application to a transport equation. (English) Zbl 1308.47012 Extr. Math. 28, No. 1, 95-112 (2013). Reviewer: Janko Bračič (Ljubljana) MSC: 47A53 47A10 PDF BibTeX XML Cite \textit{A. Ammar} and \textit{A. Jeribi}, Extr. Math. 28, No. 1, 95--112 (2013; Zbl 1308.47012) OpenURL
Elleuch, Souhir; Mnif, Maher Essential approximate point spectra for upper triangular matrix of linear relations. (English) Zbl 1299.47004 Acta Math. Sci., Ser. B, Engl. Ed. 33, No. 4, 1187-1201 (2013). MSC: 47A06 47A10 47A53 47A55 PDF BibTeX XML Cite \textit{S. Elleuch} and \textit{M. Mnif}, Acta Math. Sci., Ser. B, Engl. Ed. 33, No. 4, 1187--1201 (2013; Zbl 1299.47004) Full Text: DOI OpenURL
Abdmouleh, Faiçal; Ammar, Aymen; Jeribi, Aref Stability of the \(\mathbf S\)-essential spectra on a Banach space. (English) Zbl 1324.47025 Math. Slovaca 63, No. 2, 299-320 (2013). MSC: 47A53 47A55 PDF BibTeX XML Cite \textit{F. Abdmouleh} et al., Math. Slovaca 63, No. 2, 299--320 (2013; Zbl 1324.47025) Full Text: DOI OpenURL
Ammar, Aymen; Jeribi, Aref; Moalla, Nedra A note on the spectra of a \(3 \times 3\) operator matrix and application. (English) Zbl 1261.47009 Ann. Funct. Anal. 4, No. 2, 153-170 (2013). MSC: 47A10 47A53 47A55 PDF BibTeX XML Cite \textit{A. Ammar} et al., Ann. Funct. Anal. 4, No. 2, 153--170 (2013; Zbl 1261.47009) Full Text: DOI EMIS OpenURL
Eshkabilov, Yu. Kh. On infinite number of negative eigenvalues of the Friedrichs model. (Russian. English summary) Zbl 1353.47004 Nanosist., Fiz. Khim. Mat. 3, No. 6, 16-24 (2012). MSC: 47A10 PDF BibTeX XML Cite \textit{Yu. Kh. Eshkabilov}, Nanosist., Fiz. Khim. Mat. 3, No. 6, 16--24 (2012; Zbl 1353.47004) OpenURL
Abdelmoumen, Boulbeba; Jeribi, Aref; Mnif, Maher Measure of weak noncompactness, some new properties in Fredholm theory, characterization of the Schechter essential spectrum and application to transport operators. (English) Zbl 1302.47030 Ric. Mat. 61, No. 2, 321-340 (2012). MSC: 47B07 46B50 47A53 54B35 82D75 47H08 PDF BibTeX XML Cite \textit{B. Abdelmoumen} et al., Ric. Mat. 61, No. 2, 321--340 (2012; Zbl 1302.47030) Full Text: DOI OpenURL
Abdelmoumen, Boulbeba; Jeribi, Aref; Mnif, Maher On graph measures in Banach spaces and description of essential spectra of multidimensional transport equation. (English) Zbl 1266.47072 Acta Math. Sci., Ser. B, Engl. Ed. 32, No. 5, 2050-2064 (2012). MSC: 47H08 47A53 47A55 PDF BibTeX XML Cite \textit{B. Abdelmoumen} et al., Acta Math. Sci., Ser. B, Engl. Ed. 32, No. 5, 2050--2064 (2012; Zbl 1266.47072) Full Text: DOI OpenURL
Krejčiřík, David \({\mathcal{PT}}\)-symmetric waveguides and the lack of variational techniques. (English) Zbl 1247.35078 Integral Equations Oper. Theory 73, No. 1, 1-2 (2012). MSC: 35P15 35J05 47B44 81Q12 PDF BibTeX XML Cite \textit{D. Krejčiřík}, Integral Equations Oper. Theory 73, No. 1, 1--2 (2012; Zbl 1247.35078) Full Text: DOI OpenURL
