Gül, Erdal; Gill, Tepper L. Regularized trace for operators on a separable Banach space. (English) Zbl 07547002 Mediterr. J. Math. 19, No. 4, Paper No. 156, 15 p. (2022). MSC: 47A10 47B38 34L05 PDF BibTeX XML Cite \textit{E. Gül} and \textit{T. L. Gill}, Mediterr. J. Math. 19, No. 4, Paper No. 156, 15 p. (2022; Zbl 07547002) Full Text: DOI OpenURL
Benhellal, Badreddine Spectral properties of the Dirac operator coupled with \(\delta\)-shell interactions. (English) Zbl 07544189 Lett. Math. Phys. 112, No. 3, Paper No. 52, 52 p. (2022). MSC: 81Q10 81V05 35P15 58C40 PDF BibTeX XML Cite \textit{B. Benhellal}, Lett. Math. Phys. 112, No. 3, Paper No. 52, 52 p. (2022; Zbl 07544189) Full Text: DOI OpenURL
Bush, Michael; Liaw, Constanze; Martin, Robert T. W. Spectral measures for derivative powers via matrix-valued Clark theory. (English) Zbl 07540693 J. Math. Anal. Appl. 514, No. 1, Article ID 126275, 36 p. (2022). MSC: 47Axx 47Bxx 34Bxx PDF BibTeX XML Cite \textit{M. Bush} et al., J. Math. Anal. Appl. 514, No. 1, Article ID 126275, 36 p. (2022; Zbl 07540693) Full Text: DOI OpenURL
Leibsle, Fred M.; Rhee, Noah; Bani-Yaghoub, Majid A matrix-eigenvalue method to compute Sturm-Liouville polynomials. (English) Zbl 07534644 Missouri J. Math. Sci. 34, No. 1, 19-29 (2022). MSC: 65F15 34B24 PDF BibTeX XML Cite \textit{F. M. Leibsle} et al., Missouri J. Math. Sci. 34, No. 1, 19--29 (2022; Zbl 07534644) Full Text: DOI OpenURL
Caruso, Noe; Michelangeli, Alessandro Convergence of the conjugate gradient method with unbounded operators. (English) Zbl 07533182 Oper. Matrices 16, No. 1, 35-68 (2022). MSC: 33C47 41A65 46N40 47B25 47N40 PDF BibTeX XML Cite \textit{N. Caruso} and \textit{A. Michelangeli}, Oper. Matrices 16, No. 1, 35--68 (2022; Zbl 07533182) Full Text: DOI OpenURL
Nasiri, Leila; Zardadi, Akram; Moradi, Hamid Reza Refining and reversing Jensen’s inequality. (English) Zbl 07533180 Oper. Matrices 16, No. 1, 19-27 (2022). MSC: 47A63 46L05 47A60 26D15 PDF BibTeX XML Cite \textit{L. Nasiri} et al., Oper. Matrices 16, No. 1, 19--27 (2022; Zbl 07533180) Full Text: DOI OpenURL
Howard, Peter; Sukhtayev, Alim Renormalized oscillation theory for singular linear Hamiltonian systems. (English) Zbl 07528106 J. Funct. Anal. 283, No. 3, Article ID 109525, 74 p. (2022). MSC: 37-XX 81-XX PDF BibTeX XML Cite \textit{P. Howard} and \textit{A. Sukhtayev}, J. Funct. Anal. 283, No. 3, Article ID 109525, 74 p. (2022; Zbl 07528106) Full Text: DOI OpenURL
Sun, Shaoxing; Qi, Xiaofei Higher dimensional numerical range of Lie products on self-adjoint operators. (English) Zbl 07525103 Banach J. Math. Anal. 16, No. 2, Paper No. 27, 18 p. (2022). MSC: 47B49 47A12 PDF BibTeX XML Cite \textit{S. Sun} and \textit{X. Qi}, Banach J. Math. Anal. 16, No. 2, Paper No. 27, 18 p. (2022; Zbl 07525103) Full Text: DOI OpenURL
Alpay, Safak; Emelyanov, Eduard; Gorokhova, Svetlana \(o\tau \)-continuous, Lebesgue, KB, and Levi operators between vector lattices and topological vector spaces. (English) Zbl 07517404 Result. Math. 77, No. 3, Paper No. 117, 25 p. (2022). MSC: 47B60 46A40 46B42 47L05 PDF BibTeX XML Cite \textit{S. Alpay} et al., Result. Math. 77, No. 3, Paper No. 117, 25 p. (2022; Zbl 07517404) Full Text: DOI OpenURL
Gupur, Geni On the asymptotic expression of the time-dependent solution of an M/G/1 queueing model. (English) Zbl 07512035 SN Partial Differ. Equ. Appl. 3, No. 2, Paper No. 21, 16 p. (2022). MSC: 35C20 35L50 47A10 47D03 60K25 PDF BibTeX XML Cite \textit{G. Gupur}, SN Partial Differ. Equ. Appl. 3, No. 2, Paper No. 21, 16 p. (2022; Zbl 07512035) Full Text: DOI OpenURL
Krejčiřík, David; Duc, Tho Nguyen Pseudomodes for non-self-adjoint Dirac operators. (English) Zbl 07505254 J. Funct. Anal. 282, No. 12, Article ID 109440, 53 p. (2022). MSC: 81-XX 35-XX PDF BibTeX XML Cite \textit{D. Krejčiřík} and \textit{T. N. Duc}, J. Funct. Anal. 282, No. 12, Article ID 109440, 53 p. (2022; Zbl 07505254) Full Text: DOI OpenURL
Hida, Haruzo The universal ordinary deformation ring associated to a real quadratic field. (English) Zbl 07501854 Proc. Indian Acad. Sci., Math. Sci. 132, No. 1, Paper No. 17, 51 p. (2022). MSC: 11R23 11F25 11F33 11F80 11F11 11G18 11F27 PDF BibTeX XML Cite \textit{H. Hida}, Proc. Indian Acad. Sci., Math. Sci. 132, No. 1, Paper No. 17, 51 p. (2022; Zbl 07501854) Full Text: DOI OpenURL
Mahmudov, Elimhan N. Optimal control of second order sweeping processes with discrete and differential inclusions. (English) Zbl 1485.49007 J. Convex Anal. 29, No. 1, 269-290 (2022). MSC: 49J15 34A60 34A40 26D10 PDF BibTeX XML Cite \textit{E. N. Mahmudov}, J. Convex Anal. 29, No. 1, 269--290 (2022; Zbl 1485.49007) Full Text: Link OpenURL
Kumar, Rakesh; Hiremath, Kirankumar R. Non-self-adjointness of bent optical waveguide eigenvalue problem. (English) Zbl 07496943 J. Math. Anal. Appl. 512, No. 1, Article ID 126024, 13 p. (2022). MSC: 47Axx 34Lxx 35Pxx PDF BibTeX XML Cite \textit{R. Kumar} and \textit{K. R. Hiremath}, J. Math. Anal. Appl. 512, No. 1, Article ID 126024, 13 p. (2022; Zbl 07496943) Full Text: DOI OpenURL
