Yang, Chuan Fu; Huang, Zhen You; Yang, Xiao Ping Self-adjointness of the product of two 4th-order differential operators. (Chinese. English summary) Zbl 1481.34035 Adv. Math., Beijing 33, No. 3, 291-302 (2004). MSC: 34B20 34L05 PDFBibTeX XMLCite \textit{C. F. Yang} et al., Adv. Math., Beijing 33, No. 3, 291--302 (2004; Zbl 1481.34035)
Kuliev, N. Dzh. Inverse problems for the Sturm-Liouville equation with a spectral parameter in the boundary condition. (Russian. English summary) Zbl 1479.34035 Dokl., Akad. Nauk Azerb. 60, No. 3-4, 10-16 (2004). MSC: 34A55 34L05 34B05 PDFBibTeX XMLCite \textit{N. Dzh. Kuliev}, Dokl., Akad. Nauk Azerb. 60, No. 3--4, 10--16 (2004; Zbl 1479.34035)
Adigüzelov, Ehliman; Bakṣı, Özlem; Baykal, Oya On a regularized trace of a differential operator with bounded operator coefficient. (English) Zbl 1208.34138 Int. Math. J. 5, No. 3, 273-286 (2004). MSC: 34L05 47E05 PDFBibTeX XMLCite \textit{E. Adigüzelov} et al., Int. Math. J. 5, No. 3, 273--286 (2004; Zbl 1208.34138)
Karabash, I. M.; Malamud, M. M. The similarity of a \(J\)-self-adjoint Sturm-Liouville operator with finite-gap potential to a self-adjoint operator. (English. Russian original) Zbl 1282.34088 Dokl. Math. 69, No. 2, 195-199 (2004); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 395, No. 3, 303-307 (2004). MSC: 34L05 47E05 34L40 47B50 PDFBibTeX XMLCite \textit{I. M. Karabash} and \textit{M. M. Malamud}, Dokl. Math. 69, No. 2, 195--199 (2004; Zbl 1282.34088); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 395, No. 3, 303--307 (2004)
Li, Mengru; Zheng, Ying The rank of eigenvalues of a fourth order ordinary differential operator under periodic boundary condition. (Chinese. English summary) Zbl 1169.34335 J. Zhengzhou Univ., Nat. Sci. Ed. 36, No. 4, 1-5 (2004). MSC: 34L05 47E05 PDFBibTeX XMLCite \textit{M. Li} and \textit{Y. Zheng}, J. Zhengzhou Univ., Nat. Sci. Ed. 36, No. 4, 1--5 (2004; Zbl 1169.34335)
Poulkou, Anthippi On sampling expansions of Kramer type. (English) Zbl 1111.34014 Siafarikas, Panayiotis D. (ed.), International conference on differential, difference equations and their applications, July 1–5, 2002, Patras, Greece. Cairo: Hindawi Publishing Corporation (ISBN 977-5945-14-3/hbk). 117-131 (2004). Reviewer: W. D. Evans (Cardiff) MSC: 34B05 34B24 34L05 PDFBibTeX XMLCite \textit{A. Poulkou}, in: International conference on differential, difference equations and their applications, July 1--5, 2002, Patras, Greece. Cairo: Hindawi Publishing Corporation. 117--131 (2004; Zbl 1111.34014)
Zavgorodnij, M. G.; Kulaev, R. Ch. On continuous dependence of the points of the spectrum of a boundary problem on a graph with respect to the parameters of the agreement condition. (Russian) Zbl 1100.34514 Vladikavkaz. Mat. Zh. 6, No. 2, 10-16 (2004). MSC: 34B45 34L05 34L20 PDFBibTeX XMLCite \textit{M. G. Zavgorodnij} and \textit{R. Ch. Kulaev}, Vladikavkaz. Mat. Zh. 6, No. 2, 10--16 (2004; Zbl 1100.34514) Full Text: EMIS
Hryniv, Rostyslav; Mykytyuk, Yaroslav V. Inverse spectral problems for Sturm-Liouville operators with singular potentials. II: Reconstruction by two spectra. (English) Zbl 1095.34008 Kadets, Vladimir (ed.) et al., Functional analysis and its applications. Proceedings of the international conference, dedicated to the 110th anniversary of Stefan Banach, Lviv National University, Lviv, Ukraine, May 28–31, 2002. Amsterdam: Elsevier (ISBN 0-444-51373-6/hbk). North-Holland Mathematics Studies 197, 97-114 (2004). Reviewer: Vjacheslav Yurko (Saratov) MSC: 34A55 34B24 34L05 34L20 PDFBibTeX XMLCite \textit{R. Hryniv} and \textit{Y. V. Mykytyuk}, North-Holland Math. Stud. 197, 97--114 (2004; Zbl 1095.34008)