Molahajloo, Shahla A characterization of compact pseudo-differential operators on \(\mathbb S^1\). (English) Zbl 1260.47050 Rodino, Luigi (ed.) et al., Pseudo-differential operators: analysis, applications and computations. Selected papers based on lectures presented at the meeting of the ISAAC Group in Pseudo-Differential Operators (IGPDO), London, UK, July 13–18, 2009. Basel: Birkhäuser (ISBN 978-3-0348-0048-8/hbk; 978-3-0348-0049-5/ebook). Operator Theory: Advances and Applications 213, 25-29 (2011). MSC: 47G30 PDF BibTeX XML Cite \textit{S. Molahajloo}, Oper. Theory: Adv. Appl. 213, 25--29 (2011; Zbl 1260.47050) Full Text: DOI OpenURL
Pirhayati, Mohammad Spectral theory of pseudo-differential operators on \(\mathbb S^{1}\). (English) Zbl 1260.47051 Rodino, Luigi (ed.) et al., Pseudo-differential operators: analysis, applications and computations. Selected papers based on lectures presented at the meeting of the ISAAC Group in Pseudo-Differential Operators (IGPDO), London, UK, July 13–18, 2009. Basel: Birkhäuser (ISBN 978-3-0348-0048-8/hbk; 978-3-0348-0049-5/ebook). Operator Theory: Advances and Applications 213, 15-23 (2011). MSC: 47G30 46E35 PDF BibTeX XML Cite \textit{M. Pirhayati}, Oper. Theory: Adv. Appl. 213, 15--23 (2011; Zbl 1260.47051) Full Text: DOI OpenURL
Yuan, Cheng; Zhou, Ze-Hua Spectra of weighted composition operators on algebras of analytic functions on Banach spaces. (English) Zbl 1245.47014 Czech. Math. J. 61, No. 2, 371-381 (2011). MSC: 47B38 47B33 46E15 32A37 PDF BibTeX XML Cite \textit{C. Yuan} and \textit{Z.-H. Zhou}, Czech. Math. J. 61, No. 2, 371--381 (2011; Zbl 1245.47014) Full Text: DOI EuDML Link OpenURL
Perez, Joe J.; Stollmann, Peter Essential self-adjointness, generalized eigenforms, and spectra for the \(\bar {\partial}\)-Neumann problem on G-manifolds. (English) Zbl 1257.58020 J. Funct. Anal. 261, No. 9, 2717-2740 (2011). Reviewer: Hans-Bert Rademacher (Leipzig) MSC: 58J50 35P15 32W05 PDF BibTeX XML Cite \textit{J. J. Perez} and \textit{P. Stollmann}, J. Funct. Anal. 261, No. 9, 2717--2740 (2011; Zbl 1257.58020) Full Text: DOI arXiv OpenURL
Nazarov, S. A. Localization near the corner point of the principal eigenfunction of the Dirichlet problem in a domain with thin edging. (English. Russian original) Zbl 1221.35257 Sib. Math. J. 52, No. 2, 274-290 (2011); translation from Sib. Mat. Zh. 52, No. 2, 350-370 (2011). Reviewer: Mohan Lal Mehra (Bonn) MSC: 35P05 35B40 35J25 35Q74 74B05 74E10 45C05 PDF BibTeX XML Cite \textit{S. A. Nazarov}, Sib. Math. J. 52, No. 2, 274--290 (2011; Zbl 1221.35257); translation from Sib. Mat. Zh. 52, No. 2, 350--370 (2011) Full Text: DOI OpenURL
Abdmouleh, Faiçal; Jeribi, Aref Gustafson, Weidman, Kato, Wolf, Schechter, Browder, Rakočević and Schmoeger essential spectra of the sum of two bounded operators and application to a transport operator. (English) Zbl 1219.47021 Math. Nachr. 284, No. 2-3, 166-176 (2011). Reviewer: Peter Zabreiko (Minsk) MSC: 47A53 39B42 47N50 82D75 PDF BibTeX XML Cite \textit{F. Abdmouleh} and \textit{A. Jeribi}, Math. Nachr. 284, No. 2--3, 166--176 (2011; Zbl 1219.47021) Full Text: DOI OpenURL