Bełdziński, Michał; Galewski, Marek; Majdak, Witold On the nonlinear perturbations of self-adjoint operators. (English) Zbl 1485.35227 Adv. Nonlinear Anal. 11, 1117-1133 (2022). MSC: 35J91 35J25 47B25 35A01 PDF BibTeX XML Cite \textit{M. Bełdziński} et al., Adv. Nonlinear Anal. 11, 1117--1133 (2022; Zbl 1485.35227) Full Text: DOI OpenURL
Mengestie, Tesfa Dynamics of weighted composition operators and their adjoints on the Fock space. (English) Zbl 07489686 Complex Anal. Oper. Theory 16, No. 2, Paper No. 27, 12 p. (2022). MSC: 47B32 30H20 46E22 46E20 47B33 PDF BibTeX XML Cite \textit{T. Mengestie}, Complex Anal. Oper. Theory 16, No. 2, Paper No. 27, 12 p. (2022; Zbl 07489686) Full Text: DOI OpenURL
Kottke, Chris; Rochon, Frédéric Low energy limit for the resolvent of some fibered boundary operators. (English) Zbl 07488552 Commun. Math. Phys. 390, No. 1, 231-307 (2022). Reviewer: M. Abdessadek Saib (Tebessa) MSC: 58J40 46E35 47A53 PDF BibTeX XML Cite \textit{C. Kottke} and \textit{F. Rochon}, Commun. Math. Phys. 390, No. 1, 231--307 (2022; Zbl 07488552) Full Text: DOI arXiv OpenURL
Kapustin, V. V. Schrödinger operator with Morse potential and zeros of the Riemann zeta function. (English. Russian original) Zbl 07488508 Math. Notes 111, No. 2, 312-315 (2022); translation from Mat. Zametki 111, No. 2, 304-307 (2022). MSC: 34L40 11Mxx PDF BibTeX XML Cite \textit{V. V. Kapustin}, Math. Notes 111, No. 2, 312--315 (2022; Zbl 07488508); translation from Mat. Zametki 111, No. 2, 304--307 (2022) Full Text: DOI OpenURL
Bögli, Sabine; Kennedy, James B.; Lang, Robin On the eigenvalues of the Robin Laplacian with a complex parameter. (English) Zbl 07474296 Anal. Math. Phys. 12, No. 1, Paper No. 39, 60 p. (2022). Reviewer: Davide Buoso (Alessandria) MSC: 35J05 35J25 35P10 35P15 35S05 47A10 81Q12 PDF BibTeX XML Cite \textit{S. Bögli} et al., Anal. Math. Phys. 12, No. 1, Paper No. 39, 60 p. (2022; Zbl 07474296) Full Text: DOI arXiv OpenURL
Chen, Peng; Duong, Xuan Thinh; Fan, Zhijie; Li, Ji; Yan, Lixin The Schrödinger equation in \(L^p\) spaces for operators with heat kernel satisfying Poisson type bounds. (English) Zbl 1485.42016 J. Math. Soc. Japan 74, No. 1, 285-331 (2022). Reviewer: Felipe Ponce-Vanegas (Bilbao) MSC: 42B15 35Q41 42B37 35J10 PDF BibTeX XML Cite \textit{P. Chen} et al., J. Math. Soc. Japan 74, No. 1, 285--331 (2022; Zbl 1485.42016) Full Text: DOI arXiv OpenURL
Hiai, Fumio; Ueda, Yoshimichi; Wada, Shuhei Pusz-Woronowicz functional calculus and extended operator convex perspectives. (English) Zbl 07462024 Integral Equations Oper. Theory 94, No. 1, Paper No. 1, 66 p. (2022). MSC: 47A60 47A64 47A63 47B65 47A07 PDF BibTeX XML Cite \textit{F. Hiai} et al., Integral Equations Oper. Theory 94, No. 1, Paper No. 1, 66 p. (2022; Zbl 07462024) Full Text: DOI arXiv OpenURL
Feki, Kais; Kittaneh, Fuad Some new refinements of generalized numerical radius inequalities for Hilbert space operators. (English) Zbl 07458058 Mediterr. J. Math. 19, No. 1, Paper No. 17, 16 p. (2022). MSC: 47A12 47B65 47B15 47B20 PDF BibTeX XML Cite \textit{K. Feki} and \textit{F. Kittaneh}, Mediterr. J. Math. 19, No. 1, Paper No. 17, 16 p. (2022; Zbl 07458058) Full Text: DOI OpenURL
Cobzaş, S. Compact bilinear operators on asymmetric normed spaces. (English) Zbl 07453439 Topology Appl. 306, Article ID 107922, 23 p. (2022). Reviewer: Elhadj Dahia (Bou Saâda) MSC: 46G25 47B07 47H60 46B50 54E35 PDF BibTeX XML Cite \textit{S. Cobzaş}, Topology Appl. 306, Article ID 107922, 23 p. (2022; Zbl 07453439) Full Text: DOI arXiv OpenURL
Allahverdiev, Bilender P.; Tuna, Hüseyin One dimensional Dirac operators on time scales. (English) Zbl 07529289 Casp. J. Math. Sci. 10, No. 2, 195-209 (2021). MSC: 34N05 34L10 34L05 PDF BibTeX XML Cite \textit{B. P. Allahverdiev} and \textit{H. Tuna}, Casp. J. Math. Sci. 10, No. 2, 195--209 (2021; Zbl 07529289) Full Text: DOI OpenURL
Allahverdiev, Bilender; Tuna, Hüseyin On extensions of matrix-valued Hahn-Sturm-Liouville operators. (English) Zbl 07527579 Ann. Univ. Mariae Curie-Skłodowska, Sect. A 75, No. 2, 1-12 (2021). MSC: 34B20 34B24 47B25 PDF BibTeX XML Cite \textit{B. Allahverdiev} and \textit{H. Tuna}, Ann. Univ. Mariae Curie-Skłodowska, Sect. A 75, No. 2, 1--12 (2021; Zbl 07527579) Full Text: DOI OpenURL
Karamali, Gholamreza; Moradi, Hamid Reza; Sababheh, Mohammad More about operator order preserving. (English) Zbl 07524096 Rocky Mt. J. Math. 51, No. 5, 1691-1699 (2021). MSC: 47A63 26A51 26B25 26D15 39B62 PDF BibTeX XML Cite \textit{G. Karamali} et al., Rocky Mt. J. Math. 51, No. 5, 1691--1699 (2021; Zbl 07524096) Full Text: DOI Link OpenURL