Ongun, Mevlüde Yakıt On the spectrum of a nonselfadjoint singular Sturm-Liouville problem with a spectral parameter in the boundary condition. (English) Zbl 1098.34019 Selçuk J. Appl. Math. 5, No. 1, 59-65 (2004). Reviewer: Rostyslav Hryniv (Lviv) MSC: 34B24 34B40 47E05 34L05 PDFBibTeX XMLCite \textit{M. Y. Ongun}, Selçuk J. Appl. Math. 5, No. 1, 59--65 (2004; Zbl 1098.34019)
Vladimirov, A. A.; Sheĭpak, I. A. Spectral properties of an operator matrix. (Russian, English) Zbl 1084.47037 Vestn. Mosk. Univ., Ser. I 2004, No. 3, 23-30 (2004); translation in Mosc. Univ. Math. Bull. 59, No. 3, 25-32 (2004). Reviewer: V. V. Vlasov (Moskva) MSC: 47E05 34L05 76E15 76N15 PDFBibTeX XMLCite \textit{A. A. Vladimirov} and \textit{I. A. Sheĭpak}, Vestn. Mosk. Univ., Ser. I 2004, No. 3, 23--30 (2004; Zbl 1084.47037); translation in Mosc. Univ. Math. Bull. 59, No. 3, 25--32 (2004)
Rynne, B. P. Some recent results on semilinear Sturm-Liouville problems with jumping nonlinearities. (English) Zbl 1084.34027 Delgado, M. (ed.) et al., The first 60 years of nonlinear analysis of Jean Mawhin. Papers from the conference, Sevilla, Spain, April 2003. River Edge, NJ: World Scientific (ISBN 981-238-765-X/hbk ). 199-212 (2004). MSC: 34B24 34L05 34A36 PDFBibTeX XMLCite \textit{B. P. Rynne}, in: The first 60 years of nonlinear analysis of Jean Mawhin. Papers from the conference, Sevilla, Spain, April 2003. River Edge, NJ: World Scientific. 199--212 (2004; Zbl 1084.34027)
Yurko, V. A. An inverse spectral problem for singular nonselfadjoint differential systems. (English. Russian original) Zbl 1091.34007 Sb. Math. 195, No. 12, 1823-1854 (2004); translation from Mat. Sb. 195, No. 12, 123-156 (2004). Reviewer: Vassilis G. Papanicolaou (Athena) MSC: 34A55 34B40 34L05 47E05 PDFBibTeX XMLCite \textit{V. A. Yurko}, Sb. Math. 195, No. 12, 1823--1854 (2004; Zbl 1091.34007); translation from Mat. Sb. 195, No. 12, 123--156 (2004) Full Text: DOI
Bruk, V. M.; Krys’ko, V. A. On the spectrum of operators associated with uniformly well-posed problems. (English. Russian original) Zbl 1078.34522 Differ. Equ. 40, No. 10, 1496-1497 (2004); translation from Differ. Uravn. 40, No. 10, 1417-1418 (2004). MSC: 34G10 34L05 PDFBibTeX XMLCite \textit{V. M. Bruk} and \textit{V. A. Krys'ko}, Differ. Equ. 40, No. 10, 1496--1497 (2004; Zbl 1078.34522); translation from Differ. Uravn. 40, No. 10, 1417--1418 (2004) Full Text: DOI
Yang, Chuan-Fu; Huang, Zhen-You; Yang, Xiao-Ping Self-adjointness of products of \(n\) Schrödinger operators. (English) Zbl 1088.34073 J. Nanjing Univ., Math. Biq. 21, No. 1, 43-53 (2004). Reviewer: Amin Boumenir (Carrollton) MSC: 34L40 34L05 34B20 47E05 PDFBibTeX XMLCite \textit{C.-F. Yang} et al., J. Nanjing Univ., Math. Biq. 21, No. 1, 43--53 (2004; Zbl 1088.34073)
Nabiev, I. M. The inverse spectral problem for the diffusion operator on an interval. (Russian. English summary) Zbl 1081.34011 Mat. Fiz. Anal. Geom. 11, No. 3, 302-313 (2004). Reviewer: Vjacheslav Yurko (Saratov) MSC: 34A55 34B24 34L05 47E05 PDFBibTeX XMLCite \textit{I. M. Nabiev}, Mat. Fiz. Anal. Geom. 11, No. 3, 302--313 (2004; Zbl 1081.34011)
Solomyak, Michael On a differential operator appearing in the theory of irreversible quantum graphs. (English) Zbl 1063.35124 Waves Random Media 14, No. 1, S173-S185 (2004). MSC: 35P05 34L05 35Q40 47E05 81Q10 PDFBibTeX XMLCite \textit{M. Solomyak}, Waves Random Media 14, No. 1, S173--S185 (2004; Zbl 1063.35124) Full Text: DOI