Kim, Insook; Kim, Yoenha; Ko, Eungil; Lee, Ji Eun Inherited properties through the Helton class of an operator. (English) Zbl 1216.47073 Bull. Korean Math. Soc. 48, No. 1, 183-195 (2011). Reviewer: Vladimir S. Pilidi (Rostov-na-Donu) MSC: 47B99 47A10 47B20 PDF BibTeX XML Cite \textit{I. Kim} et al., Bull. Korean Math. Soc. 48, No. 1, 183--195 (2011; Zbl 1216.47073) Full Text: DOI Link OpenURL
Jeribi, Aref; Walha, Ines Gustafson, Weidmann, Kato, Wolf, Schechter and Browder essential spectra of some matrix operator and application to two-group transport equation. (English) Zbl 1217.15013 Math. Nachr. 284, No. 1, 67-86 (2011). Reviewer: Jaspal Singh Aujla (Jalandhar) MSC: 15A18 47A10 47A53 PDF BibTeX XML Cite \textit{A. Jeribi} and \textit{I. Walha}, Math. Nachr. 284, No. 1, 67--86 (2011; Zbl 1217.15013) Full Text: DOI OpenURL
Amar, Afif Ben; Jeribi, Aref; Krichen, Bilel Essential spectra of a \(3 \times 3\) operator matrix and an application to three-group transport equations. (English) Zbl 1198.47004 Integral Equations Oper. Theory 68, No. 1, 1-21 (2010). MSC: 47A05 47A55 47A53 47A10 PDF BibTeX XML Cite \textit{A. B. Amar} et al., Integral Equations Oper. Theory 68, No. 1, 1--21 (2010; Zbl 1198.47004) Full Text: DOI OpenURL
Yuan, Cheng; Zhou, Ze-Hua The essential norm and spectrum of a weighted composition operator on \(H^{\infty }(B_{N})\). (English) Zbl 1236.47021 Bull. Malays. Math. Sci. Soc. (2) 33, No. 3, 499-511 (2010). MSC: 47B33 46E15 32A37 PDF BibTeX XML Cite \textit{C. Yuan} and \textit{Z.-H. Zhou}, Bull. Malays. Math. Sci. Soc. (2) 33, No. 3, 499--511 (2010; Zbl 1236.47021) Full Text: Link OpenURL
Alekhno, Egor A. The lower Weyl spectrum of a positive operator. (English) Zbl 1215.47033 Integral Equations Oper. Theory 67, No. 3, 301-326 (2010). Reviewer: Şafak Alpay (Ankara) MSC: 47B65 47A10 47A11 47A58 46B42 47B37 47B07 PDF BibTeX XML Cite \textit{E. A. Alekhno}, Integral Equations Oper. Theory 67, No. 3, 301--326 (2010; Zbl 1215.47033) Full Text: DOI Link OpenURL
Charfi, Salma; Jeribi, Aref; Walha, Ines Essential spectra, matrix operator and applications. (English) Zbl 1209.47006 Acta Appl. Math. 111, No. 3, 319-337 (2010). Reviewer: R. S. Ismagilov (Moscow) MSC: 47A10 47A53 47N20 35P05 PDF BibTeX XML Cite \textit{S. Charfi} et al., Acta Appl. Math. 111, No. 3, 319--337 (2010; Zbl 1209.47006) Full Text: DOI OpenURL
Abdmouleh, Faiçal; Jeribi, Aref Symmetric family of Fredholm operators of indices zero, stability of essential spectra and application to transport operators. (English) Zbl 1181.47011 J. Math. Anal. Appl. 364, No. 2, 414-423 (2010). MSC: 47A53 47A10 82D75 PDF BibTeX XML Cite \textit{F. Abdmouleh} and \textit{A. Jeribi}, J. Math. Anal. Appl. 364, No. 2, 414--423 (2010; Zbl 1181.47011) Full Text: DOI OpenURL
Nazarov, S. A. The essential spectrum of boundary value problems for systems of differential equations in a bounded domain with a cusp. (English. Russian original) Zbl 1271.35055 Funct. Anal. Appl. 43, No. 1, 44-54 (2009); translation from Funkts. Anal. Prilozh. 43, No. 1, 55-67 (2009). MSC: 35P05 PDF BibTeX XML Cite \textit{S. A. Nazarov}, Funct. Anal. Appl. 43, No. 1, 44--54 (2009; Zbl 1271.35055); translation from Funkts. Anal. Prilozh. 43, No. 1, 55--67 (2009) Full Text: DOI OpenURL