Tapdigoglu, Ramiz New Berezin symbol inequalities for operators on the reproducing kernel Hilbert space. (English) Zbl 07515565 Oper. Matrices 15, No. 3, 1031-1043 (2021). MSC: 47B35 PDF BibTeX XML Cite \textit{R. Tapdigoglu}, Oper. Matrices 15, No. 3, 1031--1043 (2021; Zbl 07515565) Full Text: DOI OpenURL
Borisov, D. I.; Fedotov, A. A. On the spectrum of a non-self-adjoint quasiperiodic operator. (English. Russian original) Zbl 07503272 Dokl. Math. 104, No. 3, 326-331 (2021); translation from Dokl. Ross. Akad. Nauk, Mat. Inform. Protsessy Upr. 501, 16-21 (2021). MSC: 47Axx PDF BibTeX XML Cite \textit{D. I. Borisov} and \textit{A. A. Fedotov}, Dokl. Math. 104, No. 3, 326--331 (2021; Zbl 07503272); translation from Dokl. Ross. Akad. Nauk, Mat. Inform. Protsessy Upr. 501, 16--21 (2021) Full Text: DOI OpenURL
Pankov, Mark; Petelczyc, Krzysztof; Źynel, Mariusz Automorphisms and some geodesic properties of ortho-Grassmann graphs. (English) Zbl 07503020 Electron. J. Comb. 28, No. 4, Research Paper P4.49, 21 p. (2021). MSC: 05E18 47B15 81P10 PDF BibTeX XML Cite \textit{M. Pankov} et al., Electron. J. Comb. 28, No. 4, Research Paper P4.49, 21 p. (2021; Zbl 07503020) Full Text: DOI OpenURL
Karahan, Döne; Mamedov, Khanlar Rashid On a \(q\)-boundary value problem with discontinuity conditions. (English) Zbl 07501888 Vestn. Yuzhno-Ural. Gos. Univ., Ser. Mat., Mekh., Fiz. 13, No. 4, 5-12 (2021). MSC: 34L10 39A13 47B25 94A20 PDF BibTeX XML Cite \textit{D. Karahan} and \textit{K. R. Mamedov}, Vestn. Yuzhno-Ural. Gos. Univ., Ser. Mat., Mekh., Fiz. 13, No. 4, 5--12 (2021; Zbl 07501888) Full Text: DOI MNR OpenURL
Takaesu, Toshimitsu Construction of solutions of the classical field equation of a massless Klein-Gordon field interacting with a static source. (English) Zbl 07497783 Tokyo J. Math. 44, No. 2, 313-322 (2021). MSC: 81Q10 47B25 81V73 30H20 81Q12 81Q05 47A07 PDF BibTeX XML Cite \textit{T. Takaesu}, Tokyo J. Math. 44, No. 2, 313--322 (2021; Zbl 07497783) Full Text: DOI OpenURL
Allahverdiev, B. P.; Tuna, Hüseyin Spectral analysis of Hahn-Dirac system. (English) Zbl 1485.39007 Proyecciones 40, No. 6, 1547-1567 (2021). MSC: 39A13 39A70 33D15 34B27 34L10 34L40 47A10 PDF BibTeX XML Cite \textit{B. P. Allahverdiev} and \textit{H. Tuna}, Proyecciones 40, No. 6, 1547--1567 (2021; Zbl 1485.39007) Full Text: DOI OpenURL
Patie, Pierre; Savov, Mladen Spectral expansions of non-self-adjoint generalized Laguerre semigroups. (English) Zbl 07492804 Memoirs of the American Mathematical Society 1336. Providence, RI: American Mathematical Society (AMS) (ISBN 978-1-4704-4936-0/pbk; 978-1-4704-6752-4/ebook). v, 182 p. (2021). MSC: 47-02 47D07 33C45 35P05 41A60 60E07 42C15 40E05 30D05 44A20 PDF BibTeX XML Cite \textit{P. Patie} and \textit{M. Savov}, Spectral expansions of non-self-adjoint generalized Laguerre semigroups. Providence, RI: American Mathematical Society (AMS) (2021; Zbl 07492804) Full Text: DOI OpenURL
Taher, Anis Haytham Saleh Fast and accurate calculations of fourth-order non-self-adjoint Sturm-Liouville eigenvalues for problems in physics and engineering. (English) Zbl 1481.65112 Int. J. Appl. Comput. Math. 7, No. 5, Paper No. 212, 20 p. (2021). MSC: 65L15 34B24 34L16 47E05 65L60 PDF BibTeX XML Cite \textit{A. H. S. Taher}, Int. J. Appl. Comput. Math. 7, No. 5, Paper No. 212, 20 p. (2021; Zbl 1481.65112) Full Text: DOI OpenURL
Kadchenko, S. I.; Stavtseva, A. V.; Ryazanova, L. S. Numerical methods for solving spectral problems on quantum graphs. (English) Zbl 07489456 J. Comput. Eng. Math. 8, No. 3, 49-70 (2021). MSC: 65M70 PDF BibTeX XML Cite \textit{S. I. Kadchenko} et al., J. Comput. Eng. Math. 8, No. 3, 49--70 (2021; Zbl 07489456) Full Text: DOI MNR OpenURL
Hatim, Khalid; Baalal, Azeddine Essential spectrum of a weighted geometric realization. (English) Zbl 07487945 Nonlinear Funct. Anal. Appl. 26, No. 4, 701-716 (2021). MSC: 47B25 39A12 47A12 47A45 PDF BibTeX XML Cite \textit{K. Hatim} and \textit{A. Baalal}, Nonlinear Funct. Anal. Appl. 26, No. 4, 701--716 (2021; Zbl 07487945) Full Text: Link OpenURL
Jung, Sungeun Properties of \(J\)-self-adjoint operators. (English) Zbl 07487147 Oper. Matrices 15, No. 2, 627-644 (2021). MSC: 47A11 47A10 47B49 47B32 PDF BibTeX XML Cite \textit{S. Jung}, Oper. Matrices 15, No. 2, 627--644 (2021; Zbl 07487147) Full Text: DOI OpenURL
De Nittis, Giuseppe; Lenz, Vicente Spectral theory of the thermal Hamiltonian: 1D case. (English) Zbl 07483994 J. Spectr. Theory 11, No. 4, 1415-1469 (2021). MSC: 82C70 81T28 81Q05 81Q10 81Q15 PDF BibTeX XML Cite \textit{G. De Nittis} and \textit{V. Lenz}, J. Spectr. Theory 11, No. 4, 1415--1469 (2021; Zbl 07483994) Full Text: DOI arXiv OpenURL
Pizzichillo, Fabio; Van Den Bosch, Hanne Self-adjointness of two-dimensional Dirac operators on corner domains. (English) Zbl 07481661 J. Spectr. Theory 11, No. 3, 1043-1079 (2021). MSC: 81Q10 81R25 81R20 81Q37 47N20 47N50 35G15 47B25 30C20 05C70 46E36 PDF BibTeX XML Cite \textit{F. Pizzichillo} and \textit{H. Van Den Bosch}, J. Spectr. Theory 11, No. 3, 1043--1079 (2021; Zbl 07481661) Full Text: DOI arXiv OpenURL