Solomyak, Michael On the spectrum of the Laplacian on regular metric trees. (English) Zbl 1077.47513 Waves Random Media 14, No. 1, S155-S171 (2004). MSC: 47E05 34B45 34L05 81Q10 PDFBibTeX XMLCite \textit{M. Solomyak}, Waves Random Media 14, No. 1, S155--S171 (2004; Zbl 1077.47513) Full Text: DOI
Mingarelli, Angelo B. Characterizing degenerate Sturm-Liouville problems. (English) Zbl 1076.34025 Electron. J. Differ. Equ. 2004, Paper No. 130, 8 p. (2004). MSC: 34B24 34L05 PDFBibTeX XMLCite \textit{A. B. Mingarelli}, Electron. J. Differ. Equ. 2004, Paper No. 130, 8 p. (2004; Zbl 1076.34025) Full Text: EuDML EMIS
Brown, B. Malcolm; Langer, Matthias; Marletta, Marco Spectral concentrations and resonances of a second-order block operator matrix and an associated \(\lambda\)-rational Sturm-Liouville problem. (English) Zbl 1083.34017 Proc. R. Soc. Lond., Ser. A, Math. Phys. Eng. Sci. 460, No. 2052, 3403-3420 (2004). Reviewer: Chie-Ping Chu (Taipei) MSC: 34B24 34L05 PDFBibTeX XMLCite \textit{B. M. Brown} et al., Proc. R. Soc. Lond., Ser. A, Math. Phys. Eng. Sci. 460, No. 2052, 3403--3420 (2004; Zbl 1083.34017) Full Text: DOI
Falomir, H.; Muschietti, M. A.; Pisani, P. A. G. On the resolvent and spectral functions of a second order differential operator with a regular singularity. (English) Zbl 1064.81038 J. Math. Phys. 45, No. 12, 4560-4577 (2004). MSC: 81Q10 34L05 47E05 58J52 PDFBibTeX XMLCite \textit{H. Falomir} et al., J. Math. Phys. 45, No. 12, 4560--4577 (2004; Zbl 1064.81038) Full Text: DOI arXiv
Vagabov, A. I. Regularity conditions for a pencil of general ordinary differential operators. (English. Russian original) Zbl 1120.34334 Differ. Equ. 40, No. 3, 318-328 (2004); translation from Differ. Uravn. 40, No. 3, 299-309 (2004). Reviewer: Bilender P. Allahverdiev MSC: 34L05 34L10 34B05 47E05 PDFBibTeX XMLCite \textit{A. I. Vagabov}, Differ. Equ. 40, No. 3, 318--328 (2004; Zbl 1120.34334); translation from Differ. Uravn. 40, No. 3, 299--309 (2004) Full Text: DOI
An, Jian Yu; Sun, Jiong On the self-adjointness of the product operators of two \(m\)th-order differential operators on \([0,+\infty)\). (English) Zbl 1083.47033 Acta Math. Sin., Engl. Ser. 20, No. 5, 793-802 (2004). Reviewer: Adina Luminiţa Sasu (Timişoara) MSC: 47E05 34L05 PDFBibTeX XMLCite \textit{J. Y. An} and \textit{J. Sun}, Acta Math. Sin., Engl. Ser. 20, No. 5, 793--802 (2004; Zbl 1083.47033) Full Text: DOI
Cao, Xifang; Wu, Hongyou Geometric aspects of higher-order eigenvalue problems. I: Structures on spaces of boundary conditions. (English) Zbl 1078.34065 Int. J. Math. Math. Sci. 2004, No. 13-16, 647-678 (2004). Reviewer: Narahari Parhi (Bhubaneswar) MSC: 34L05 34B05 PDFBibTeX XMLCite \textit{X. Cao} and \textit{H. Wu}, Int. J. Math. Math. Sci. 2004, No. 13--16, 647--678 (2004; Zbl 1078.34065) Full Text: DOI EuDML
Christodoulides, Y. T.; Pearson, D. B. Generalized value distribution for Herglotz functions and spectral theory. (English) Zbl 1072.47040 Math. Phys. Anal. Geom. 7, No. 4, 309-331 (2004). MSC: 47E05 30D35 34L05 PDFBibTeX XMLCite \textit{Y. T. Christodoulides} and \textit{D. B. Pearson}, Math. Phys. Anal. Geom. 7, No. 4, 309--331 (2004; Zbl 1072.47040) Full Text: DOI
Binding, Paul A.; Browne, Patrick J.; Code, Warren J.; Watson, Bruce A. Transformation of Sturm-Liouville problems with decreasing affine boundary conditions. (English) Zbl 1081.34026 Proc. Edinb. Math. Soc., II. Ser. 47, No. 3, 533-552 (2004). Reviewer: Bilender P. Allahverdiev (Isparta) MSC: 34B24 47E05 34L05 34L20 PDFBibTeX XMLCite \textit{P. A. Binding} et al., Proc. Edinb. Math. Soc., II. Ser. 47, No. 3, 533--552 (2004; Zbl 1081.34026) Full Text: DOI
