Search Results - "Selfadjoint operators"

Quantitative Weighted Bound for Spectral Multiplier of Laplace Transform Type.

Authors: Zhu, Mengli Tao, Xiangxing Hu, Guoen

Source: Mathematics (2227-7390). Jun2026, Vol. 14 Issue 12, p2143. 19p.

Self-adjoint extensions of quantum graphs with eigenparameter-dependent vertex conditions: An operator-theoretic and symplectic geometry approach.

Authors: Zellak, Zineb Mutlu, Gökhan

Source: AIMS Mathematics. 2026, Vol. 11 Issue 6, p1-27. 27p.

Some Results on Generalized Frame Operators Associated with a Fixed Element in 2-Hilbert Spaces.

Source: IAENG International Journal of Applied Mathematics. Apr2026, Vol. 56 Issue 4, p1446-1453. 8p.

Subjects: Hilbert space, Selfadjoint operators, Operator theory

REGULAR SELF-ADJOINT PROBLEMS FOR THE LAPLACE EQUATION.

Alternate Title: Лаплас теңдеуi үшiн регулярлы өзiне-өзi түйiндес есептер.
Регулярные самосопряженные задачи для уравнения Лапласа.

Authors: Kalmenov, T.¹ kalmenov.t@mail.ru

Source: Journal of Mathematics, Mechanics & Computer Science. 2026, Vol. 130 Issue 2, p48-58. 11p.

NONLINEAR BI-SKEW LIE TRIPLE HIGHER DERIVATIONS ON PRIME *-ALGEBRAS.

Authors: ALI, ASMA ALI, SHAKIV TASLEEM, MOHD

Source: Matematychni Studii. 2026, Vol. 65 Issue 2, p127-137. 11p.

Mittag-Leffler Weighted Orthogonal Functions for the ABC Fractional Operator: A Formal Self-Adjointness Construction.

Authors: Awadalla, Muath Alhwikem, Dalal

Source: Fractal & Fractional. Mar2026, Vol. 10 Issue 3, p185. 36p.

DISSERTATIONES MATHEMATICAE.

Authors: Bai, Tengfei Guo, Pengfei Xu, Jingshi

Source: Dissertationes Mathematicae. 2026, Issue 609, p1-54. 54p.

Equality Between the Spectrum of PT-Symmetric Shrödinger Operators and Their Adjoint.

Authors: Özdemir, Ece Kıraç, Alp Arslan

Source: Mathematics (2227-7390). Feb2026, Vol. 14 Issue 4, p608. 9p.

Hardy Spaces Associated with Non-negative Self-adjoint Operators and Ball Quasi-Banach Function Spaces on Doubling Metric Measure Spaces and Their Applications.

Authors: Lin, Xiaosheng Yang, Dachun Yang, Sibei et al.

Source: Communications in Mathematics & Statistics. Feb2026, Vol. 14 Issue 1, p141-193. 53p.

Spectral properties of the one-dimensional Schrödinger Hamiltonian with non-local d' (x + y) potentials.

Authors: Ismoilov, G.¹ golibjon.ismoilov.tdtu@gmail.com

Source: Uzbek Mathematical Journal. 2026, Vol. 70 Issue 1, p100-106. 7p.

From graph to Riesz continuity.

Authors: Prokhorova, Marina¹ marina.p@technion.ac.il

Source: Journal of Analysis & Its Applications / Zeitschrift für Analysis & ihre Anwendungen. 2026, Vol. 45 Issue 1/2, p1-28. 28p.

The Duistermaat index and eigenvalue interlacing for self-adjoint extensions of a symmetric operator.

Authors: Berkolaiko, Gregory Cox, Graham Latushkin, Yuri et al.

Source: Journal of Spectral Theory. 2026, Vol. 16 Issue 1, p1-49. 49p.

Order isomorphisms in C⁎-algebras.

Authors: El Khatiri, Youssef¹ (AUTHOR) elkhatiriyoussef@hotmail.com

Source: Linear Algebra & its Applications. Aug2026, Vol. 743, p181-210. 30p.

Subjects: C*-algebras, Selfadjoint operators, Operator theory, Operator algebras, Jordan algebras, Automorphisms, Von Neumann algebras

Linear preservers of rank k projections.

Authors: Plevnik, Lucijan¹ (AUTHOR) lucijan.plevnik@fmf.uni-lj.si

Source: Linear Algebra & its Applications. Aug2026, Vol. 742, p101-130. 30p.

Subjects: Hilbert space, Selfadjoint operators, Linear operators, Unitary operators, Matrices (Mathematics)

ON ONE PROPERTY OF THE NUMERICAL RANGE OF A TWO-PARAMETER SPECTRAL PROBLEM.

Alternate Title: ОБ ОДНОМ СВОЙСТВЕ ЧИСЛОВОГО ОБРАЗА ДВУХПАРАМЕТРИЧЕСКОЙ СПЕКТРАЛЬНОЙ ЗАДАЧИ.

Authors: Tagi, Mustafayev Sadig Mammadov, Eldar Sh. Cumshud, Kasamanli Hamlet et al.

Source: German International Journal of Modern Science / Deutsche Internationale Zeitschrift für Zeitgenössische Wissenschaft. Oct2025, Issue 114, p26-30. 5p.

AN ELLIPTIC SELF-ADJOINT OPERATOR OF THE SECOND ORDER ON A GRAPH WITH SMALL EDGES.

Alternate Title: Шағын доғасы бар графтар бойында анықталған өзіне-өзі түйіндес екінші ретті эллиптикалық дифференциалдық оператор
Эллиптический самосопряженный оператор второго порядка на графе с малыми ребрами

Authors: Konyrkulzhayeva, M. Auzerkhan, G.

Source: Journal of Mathematics, Mechanics & Computer Science. 2025, Vol. 128 Issue 4, p72-91. 20p.

On Fong-Tsui conjecture and binormality of operators.

Authors: Stanković, Hranislav¹ (AUTHOR) hranislav.stankovic@elfak.ni.ac.rs

Source: Mathematica Slovaca. Oct2025, Vol. 75 Issue 5, p1221-1228. 8p.

Pseudo-selfadjoint operators and their properties.

Authors: Chō, Muneo Ko, Eungil Lee, Ji Eun

Source: Banach Journal of Mathematical Analysis. Oct2026, Vol. 20 Issue 4, p1-27. 27p.

Non‐Relativistic Limit of Dirac Hamiltonians With Aharonov–Bohm Fields.

Authors: Gallone, Matteo Michelangeli, Alessandro Noja, Diego

Source: Studies in Applied Mathematics. Apr2026, Vol. 156 Issue 4, p1-44. 44p.

Self-adjoint operators in the Smolyanov–Shamarov space.

Authors: Shelakov, M. G.¹ (AUTHOR) shelakov.mikhail@mail.ru

Source: Theoretical & Mathematical Physics. Apr2026, Vol. 227 Issue 1, p592-604. 13p.

Subjects: Selfadjoint operators, Hilbert space, Function spaces, Lebesgue measure, Hilbert, David, 1862-1943, Fourier transforms, Laplacian operator