Ianovich, Eduard Spontaneous decay of level from spectral theory point of view. (English) Zbl 07478495 Opusc. Math. 41, No. 6, 849-859 (2021). Reviewer: Miyeon Kwon (Platteville) MSC: 47A10 81Q10 81T10 PDF BibTeX XML Cite \textit{E. Ianovich}, Opusc. Math. 41, No. 6, 849--859 (2021; Zbl 07478495) Full Text: DOI arXiv OpenURL
Feki, Kais Some numerical radius inequalities for semi-Hilbert space operators. (English) Zbl 07477356 J. Korean Math. Soc. 58, No. 6, 1385-1405 (2021). MSC: 47A12 46C05 47B65 47A05 PDF BibTeX XML Cite \textit{K. Feki}, J. Korean Math. Soc. 58, No. 6, 1385--1405 (2021; Zbl 07477356) Full Text: DOI arXiv OpenURL
Sathyanarayana, Sumukha; Singh, Sujeet Kumar Rankin-Cohen brackets on Hermitian Jacobi forms and the adjoint of some linear maps. (English) Zbl 1483.11095 Funct. Approximatio, Comment. Math. 65, No. 1, 61-72 (2021). MSC: 11F50 11F25 11F66 PDF BibTeX XML Cite \textit{S. Sathyanarayana} and \textit{S. K. Singh}, Funct. Approximatio, Comment. Math. 65, No. 1, 61--72 (2021; Zbl 1483.11095) Full Text: DOI OpenURL
Tourani, Mehdi; Khalili, Yasser Self-adjoint linear maps on \(C^*\)-algebra. (English) Zbl 07468408 Int. J. Math. Oper. Res. 20, No. 3, 323-327 (2021). MSC: 46L05 47B48 PDF BibTeX XML Cite \textit{M. Tourani} and \textit{Y. Khalili}, Int. J. Math. Oper. Res. 20, No. 3, 323--327 (2021; Zbl 07468408) Full Text: DOI OpenURL
Bárcenas, Diómedes; Leal, Bladismir; Leiva, Hugo; Moya, Ambrosio Tineo On the continuity of the adjoint of evolution operators. (English) Zbl 07462242 Quaest. Math. 44, No. 11, 1441-1454 (2021). MSC: 47D06 34G10 47Axx PDF BibTeX XML Cite \textit{D. Bárcenas} et al., Quaest. Math. 44, No. 11, 1441--1454 (2021; Zbl 07462242) Full Text: DOI OpenURL
Frymark, Dale; Liaw, Constanze Perspectives on general left-definite theory. (English) Zbl 07456823 Gesztesy, Fritz (ed.) et al., From operator theory to orthogonal polynomials, combinatorics, and number theory. A volume in honor of Lance Littlejohn’s 70th birthday. Cham: Birkhäuser. Oper. Theory: Adv. Appl. 285, 69-89 (2021). MSC: 47-XX 33-XX PDF BibTeX XML Cite \textit{D. Frymark} and \textit{C. Liaw}, Oper. Theory: Adv. Appl. 285, 69--89 (2021; Zbl 07456823) Full Text: DOI arXiv OpenURL
Ko, Eungil Operators commuting with self-adjoint weighted composition operators on \(H^2\). (English) Zbl 07453473 Complex Var. Elliptic Equ. 66, No. 12, 2076-2089 (2021). MSC: 47B33 47B20 47B91 46E22 30H10 PDF BibTeX XML Cite \textit{E. Ko}, Complex Var. Elliptic Equ. 66, No. 12, 2076--2089 (2021; Zbl 07453473) Full Text: DOI OpenURL
Stepanenko, Alexei Bounds for Schrödinger operators on the half-line perturbed by dissipative barriers. (English) Zbl 07445578 Integral Equations Oper. Theory 93, No. 6, Paper No. 60, 21 p. (2021). Reviewer: Gang Meng (Beijing) MSC: 34L40 34L15 47A55 PDF BibTeX XML Cite \textit{A. Stepanenko}, Integral Equations Oper. Theory 93, No. 6, Paper No. 60, 21 p. (2021; Zbl 07445578) Full Text: DOI arXiv OpenURL
Stempak, Krzysztof Finite reflection groups and symmetric extensions of Laplacian. (English) Zbl 1480.35123 Stud. Math. 261, No. 3, 241-267 (2021). MSC: 35J05 35J25 47B25 PDF BibTeX XML Cite \textit{K. Stempak}, Stud. Math. 261, No. 3, 241--267 (2021; Zbl 1480.35123) Full Text: DOI arXiv OpenURL
Grebenkov, Denis S.; Helffer, Bernard; Moutal, Nicolas On the spectral properties of the Bloch-Torrey equation in infinite periodically perforated domains. (English) Zbl 07438892 Exner, Pavel (ed.) et al., Partial differential equations, spectral theory, and mathematical physics. The Ari Laptev anniversary volume. Berlin: European Mathematical Society (EMS). EMS Ser. Congr. Rep., 177-196 (2021). MSC: 47B28 47B93 PDF BibTeX XML Cite \textit{D. S. Grebenkov} et al., in: Partial differential equations, spectral theory, and mathematical physics. The Ari Laptev anniversary volume. Berlin: European Mathematical Society (EMS). 177--196 (2021; Zbl 07438892) Full Text: DOI arXiv OpenURL
Dolbeault, Jean; Esteban, Maria J.; Loss, Michael Critical magnetic field for 2D magnetic Dirac-Coulomb operators and Hardy inequalities. (English) Zbl 1480.81044 Exner, Pavel (ed.) et al., Partial differential equations, spectral theory, and mathematical physics. The Ari Laptev anniversary volume. Berlin: European Mathematical Society (EMS). EMS Ser. Congr. Rep., 41-63 (2021). MSC: 81Q10 46N50 81Q05 47A75 47B25 PDF BibTeX XML Cite \textit{J. Dolbeault} et al., in: Partial differential equations, spectral theory, and mathematical physics. The Ari Laptev anniversary volume. Berlin: European Mathematical Society (EMS). 41--63 (2021; Zbl 1480.81044) Full Text: DOI arXiv OpenURL