Gül, Erdal The trace formula for a differential operator of fourth order with bounded operator coefficients and two terms. (English) Zbl 1082.47040 Turk. J. Math. 28, No. 3, 231-254 (2004). Reviewer: Vjacheslav Yurko (Saratov) MSC: 47E05 34L05 PDFBibTeX XMLCite \textit{E. Gül}, Turk. J. Math. 28, No. 3, 231--254 (2004; Zbl 1082.47040)
Poulkou, Anthippi On sampling expansions of Kramer type. (English) Zbl 1067.34027 Abstr. Appl. Anal. 2004, No. 5, 371-385 (2004). MSC: 34B24 34L05 PDFBibTeX XMLCite \textit{A. Poulkou}, Abstr. Appl. Anal. 2004, No. 5, 371--385 (2004; Zbl 1067.34027) Full Text: DOI EuDML
Yurko, Vjacheslav Anatoljevich Spectral analysis for differential operators with singularities. (English) Zbl 1074.34008 Abstr. Appl. Anal. 2004, No. 2, 165-182 (2004). Reviewer: Tuncay Aktosun (Arlington) MSC: 34A55 34B24 34L05 47E05 PDFBibTeX XMLCite \textit{V. A. Yurko}, Abstr. Appl. Anal. 2004, No. 2, 165--182 (2004; Zbl 1074.34008) Full Text: DOI EuDML
Gilbert, Daphne J.; Harris, Bernard J.; Riehl, Suzanne M. Bounds for the points of spectral concentration of one-dimensional Schrödinger operators. (English) Zbl 1075.34085 Janas, Jan (ed.) et al., Spectral methods for operators of mathematical physics. Proceedings of the international conference on operator theory and its applications in mathematical physics, OTAMP, Bedlewo, Poland, 2002. Basel: Birkhäuser (ISBN 3-7643-7133-1/hbk). Operator Theory: Advances and Applications 154, 139-149 (2004). Reviewer: Eckhard Giere (Clausthal-Zellerfeld) MSC: 34L05 47E05 34L40 PDFBibTeX XMLCite \textit{D. J. Gilbert} et al., Oper. Theory: Adv. Appl. 154, 139--149 (2004; Zbl 1075.34085)
Stepin, S. A. A dissipative Schrödinger operator without a singular continuous spectrum. (English. Russian original) Zbl 1079.34066 Sb. Math. 195, No. 6, 897-915 (2004); translation from Mat. Sb. 195, No. 6, 137-156 (2004). Reviewer: Tuncay Aktosun (Arlington) MSC: 34L40 34L05 47A10 PDFBibTeX XMLCite \textit{S. A. Stepin}, Sb. Math. 195, No. 6, 897--915 (2004; Zbl 1079.34066); translation from Mat. Sb. 195, No. 6, 137--156 (2004) Full Text: DOI
Davies, E. B.; Kuijlaars, A. B. J. Spectral asymptotics of the non-self-adjoint harmonic oscillator. (English) Zbl 1073.34093 J. Lond. Math. Soc., II. Ser. 70, No. 2, 420-426 (2004). Reviewer: Dmitry Shepelsky (Kharkov) MSC: 34L05 47E05 PDFBibTeX XMLCite \textit{E. B. Davies} and \textit{A. B. J. Kuijlaars}, J. Lond. Math. Soc., II. Ser. 70, No. 2, 420--426 (2004; Zbl 1073.34093) Full Text: DOI
Chalub, Fabio A. C. C.; Zubelli, Jorge P. Matrix bispectrality and Huygen’s principle for Dirac operators. (English) Zbl 1072.58010 Conca, Carlos (ed.) et al., Partial differential equations and inverse problems. Proceedings of the Pan-American Advanced Studies Institute on partial differential equations, nonlinear analysis and inverse problems, Santiago, Chile, January 6–18, 2003. Providence, RI: American Mathematical Society (AMS) (ISBN 0-8218-3448-7/pbk). Contemporary Mathematics 362, 89-112 (2004). MSC: 58J05 35Q53 34L05 37K10 PDFBibTeX XMLCite \textit{F. A. C. C. Chalub} and \textit{J. P. Zubelli}, Contemp. Math. 362, 89--112 (2004; Zbl 1072.58010)
