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Found 10,859 Documents (Results 1–100)

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Ferra, Igor Ambo; Petronilho, Gerson; de Lessa Victor, Bruno
Global \(\mathcal{M}\)-hypoellipticity, global \(\mathcal{M}\)-solvability and perturbations by lower order ultradifferential pseudodifferential operators. (English) Zbl 07308321
J. Fourier Anal. Appl. 26, No. 6, Paper No. 85, 40 p. (2020).
Reviewer: Luigi Rodino (Torino)
MSC:  35H10 35H20 35S05
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\textit{I. A. Ferra} et al., J. Fourier Anal. Appl. 26, No. 6, Paper No. 85, 40 p. (2020; Zbl 07308321)
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Park, Efton
A survey of Ron Douglas’s contributions to the index theory of Toeplitz operators. (English) Zbl 1455.47030
Curto, Raul E. (ed.) et al., Operator theory, operator algebras and their interactions with geometry and topology. Ronald G. Douglas memorial volume. Proceedings of the international workshop on operator theory and applications (IWOTA 2018), Shanghai, China, July 23–27, 2018. Cham: Birkhäuser. Oper. Theory: Adv. Appl. 278, 455-465 (2020).
MSC:  47L80 47B35 47A53 58J22 47-02
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\textit{E. Park}, Oper. Theory: Adv. Appl. 278, 455--465 (2020; Zbl 1455.47030)
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Das, B. Krishna; Debnath, Ramlal; Sarkar, Jaydeb
On certain commuting isometries, joint invariant subspaces and \(C^\ast \)-algebras. (English) Zbl 07299678
Curto, Raul E. (ed.) et al., Operator theory, operator algebras and their interactions with geometry and topology. Ronald G. Douglas memorial volume. Proceedings of the international workshop on operator theory and applications (IWOTA 2018), Shanghai, China, July 23–27, 2018. Cham: Birkhäuser (ISBN 978-3-030-43379-6/hbk; 978-3-030-43380-2/ebook). Operator Theory: Advances and Applications 278, 147-170 (2020).
MSC:  47A13 47C15 47L80 47A20 47A45 47B35 47A65 46E22 46E40 47A05
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\textit{B. K. Das} et al., Oper. Theory: Adv. Appl. 278, 147--170 (2020; Zbl 07299678)
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Behera, A. K.; Khirali, B.; Laha, U.; Bhoi, J.
Construction of an equivalent energy-dependent potential by a Taylor series expansion. (English. Russian original) Zbl 1453.81062
Theor. Math. Phys. 205, No. 1, 1353-1363 (2020); translation from Teor. Mat. Fiz. 205, No. 1, 124-136 (2020).
MSC:  81V35 81U05 81Q10 35S05 35P25 41A58
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\textit{A. K. Behera} et al., Theor. Math. Phys. 205, No. 1, 1353--1363 (2020; Zbl 1453.81062); translation from Teor. Mat. Fiz. 205, No. 1, 124--136 (2020)
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Yuldashev, T. K.
On a boundary-value problem for a fourth-order partial integro-differential equation with degenerate kernel. (English. Russian original) Zbl 1448.35530
J. Math. Sci., New York 245, No. 4, 508-523 (2020); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 145, 95-109 (2018).
MSC:  35R09 35A01 35A02 35M10 35S05
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\textit{T. K. Yuldashev}, J. Math. Sci., New York 245, No. 4, 508--523 (2020; Zbl 1448.35530); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 145, 95--109 (2018)
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Bastos, M. Amélia (ed.); Castro, Luís (ed.); Karlovich, Alexei Yu. (ed.)
Operator theory, functional analysis and applications (to appear). (English) Zbl 07248452
Operator Theory: Advances and Applications 282. Basel: Birkhäuser (ISBN 978-3-030-51944-5/hbk; 978-3-030-51945-2/ebook). x, 490 p. (2020).
MSC:  47-06 46-06 47Axx 47Bxx 47Gxx 46Lxx
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\textit{M. A. Bastos} (ed.) et al., Operator theory, functional analysis and applications (to appear). Basel: Birkhäuser (2020; Zbl 07248452)
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Demidov, A. S.
The inverse problem of magneto-electroencephalography is well-posed: it has a unique solution that is stable with respect to perturbations. (English. Russian original) Zbl 1448.35571
J. Math. Sci., New York 245, No. 2, 121-124 (2020); translation from Fundam. Prikl. Mat. 21, No. 4, 17-22 (2016).
MSC:  35R30 35Q60 35Q61 35S15
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\textit{A. S. Demidov}, J. Math. Sci., New York 245, No. 2, 121--124 (2020; Zbl 1448.35571); translation from Fundam. Prikl. Mat. 21, No. 4, 17--22 (2016)
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Ilyinsky, A. S.; Smirnov, Yu. G.
Solvability of the integro-differential equation in the problem of wave diffraction on a junction of rectangular waveguides. (English. Russian original) Zbl 1448.35497
Differ. Equ. 56, No. 8, 1041-1049 (2020); translation from Differ. Uravn. 56, No. 8, 1065-1072 (2020).
MSC:  35Q61 78A45 78A50 35R09 45K05 35A01 35S15
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\textit{A. S. Ilyinsky} and \textit{Yu. G. Smirnov}, Differ. Equ. 56, No. 8, 1041--1049 (2020; Zbl 1448.35497); translation from Differ. Uravn. 56, No. 8, 1065--1072 (2020)
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