Hosseini, Mohsen Shah; Moradi, Hamid Reza; Moosavi, Baharak Operator Jensen’s type inequalities for convex functions. (English) Zbl 07434873 J. Math. Ext. 15, No. 2, Paper No. 14, 16 p. (2021). MSC: 47A63 26A51 26D15 26B25 39B62 PDF BibTeX XML Cite \textit{M. S. Hosseini} et al., J. Math. Ext. 15, No. 2, Paper No. 14, 16 p. (2021; Zbl 07434873) Full Text: arXiv Link OpenURL
Roman, Marcel; Sandovici, Adrian Essentially self-adjoint linear relations in Hilbert spaces. (English) Zbl 07434709 Period. Math. Hung. 83, No. 2, 122-132 (2021). Reviewer: Valerii V. Obukhovskij (Voronezh) MSC: 47A06 47B25 47B65 PDF BibTeX XML Cite \textit{M. Roman} and \textit{A. Sandovici}, Period. Math. Hung. 83, No. 2, 122--132 (2021; Zbl 07434709) Full Text: DOI OpenURL
Hussein, Amru Hidden symmetries in non-self-adjoint graphs. (English) Zbl 07433747 Commun. Partial Differ. Equations 46, No. 9, 1674-1728 (2021). MSC: 47A10 81Q12 47B44 47D06 PDF BibTeX XML Cite \textit{A. Hussein}, Commun. Partial Differ. Equations 46, No. 9, 1674--1728 (2021; Zbl 07433747) Full Text: DOI arXiv OpenURL
Yang, Kaifan On the positive operator solutions to an operator equation \(X-A^\ast X^{-t}A=Q\). (English) Zbl 07433558 J. Math. 2021, Article ID 7124859, 4 p. (2021). Reviewer: Mohammed Hichem Mortad (Oran) MSC: 47A62 47B65 PDF BibTeX XML Cite \textit{K. Yang}, J. Math. 2021, Article ID 7124859, 4 p. (2021; Zbl 07433558) Full Text: DOI OpenURL
Hou, Jinchuan; Xu, Qingsen Preservers of radial unitary similarity functions on Lie products of self-adjoint operators. (English) Zbl 1481.47048 Linear Multilinear Algebra 69, No. 15, 2779-2805 (2021). MSC: 47B49 47A10 47A25 PDF BibTeX XML Cite \textit{J. Hou} and \textit{Q. Xu}, Linear Multilinear Algebra 69, No. 15, 2779--2805 (2021; Zbl 1481.47048) Full Text: DOI OpenURL
Dubey, Jitendra Kumar; Pandey, Pradeep Kumar; Upadhyay, S. K. Characterization of product of pseudo-differential operators involving fractional Fourier transform. (English) Zbl 07425438 J. Indian Math. Soc., New Ser. 88, No. 1-2, 60-71 (2021). MSC: 35S05 47A53 47G30 PDF BibTeX XML Cite \textit{J. K. Dubey} et al., J. Indian Math. Soc., New Ser. 88, No. 1--2, 60--71 (2021; Zbl 07425438) Full Text: DOI OpenURL
Alhefthi, Reem K.; Siddiqui, Akhlaq A.; Jamjoom, Fatmah B. Quasi Jordan algebras with involution. (English) Zbl 1483.17022 Indian J. Pure Appl. Math. 52, No. 1, 112-124 (2021). Reviewer: Mohd Arif Raza (Rabigh) MSC: 17C50 17A30 17B40 PDF BibTeX XML Cite \textit{R. K. Alhefthi} et al., Indian J. Pure Appl. Math. 52, No. 1, 112--124 (2021; Zbl 1483.17022) Full Text: DOI OpenURL
Yafaev, Dmitri R. Second-order differential operators in the limit circle case. (English) Zbl 07420102 SIGMA, Symmetry Integrability Geom. Methods Appl. 17, Paper 077, 13 p. (2021). MSC: 47E05 47A40 33C45 39A70 47B39 PDF BibTeX XML Cite \textit{D. R. Yafaev}, SIGMA, Symmetry Integrability Geom. Methods Appl. 17, Paper 077, 13 p. (2021; Zbl 07420102) Full Text: DOI arXiv OpenURL
Fernandez, D. L.; Mastyło, M.; Silva, E. B. Pietsch’s variants of \(s\)-numbers for multilinear operators. (English) Zbl 1483.46045 Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 4, Paper No. 189, 24 p. (2021). Reviewer: Christopher Boyd (Dublin) MSC: 46G25 47A07 47B06 PDF BibTeX XML Cite \textit{D. L. Fernandez} et al., Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 115, No. 4, Paper No. 189, 24 p. (2021; Zbl 1483.46045) Full Text: DOI OpenURL
Pablos Romo, Fernando On bounded finite potent operators on arbitrary Hilbert spaces. (English) Zbl 07419035 Bull. Malays. Math. Sci. Soc. (2) 44, No. 6, 4085-4107 (2021). MSC: 47B02 47A15 47B06 46C05 47L30 PDF BibTeX XML Cite \textit{F. Pablos Romo}, Bull. Malays. Math. Sci. Soc. (2) 44, No. 6, 4085--4107 (2021; Zbl 07419035) Full Text: DOI arXiv OpenURL
Bouhrara, Adil; Kabbaj, Samir The spectrum of the non-self-adjoint twisted Laplacian on \(\mathbb{R}^2\). (English) Zbl 07418557 Complex Anal. Oper. Theory 15, No. 7, Paper No. 108, 13 p. (2021). Reviewer: Antonio M. Peralta (Granada) MSC: 47G30 35C05 47F05 35R03 35J94 PDF BibTeX XML Cite \textit{A. Bouhrara} and \textit{S. Kabbaj}, Complex Anal. Oper. Theory 15, No. 7, Paper No. 108, 13 p. (2021; Zbl 07418557) Full Text: DOI OpenURL
Lenz, Daniel; Weinmann, Timon; Wirth, Melchior Self-adjoint extensions of bipartite Hamiltonians. (English) Zbl 07414989 Proc. Edinb. Math. Soc., II. Ser. 64, No. 3, 433-447 (2021). MSC: 47B25 81Q10 46N50 PDF BibTeX XML Cite \textit{D. Lenz} et al., Proc. Edinb. Math. Soc., II. Ser. 64, No. 3, 433--447 (2021; Zbl 07414989) Full Text: DOI arXiv OpenURL
Popov, I. Y.; Blinova, I. V.; Popov, A. I. A model of a boundary composed of the Helmholtz resonators. (English) Zbl 07409848 Complex Var. Elliptic Equ. 66, No. 8, 1256-1263 (2021). MSC: 47B25 35P15 PDF BibTeX XML Cite \textit{I. Y. Popov} et al., Complex Var. Elliptic Equ. 66, No. 8, 1256--1263 (2021; Zbl 07409848) Full Text: DOI OpenURL