Demiralp, Metin Weighted eigenvalue problem approach to the critical value determination of screened Coulomb potential systems. (English) Zbl 1066.34083 ANACM, Appl. Numer. Anal. Comput. Math. 1, No. 1, 251-259 (2004). MSC: 34L40 34L05 PDFBibTeX XMLCite \textit{M. Demiralp}, ANACM, Appl. Numer. Anal. Comput. Math. 1, No. 1, 251--259 (2004; Zbl 1066.34083) Full Text: DOI
Bairamov, E.; Coskun, C. Jost solutions and the spectrum of the system of difference equations. (English) Zbl 1072.39013 Appl. Math. Lett. 17, No. 9, 1039-1045 (2004). Reviewer: Pavel Rehak (Brno) MSC: 39A12 34L05 PDFBibTeX XMLCite \textit{E. Bairamov} and \textit{C. Coskun}, Appl. Math. Lett. 17, No. 9, 1039--1045 (2004; Zbl 1072.39013) Full Text: DOI
Zelenko, Leonid On a generic topological structure of the spectrum to one-dimensional Schrödinger operators with complex limit-periodic potentials. (English) Zbl 1057.47051 Integral Equations Oper. Theory 50, No. 3, 393-430 (2004). MSC: 47E05 34L40 34L05 PDFBibTeX XMLCite \textit{L. Zelenko}, Integral Equations Oper. Theory 50, No. 3, 393--430 (2004; Zbl 1057.47051) Full Text: DOI
Bayramoglu, Mehmet; Taşçi, Fatih; Zeynalov, Djafar On the discrete spectrum of non-self-adjoint Schrödinger differential equation with an operator coefficient. (English) Zbl 1071.81036 J. Math. Phys. 45, No. 5, 1820-1825 (2004). MSC: 81Q10 34L05 34L40 47E05 81Q05 PDFBibTeX XMLCite \textit{M. Bayramoglu} et al., J. Math. Phys. 45, No. 5, 1820--1825 (2004; Zbl 1071.81036) Full Text: DOI
Romanova, O. A.; Sultanaev, Ya. T. Spectral properties of differential operators of order \(2N\). (English. Russian original) Zbl 1077.34080 Math. Notes 76, No. 2, 280-285 (2004); translation from Mat. Zametki 76, No. 2, 303-307 (2004). Reviewer: Mihai Pascu (Bucureşti) MSC: 34L05 47E05 PDFBibTeX XMLCite \textit{O. A. Romanova} and \textit{Ya. T. Sultanaev}, Math. Notes 76, No. 2, 280--285 (2004; Zbl 1077.34080); translation from Mat. Zametki 76, No. 2, 303--307 (2004) Full Text: DOI
Davies, E. B. Computing the decay of a simple reversible sub-Markov semigroup. (English) Zbl 1055.65112 LMS J. Comput. Math. 7, 1-20 (2004). MSC: 65M70 35K90 60J22 65C40 47D06 34L05 PDFBibTeX XMLCite \textit{E. B. Davies}, LMS J. Comput. Math. 7, 1--20 (2004; Zbl 1055.65112) Full Text: DOI Link
Kong, Q.; Wu, H.; Zettl, A. Singular left-definite Sturm–Liouville problems. (English) Zbl 1058.34029 J. Differ. Equations 206, No. 1, 1-29 (2004). Reviewer: Kazushi Yoshitomi (Tokyo) MSC: 34B24 34L05 34L15 PDFBibTeX XMLCite \textit{Q. Kong} et al., J. Differ. Equations 206, No. 1, 1--29 (2004; Zbl 1058.34029) Full Text: DOI
Riehl, S. M. Connection formulae for spectral functions associated with singular Dirac equations. (English) Zbl 1063.34082 Proc. R. Soc. Edinb., Sect. A, Math. 134, No. 1, 215-223 (2004). Reviewer: Mihai Pascu (Bucureşti) MSC: 34L40 47E05 34L05 PDFBibTeX XMLCite \textit{S. M. Riehl}, Proc. R. Soc. Edinb., Sect. A, Math. 134, No. 1, 215--223 (2004; Zbl 1063.34082) Full Text: DOI
Rubin, Jonathan E. A nonlocal eigenvalue problem for the stability of a traveling wave in a neuronal medium. (English) Zbl 1052.92018 Discrete Contin. Dyn. Syst. 10, No. 4, 925-940 (2004). MSC: 92C20 45J05 34L05 34C60 34D10 37N25 PDFBibTeX XMLCite \textit{J. E. Rubin}, Discrete Contin. Dyn. Syst. 10, No. 4, 925--940 (2004; Zbl 1052.92018) Full Text: DOI
Kapitula, Todd; Sandstede, Björn Eigenvalues and resonances using the Evans function. (English) Zbl 1074.34077 Discrete Contin. Dyn. Syst. 10, No. 4, 857-869 (2004). Reviewer: Heinz Siedentop (München) MSC: 34L05 34L40 PDFBibTeX XMLCite \textit{T. Kapitula} and \textit{B. Sandstede}, Discrete Contin. Dyn. Syst. 10, No. 4, 857--869 (2004; Zbl 1074.34077) Full Text: DOI