Michelangeli, Alessandro Models of zero-range interaction for the bosonic trimer at unitarity. (English) Zbl 07409795 Rev. Math. Phys. 33, No. 4, Article ID 2150010, 101 p. (2021). MSC: 81Q10 45H05 46F10 46N20 46N50 47B25 47F10 47N50 70F07 PDF BibTeX XML Cite \textit{A. Michelangeli}, Rev. Math. Phys. 33, No. 4, Article ID 2150010, 101 p. (2021; Zbl 07409795) Full Text: DOI arXiv OpenURL
Du, Shaohong; Cai, Zhiqiang Adaptive finite element method for Dirichlet boundary control of elliptic partial differential equations. (English) Zbl 1480.65332 J. Sci. Comput. 89, No. 2, Paper No. 36, 25 p. (2021). MSC: 65N30 65N06 65N12 65N15 65J15 PDF BibTeX XML Cite \textit{S. Du} and \textit{Z. Cai}, J. Sci. Comput. 89, No. 2, Paper No. 36, 25 p. (2021; Zbl 1480.65332) Full Text: DOI arXiv OpenURL
Nittis, Giuseppe De; Lenz, Vicente Perturbation theory for the thermal Hamiltonian: 1D case. (English) Zbl 1477.81033 Lett. Math. Phys. 111, No. 4, Paper No. 106, 23 p. (2021). MSC: 81Q10 81Q05 81Q15 33C10 PDF BibTeX XML Cite \textit{G. De Nittis} and \textit{V. Lenz}, Lett. Math. Phys. 111, No. 4, Paper No. 106, 23 p. (2021; Zbl 1477.81033) Full Text: DOI arXiv OpenURL
Sultanova, Vusala Asymptotics of the eigenvalues and eigenfunctions of a non-self-adjoint problem with a spectral parameter in the boundary condition. (English) Zbl 07401984 J. Contemp. Appl. Math. 11, No. 2, 11-36 (2021). MSC: 34L20 34B09 34L10 PDF BibTeX XML Cite \textit{V. Sultanova}, J. Contemp. Appl. Math. 11, No. 2, 11--36 (2021; Zbl 07401984) Full Text: Link OpenURL
Kostenko, Aleksey; Nicolussi, Noema A note on the Gaffney Laplacian on infinite metric graphs. (English) Zbl 1475.35374 J. Funct. Anal. 281, No. 10, Article ID 109216, 20 p. (2021). MSC: 35R02 47B25 81Q10 05C50 PDF BibTeX XML Cite \textit{A. Kostenko} and \textit{N. Nicolussi}, J. Funct. Anal. 281, No. 10, Article ID 109216, 20 p. (2021; Zbl 1475.35374) Full Text: DOI arXiv OpenURL
Miyanishi, Yoshihisa; Rozenblum, Grigori Spectral properties of the Neumann-Poincaré operator in 3D elasticity. (English) Zbl 1473.35100 Int. Math. Res. Not. 2021, No. 11, 8715-8740 (2021). MSC: 35C15 35J57 35P05 47B07 74B05 PDF BibTeX XML Cite \textit{Y. Miyanishi} and \textit{G. Rozenblum}, Int. Math. Res. Not. 2021, No. 11, 8715--8740 (2021; Zbl 1473.35100) Full Text: DOI arXiv OpenURL
Moradi, H. R.; Furuichi, S.; Sababheh, M. On the operator Jensen-Mercer inequality. (English) Zbl 07393044 Bastos, M. Amélia (ed.) et al., Operator theory, functional analysis and applications. Proceedings of the 30th international workshop on operator theory and its applications, IWOTA 2019, Lisbon, Portugal, July 22–26, 2019. Cham: Birkhäuser. Oper. Theory: Adv. Appl. 282, 483-493 (2021). Reviewer: Mohsen Kian (Bojnord) MSC: 47A63 47A64 PDF BibTeX XML Cite \textit{H. R. Moradi} et al., Oper. Theory: Adv. Appl. 282, 483--493 (2021; Zbl 07393044) Full Text: DOI arXiv OpenURL
Mengestie, Tesfa Convex-cyclic weighted composition operators and their adjoints. (English) Zbl 07388012 Mediterr. J. Math. 18, No. 4, Paper No. 172, 11 p. (2021). MSC: 47B32 30H20 46E22 46E20 47B33 PDF BibTeX XML Cite \textit{T. Mengestie}, Mediterr. J. Math. 18, No. 4, Paper No. 172, 11 p. (2021; Zbl 07388012) Full Text: DOI arXiv OpenURL
Doikou, Anastasia; Malham, Simon J. A.; Wiese, Anke Time evolution in quantum systems and stochastics. (English) Zbl 1471.81029 Paranjape, M. B. (ed.) et al., Quantum theory and symmetries. Proceedings of the 11th international symposium, Montréal, Canada, July 1–5, 2019. Cham: Springer. CRM Ser. Math. Phys., 523-532 (2021). MSC: 81Q12 81S40 81S25 35R60 PDF BibTeX XML Cite \textit{A. Doikou} et al., in: Quantum theory and symmetries. Proceedings of the 11th international symposium, Montréal, Canada, July 1--5, 2019. Cham: Springer. 523--532 (2021; Zbl 1471.81029) Full Text: DOI arXiv OpenURL
Roman, Marcel; Sandovici, Adrian Adjoint to each other linear relations. Nieminen type criteria. (English) Zbl 07387028 Monatsh. Math. 196, No. 1, 191-205 (2021). MSC: 47A06 47B25 47B15 PDF BibTeX XML Cite \textit{M. Roman} and \textit{A. Sandovici}, Monatsh. Math. 196, No. 1, 191--205 (2021; Zbl 07387028) Full Text: DOI OpenURL
Khosravian-Arab, Hassan; Eslahchi, Mohammad Reza Müntz Sturm-Liouville problems: theory and numerical experiments. (English) Zbl 07382480 Fract. Calc. Appl. Anal. 24, No. 3, 775-817 (2021). MSC: 26A33 33C45 65M70 34L10 41A55 PDF BibTeX XML Cite \textit{H. Khosravian-Arab} and \textit{M. R. Eslahchi}, Fract. Calc. Appl. Anal. 24, No. 3, 775--817 (2021; Zbl 07382480) Full Text: DOI arXiv OpenURL
Bianchi, Davide Analysis of the spectral symbol associated to discretization schemes of linear self-adjoint differential operators. (English) Zbl 07380433 Calcolo 58, No. 3, Paper No. 38, 47 p. (2021). MSC: 47B35 35P05 65N99 65D25 65F99 PDF BibTeX XML Cite \textit{D. Bianchi}, Calcolo 58, No. 3, Paper No. 38, 47 p. (2021; Zbl 07380433) Full Text: DOI arXiv OpenURL
Dehimi, Souheyb; Mortad, Mohammed Hichem; Tarcsay, Zsigmond On the operator equations \(A^n = A^{\ast}A\). (English) Zbl 07379864 Linear Multilinear Algebra 69, No. 9, 1771-1778 (2021). Reviewer: Elena V. Tabarintseva (Chelyabinsk) MSC: 47A50 39B42 PDF BibTeX XML Cite \textit{S. Dehimi} et al., Linear Multilinear Algebra 69, No. 9, 1771--1778 (2021; Zbl 07379864) Full Text: DOI arXiv OpenURL
Ao, Ji-jun; Sun, Jiong Eigenvalues of a class of fourth-order boundary value problems with transmission conditions using matrix theory. (English) Zbl 1483.34037 Linear Multilinear Algebra 69, No. 9, 1610-1624 (2021). Reviewer: Jonathan Rohleder (Stockholm) MSC: 34B09 34B24 34L15 47B25 15A60 PDF BibTeX XML Cite \textit{J.-j. Ao} and \textit{J. Sun}, Linear Multilinear Algebra 69, No. 9, 1610--1624 (2021; Zbl 1483.34037) Full Text: DOI OpenURL
Cassano, Biagio; Cossetti, Lucrezia; Fanelli, Luca Eigenvalue bounds and spectral stability of Lamé operators with complex potentials. (English) Zbl 1470.35244 J. Differ. Equations 298, 528-559 (2021). MSC: 35P15 35J57 74B05 PDF BibTeX XML Cite \textit{B. Cassano} et al., J. Differ. Equations 298, 528--559 (2021; Zbl 1470.35244) Full Text: DOI arXiv OpenURL
Yang, Chen; Sun, Huaqing Friedrichs extensions of a class of singular Hamiltonian systems. (English) Zbl 07379511 J. Differ. Equations 293, 359-391 (2021). MSC: 47H06 47B25 34B05 PDF BibTeX XML Cite \textit{C. Yang} and \textit{H. Sun}, J. Differ. Equations 293, 359--391 (2021; Zbl 07379511) Full Text: DOI OpenURL
Gül, Erdal A second regularized trace formula for a higher order differential operator. (English) Zbl 07376969 Math. Methods Appl. Sci. 44, No. 6, 5099-5109 (2021). MSC: 47A10 34L20 34L05 PDF BibTeX XML Cite \textit{E. Gül}, Math. Methods Appl. Sci. 44, No. 6, 5099--5109 (2021; Zbl 07376969) Full Text: DOI OpenURL
Charif, Mirna; Zielinski, Lech Perturbation series for Jacobi matrices and the quantum Rabi model. (English) Zbl 1469.81019 Opusc. Math. 41, No. 3, 301-333 (2021). MSC: 81Q10 81Q15 47B36 15A18 81V80 35B34 40A30 PDF BibTeX XML Cite \textit{M. Charif} and \textit{L. Zielinski}, Opusc. Math. 41, No. 3, 301--333 (2021; Zbl 1469.81019) Full Text: DOI OpenURL
Pankov, Mark; Petelczyc, Krzysztof; Żynel, Mariusz Generalized Grassmann graphs associated to conjugacy classes of finite-rank self-adjoint operators. (English) Zbl 1468.05309 Linear Algebra Appl. 627, 1-23 (2021). MSC: 05E18 05C60 47B15 81P10 51A10 15B57 47B49 14M17 PDF BibTeX XML Cite \textit{M. Pankov} et al., Linear Algebra Appl. 627, 1--23 (2021; Zbl 1468.05309) Full Text: DOI arXiv OpenURL
Tumanov, S. N. A completeness theorem for the system of eigenfunctions of the complex Schrödinger operator with potential \(q(x)=cx^\alpha \). (English. Russian original) Zbl 1472.34149 Math. Notes 109, No. 5, 836-839 (2021); translation from Mat. Zametki 109, No. 5, 797-800 (2021). MSC: 34L10 34L40 PDF BibTeX XML Cite \textit{S. N. Tumanov}, Math. Notes 109, No. 5, 836--839 (2021; Zbl 1472.34149); translation from Mat. Zametki 109, No. 5, 797--800 (2021) Full Text: DOI OpenURL
Bhunia, Pintu; Nayak, Raj Kumar; Paul, Kallol Improvement of \(A\)-numerical radius inequalities of semi-Hilbertian space operators. (English) Zbl 07369353 Result. Math. 76, No. 3, Paper No. 120, 10 p. (2021). Reviewer: Agnes Radl (Berlin) MSC: 47A12 47A30 47A63 PDF BibTeX XML Cite \textit{P. Bhunia} et al., Result. Math. 76, No. 3, Paper No. 120, 10 p. (2021; Zbl 07369353) Full Text: DOI arXiv OpenURL
Ghaedrahmati, Arezoo; Sameripour, Ali Investigation of the spectral properties of a non-self-adjoint elliptic differential operator. (English) Zbl 07368246 Int. J. Math. Math. Sci. 2021, Article ID 5564552, 7 p. (2021). MSC: 47F05 47F10 PDF BibTeX XML Cite \textit{A. Ghaedrahmati} and \textit{A. Sameripour}, Int. J. Math. Math. Sci. 2021, Article ID 5564552, 7 p. (2021; Zbl 07368246) Full Text: DOI OpenURL
Ko, Eungil; Lee, Ji Eun On quasinormality of singular integral operators with Cauchy kernel on \(L^2\). (English) Zbl 07367840 J. Integral Equations Appl. 33, No. 1, 77-89 (2021). Reviewer: Qingying Xue (Beijing) MSC: 47A20 47B15 PDF BibTeX XML Cite \textit{E. Ko} and \textit{J. E. Lee}, J. Integral Equations Appl. 33, No. 1, 77--89 (2021; Zbl 07367840) Full Text: DOI OpenURL
Caruso, Noè Angelo; Michelangeli, Alessandro Krylov solvability of unbounded inverse linear problems. (English) Zbl 1473.41009 Integral Equations Oper. Theory 93, No. 1, Paper No. 1, 26 p. (2021). Reviewer: Andrei Sipoş (Bucureşti) MSC: 41A65 46N40 47B25 47N40 PDF BibTeX XML Cite \textit{N. A. Caruso} and \textit{A. Michelangeli}, Integral Equations Oper. Theory 93, No. 1, Paper No. 1, 26 p. (2021; Zbl 1473.41009) Full Text: DOI arXiv OpenURL
Berlics, Péter On self-adjoint linear relations. (English) Zbl 1474.47007 Math. Pannonica (N.S.) 27, No. 1, 1-17 (2021). Reviewer: Ömer Gök (Istanbul) MSC: 47A06 47A05 47B25 47B65 PDF BibTeX XML Cite \textit{P. Berlics}, Math. Pannonica (N.S.) 27, No. 1, 1--17 (2021; Zbl 1474.47007) Full Text: DOI arXiv OpenURL