Heuser, Harro Ordinary differential equations. An introduction in teaching and application. 4th revised ed. (Gewöhnliche Differentialgleichungen. Einführung in Lehre und Gebrauch.) (German) Zbl 1048.34001 Mathematische Leitfäden. Stuttgart: Teubner (ISBN 3-519-32227-7/pbk). 628 p. (2004). Reviewer: Klaus R. Schneider (Berlin) MSC: 34-01 34A05 34A25 34A30 34A45 65J99 34B05 34D20 34L05 PDFBibTeX XMLCite \textit{H. Heuser}, Gewöhnliche Differentialgleichungen. Einführung in Lehre und Gebrauch. 4th revised ed. Stuttgart: Teubner (2004; Zbl 1048.34001)
Benedikt, Jiří On simplicity of spectra of \(p\)-biharmonic equations. (English) Zbl 1072.34096 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 58, No. 7-8, 835-853 (2004). Reviewer: Johannes F. Brasche (Clausthal) MSC: 34L15 34B24 47J10 34L05 PDFBibTeX XMLCite \textit{J. Benedikt}, Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 58, No. 7--8, 835--853 (2004; Zbl 1072.34096) Full Text: DOI
Gilbert, D. J.; Harris, B. J.; Riehl, S. M. The spectral function for Sturm-Liouville problems where the potential is of Wigner-von Neumann type or slowly decaying. (English) Zbl 1072.34092 J. Differ. Equations 201, No. 1, 139-159 (2004). Reviewer: Johannes F. Brasche (Clausthal) MSC: 34L05 34L40 34B24 PDFBibTeX XMLCite \textit{D. J. Gilbert} et al., J. Differ. Equations 201, No. 1, 139--159 (2004; Zbl 1072.34092) Full Text: DOI
Amirov, R. Kh. Transformation operators for Sturm-Liouville operators with singular potentials. (English) Zbl 1058.34026 Int. J. Pure Appl. Math. 12, No. 3, 311-334 (2004). Reviewer: Vjacheslav Yurko (Saratov) MSC: 34B24 34A55 34L05 47E05 PDFBibTeX XMLCite \textit{R. Kh. Amirov}, Int. J. Pure Appl. Math. 12, No. 3, 311--334 (2004; Zbl 1058.34026)
Das, Jyoti; Everitt, W. N.; Hinton, D. B.; Littlejohn, L. L.; Markett, C. The fourth-order Bessel-type differential equation. (English) Zbl 1053.34013 Appl. Anal. 83, No. 4, 325-362 (2004). Reviewer: Vyacheslav Pivovarchik (Odessa) MSC: 34B05 34B30 47B25 47E05 33C10 33C45 34L05 PDFBibTeX XMLCite \textit{J. Das} et al., Appl. Anal. 83, No. 4, 325--362 (2004; Zbl 1053.34013) Full Text: DOI
Greenberg, Leon; Marletta, Marco The Ekman flow and related problems: spectral theory and numerical analysis. (English) Zbl 1058.34025 Math. Proc. Camb. Philos. Soc. 136, No. 3, 719-764 (2004). Reviewer: W. D. Evans (Cardiff) MSC: 34B20 34B05 34L16 34L05 PDFBibTeX XMLCite \textit{L. Greenberg} and \textit{M. Marletta}, Math. Proc. Camb. Philos. Soc. 136, No. 3, 719--764 (2004; Zbl 1058.34025) Full Text: DOI
Ibrahim, Sobhy El-sayed The spectra of general differential operators in the direct sum spaces. (English) Zbl 1058.34110 Czech. Math. J. 54, No. 1, 9-29 (2004). MSC: 34L05 47E05 34L15 PDFBibTeX XMLCite \textit{S. E. s. Ibrahim}, Czech. Math. J. 54, No. 1, 9--29 (2004; Zbl 1058.34110) Full Text: DOI EuDML
Kirsten, Klaus; McKane, Alan J. Functional determinants for general Sturm-Liouville problems. (English) Zbl 1064.34016 J. Phys. A, Math. Gen. 37, No. 16, 4649-4670 (2004). Reviewer: Chie-Ping Chu (Taipei) MSC: 34B24 34L05 47E05 PDFBibTeX XMLCite \textit{K. Kirsten} and \textit{A. J. McKane}, J. Phys. A, Math. Gen. 37, No. 16, 4649--4670 (2004; Zbl 1064.34016) Full Text: DOI arXiv
Möller, Manfred The essential spectrum of a system of singular ordinary differential operators of mixed order. III: A strongly singular case. (English) Zbl 1069.34123 Math. Nachr. 272, 104-112 (2004). Reviewer: W. D. Evans (Cardiff) MSC: 34L05 34A30 34B05 47E05 76W05 PDFBibTeX XMLCite \textit{M. Möller}, Math. Nachr. 272, 104--112 (2004; Zbl 1069.34123) Full Text: DOI