Allahverdiev, Bilender P. Dilations, models and spectral problems of non-self-adjoint Sturm-Liouville operators. (English) Zbl 1483.47043 Miskolc Math. Notes 22, No. 1, 17-32 (2021). MSC: 47B28 34B24 34B40 34L10 34L25 47A20 47A40 47A45 47A75 47B44 47E05 PDF BibTeX XML Cite \textit{B. P. Allahverdiev}, Miskolc Math. Notes 22, No. 1, 17--32 (2021; Zbl 1483.47043) Full Text: DOI OpenURL
Cornejo, M. Eugenia; Medina, Jesús; Ramírez-Poussa, Eloísa Implication operators generating pairs of weak negations and their algebraic structure. (English) Zbl 1464.03091 Fuzzy Sets Syst. 405, 18-39 (2021). MSC: 03G10 03B52 06A15 PDF BibTeX XML Cite \textit{M. E. Cornejo} et al., Fuzzy Sets Syst. 405, 18--39 (2021; Zbl 1464.03091) Full Text: DOI OpenURL
Kadchenko, Sergeĭ Ivanovich; Ryazanova, Lyubov’ Sergeevna; Dzhiganchina, Yuliya Rustamovna Algorithm for numerical solution of inverse spectral problems generated by Sturm-Liouville operators of an arbitrary even order. (English) Zbl 07362761 Vestn. Yuzhno-Ural. Gos. Univ., Ser. Mat. Model. Program. 14, No. 2, 52-63 (2021). MSC: 47A10 PDF BibTeX XML Cite \textit{S. I. Kadchenko} et al., Vestn. Yuzhno-Ural. Gos. Univ., Ser. Mat. Model. Program. 14, No. 2, 52--63 (2021; Zbl 07362761) Full Text: DOI MNR OpenURL
Demni, Nizar; Hamdi, Tarek Schur-Weyl duality and the product of randomly-rotated symmetries by a unitary Brownian motion. (English) Zbl 07362258 Infin. Dimens. Anal. Quantum Probab. Relat. Top. 24, No. 1, Article ID 2150002, 18 p. (2021). Reviewer: Isamu Dôku (Saitama) MSC: 46L54 47B15 60H10 15B52 PDF BibTeX XML Cite \textit{N. Demni} and \textit{T. Hamdi}, Infin. Dimens. Anal. Quantum Probab. Relat. Top. 24, No. 1, Article ID 2150002, 18 p. (2021; Zbl 07362258) Full Text: DOI arXiv OpenURL
Stempak, Krzysztof Spectral properties of ordinary differential operators admitting special decompositions. (English) Zbl 07359976 Commun. Pure Appl. Anal. 20, No. 5, 1961-1986 (2021). Reviewer: A. S. Makin (Moskva) MSC: 47E05 47B25 34B24 PDF BibTeX XML Cite \textit{K. Stempak}, Commun. Pure Appl. Anal. 20, No. 5, 1961--1986 (2021; Zbl 07359976) Full Text: DOI OpenURL
Voytitsky, V. I. Strong dissipative hydrodynamical systems and the operator pencil of S. Krein. (English) Zbl 07357854 Lobachevskii J. Math. 42, No. 5, 1094-1112 (2021). Reviewer: Nikita V. Artamonov (Moskva) MSC: 47A56 34G10 76D45 76E15 76U05 74F10 PDF BibTeX XML Cite \textit{V. I. Voytitsky}, Lobachevskii J. Math. 42, No. 5, 1094--1112 (2021; Zbl 07357854) Full Text: DOI OpenURL
Hiai, Fumio; Kosaki, Hideki Connections of unbounded operators and some related topics: von Neumann algebra case. (English) Zbl 1477.46069 Int. J. Math. 32, No. 5, Article ID 2150024, 88 p. (2021). MSC: 46L10 47A64 46L51 47A63 PDF BibTeX XML Cite \textit{F. Hiai} and \textit{H. Kosaki}, Int. J. Math. 32, No. 5, Article ID 2150024, 88 p. (2021; Zbl 1477.46069) Full Text: DOI arXiv OpenURL
Signori, Andrea Penalisation of long treatment time and optimal control of a tumour growth model of Cahn-Hilliard type with singular potential. (English) Zbl 1470.35369 Discrete Contin. Dyn. Syst. 41, No. 6, 2519-2542 (2021). MSC: 35Q92 49J20 49K20 35K86 92C50 92C37 92C17 PDF BibTeX XML Cite \textit{A. Signori}, Discrete Contin. Dyn. Syst. 41, No. 6, 2519--2542 (2021; Zbl 1470.35369) Full Text: DOI arXiv OpenURL
Lopotko, O. V. Evenly positive definite function of Hilbert space. Self-adjoint operators which are connected by algebraic relationship. (English) Zbl 1477.46050 Mat. Stud. 55, No. 1, 85-93 (2021). MSC: 46G12 43A35 47B15 PDF BibTeX XML Cite \textit{O. V. Lopotko}, Mat. Stud. 55, No. 1, 85--93 (2021; Zbl 1477.46050) Full Text: DOI OpenURL
Garayev, M. T.; Alomari, M. W. Inequalities for the Berezin number of operators and related questions. (English) Zbl 07352448 Complex Anal. Oper. Theory 15, No. 2, Paper No. 30, 31 p. (2021). MSC: 47B32 47B06 47B34 PDF BibTeX XML Cite \textit{M. T. Garayev} and \textit{M. W. Alomari}, Complex Anal. Oper. Theory 15, No. 2, Paper No. 30, 31 p. (2021; Zbl 07352448) Full Text: DOI OpenURL
Mondal, Shyam Swarup; Kumar, Vishvesh Self-adjointness and compactness of operators related to finite measure spaces. (English) Zbl 07352440 Complex Anal. Oper. Theory 15, No. 2, Paper No. 22, 31 p. (2021). MSC: 47F05 47G30 43A85 35S05 PDF BibTeX XML Cite \textit{S. S. Mondal} and \textit{V. Kumar}, Complex Anal. Oper. Theory 15, No. 2, Paper No. 22, 31 p. (2021; Zbl 07352440) Full Text: DOI OpenURL
Veliev, Oktay Non-self-adjoint Schrödinger operator with a periodic potential. (English) Zbl 07351691 Cham: Springer (ISBN 978-3-030-72682-9/hbk; 978-3-030-72683-6/ebook). x, 294 p. (2021). MSC: 47-02 47B28 81Q12 PDF BibTeX XML Cite \textit{O. Veliev}, Non-self-adjoint Schrödinger operator with a periodic potential. Cham: Springer (2021; Zbl 07351691) Full Text: DOI OpenURL