Hryniv, Rostyslav O.; Mykytyuk, Yaroslav V. Transformation operators for Sturm–Liouville operators with singular potentials. (English) Zbl 1070.34041 Math. Phys. Anal. Geom. 7, No. 2, 119-149 (2004). Reviewer: Vjacheslav Yurko (Saratov) MSC: 34B24 34L05 47A68 47E05 PDFBibTeX XMLCite \textit{R. O. Hryniv} and \textit{Y. V. Mykytyuk}, Math. Phys. Anal. Geom. 7, No. 2, 119--149 (2004; Zbl 1070.34041) Full Text: DOI arXiv
Wei, Guangsheng; Wu, Jianhua Positive self-adjoint operators generated by products of differential expressions. (English) Zbl 1067.47035 J. Math. Anal. Appl. 296, No. 2, 495-503 (2004). Reviewer: Michael Perelmuter (Kyïv) MSC: 47B25 47E05 34L05 PDFBibTeX XMLCite \textit{G. Wei} and \textit{J. Wu}, J. Math. Anal. Appl. 296, No. 2, 495--503 (2004; Zbl 1067.47035) Full Text: DOI
Everitt, W. N.; Poulkou, A. Interpolation theory and first-order boundary value problems. (English) Zbl 1081.34014 Math. Nachr. 269-270, 116-128 (2004). Reviewer: Rostyslav Hryniv (Lviv) MSC: 34B05 41A05 34L05 PDFBibTeX XMLCite \textit{W. N. Everitt} and \textit{A. Poulkou}, Math. Nachr. 269--270, 116--128 (2004; Zbl 1081.34014) Full Text: DOI
Everitt, W. N. A personal history of the \(m\)-coefficient. (English) Zbl 1061.34015 J. Comput. Appl. Math. 171, No. 1-2, 185-197 (2004). Reviewer: Vyacheslav Pivovarchik (Odessa) MSC: 34B20 34B24 34L05 47E05 01-XX 34-03 PDFBibTeX XMLCite \textit{W. N. Everitt}, J. Comput. Appl. Math. 171, No. 1--2, 185--197 (2004; Zbl 1061.34015) Full Text: DOI
Brown, Richard C.; Hinton, Don B. Relative form boundedness and compactness for a second-order differential operator. (English) Zbl 1057.34104 J. Comput. Appl. Math. 171, No. 1-2, 123-140 (2004). Reviewer: Christiane Tretter (Bremen) MSC: 34L05 PDFBibTeX XMLCite \textit{R. C. Brown} and \textit{D. B. Hinton}, J. Comput. Appl. Math. 171, No. 1--2, 123--140 (2004; Zbl 1057.34104) Full Text: DOI
Brown, B. M.; Eastham, M. S. P. Extended Hurwitz results for hypergeometric functions arising in spectral theory. (English) Zbl 1044.33002 J. Comput. Appl. Math. 171, No. 1-2, 113-121 (2004). Reviewer: Stamatis Koumandos (Nicosia) MSC: 33C10 33C05 33C15 34B24 34L05 PDFBibTeX XMLCite \textit{B. M. Brown} and \textit{M. S. P. Eastham}, J. Comput. Appl. Math. 171, No. 1--2, 113--121 (2004; Zbl 1044.33002) Full Text: DOI
Binding, Paul A.; Browne, Patrick J.; Watson, Bruce A. Recovery of the \(m\)-function from spectral data for generalized Sturm-Liouville problems. (English) Zbl 1069.34039 J. Comput. Appl. Math. 171, No. 1-2, 73-91 (2004). Reviewer: Vjacheslav Yurko (Saratov) MSC: 34B24 34L05 47E05 34B20 PDFBibTeX XMLCite \textit{P. A. Binding} et al., J. Comput. Appl. Math. 171, No. 1--2, 73--91 (2004; Zbl 1069.34039) Full Text: DOI
Luef, Franz; Teschl, Gerald On the finiteness of the number of eigenvalues of Jacobi operators below the essential spectrum. (English) Zbl 1049.39027 J. Difference Equ. Appl. 10, No. 3, 299-307 (2004). Reviewer: Alexei Yu. Karlovich (Braga) MSC: 39A70 34B24 34L05 39A12 PDFBibTeX XMLCite \textit{F. Luef} and \textit{G. Teschl}, J. Difference Equ. Appl. 10, No. 3, 299--307 (2004; Zbl 1049.39027) Full Text: DOI arXiv
Alice, K. V.; Krishna Kumar, V.; Padmanabhan, A. On the limit-classifications of even and odd-order formally symmetric differential expressions. (English) Zbl 1065.34020 Proc. Indian Acad. Sci., Math. Sci. 114, No. 1, 65-78 (2004). Reviewer: J. B. Butler jun. (Portland) MSC: 34B20 34L05 47E05 PDFBibTeX XMLCite \textit{K. V. Alice} et al., Proc. Indian Acad. Sci., Math. Sci. 114, No. 1, 65--78 (2004; Zbl 1065.34020) Full Text: DOI arXiv
Bairamov, Elgiz; Kir, Esra Spectral properties of a finite system of Sturm-Liouville differential operators. (English) Zbl 1056.34094 Indian J. Pure Appl. Math. 35, No. 2, 249-256 (2004). Reviewer: E. V. Shchetinina (Samara) MSC: 34L40 34L05 47E05 34L15 PDFBibTeX XMLCite \textit{E. Bairamov} and \textit{E. Kir}, Indian J. Pure Appl. Math. 35, No. 2, 249--256 (2004; Zbl 1056.34094)
Damanik, David; Hundertmark, Dirk Reflection symmetries and absence of eigenvalues for one-dimensional Schrödinger operators. (English) Zbl 1056.34095 Proc. Am. Math. Soc. 132, No. 7, 1957-1962 (2004). Reviewer: Victor S. Rykhlov (Saratov) MSC: 34L40 34L05 47E05 81Q10 PDFBibTeX XMLCite \textit{D. Damanik} and \textit{D. Hundertmark}, Proc. Am. Math. Soc. 132, No. 7, 1957--1962 (2004; Zbl 1056.34095) Full Text: DOI
Allahverdiev, B. P. Dissipative Schrödinger operators with matrix potentials. (English) Zbl 1048.34138 Potential Anal. 20, No. 4, 303-315 (2004). Reviewer: Mihai Pascu (Bucureşti) MSC: 34L40 34L05 34L10 34L25 PDFBibTeX XMLCite \textit{B. P. Allahverdiev}, Potential Anal. 20, No. 4, 303--315 (2004; Zbl 1048.34138) Full Text: DOI
Efendiev, R. F. The characterization problem for one class high order ordinary differential operators with periodic coefficients. arXiv:math/0410307 Preprint, arXiv:math/0410307 [math.SP] (2004). MSC: 34L05 34L25 47A40 81U40 BibTeX Cite \textit{R. F. Efendiev}, ``The characterization problem for one class high order ordinary differential operators with periodic coefficients'', Preprint, arXiv:math/0410307 [math.SP] (2004) Full Text: arXiv
Sokolov, Maksim Introduction to the spectral theory of self-adjoint differential vector-operators. arXiv:math/0409012 Preprint, arXiv:math/0409012 [math.SP] (2004). MSC: 34L05 47B25 47B37 47A16 BibTeX Cite \textit{M. Sokolov}, ``Introduction to the spectral theory of self-adjoint differential vector-operators'', Preprint, arXiv:math/0409012 [math.SP] (2004) Full Text: arXiv
Efendiev, Rakib Feyruz Necessary and sufficient conditions for the inverse problem of one class ordinary differential operators with complex periodic coefficients. arXiv:math/0404273 Preprint, arXiv:math/0404273 [math.SP] (2004). MSC: 34L05 34L25 47A40 81U40 BibTeX Cite \textit{R. F. Efendiev}, ``Necessary and sufficient conditions for the inverse problem of one class ordinary differential operators with complex periodic coefficients'', Preprint, arXiv:math/0404273 [math.SP] (2004) Full Text: arXiv
Voros, André The general 1D Schrödinger equation as an exactly solvable problem. arXiv:math-ph/0412041 Preprint, arXiv:math-ph/0412041 [math-ph] (2004). MSC: 34B24 34L05 34M37 34M60 37N20 81Q05 81Q20 BibTeX Cite \textit{A. Voros}, ``The general 1D Schr\"odinger equation as an exactly solvable problem'', Preprint, arXiv:math-ph/0412041 [math-ph] (2004) Full Text: arXiv
Fedotov, Alexandre; Klopp, Frederic Operateurs de Schrodinger quasi-periodiques adiabatiques : Interactions entre les bandes spectrales d’un operateur periodique. arXiv:math-ph/0403060 Preprint, arXiv:math-ph/0403060 [math-ph] (2004). MSC: 34E05 34E20 34L05 BibTeX Cite \textit{A. Fedotov} and \textit{F. Klopp}, ``Operateurs de Schrodinger quasi-periodiques adiabatiques : Interactions entre les bandes spectrales d'un operateur periodique'', Preprint, arXiv:math-ph/0403060 [math-ph] (2004) Full Text: arXiv