Search Results - "Operator theory"

Trace of multiplication operator restricted to invariant subspaces of some weighted Bergman space.

Authors: Yılmaz, Faruk¹ farukyilmaz@aybu.edu.tr

Source: Cumhuriyet Science Journal. 2026, Vol. 47 Issue 2, p361-365. 5p.

Spectral asymptotic formula for Bessel–Riesz transform commutators.

Authors: Fan, Zhijie Li, Ji Sukochev, Fedor et al.

Source: IMRN: International Mathematics Research Notices; Jun2026, Vol. 2026 Issue 11, p1-53, 53p

Some new numerical radius inequalities via an improved version of the triangle inequality.

Authors: Ren, Yonghui Ighachane, Mohamed Amine Sababheh, Mohammad

Source: Journal of Inequalities & Applications. 6/3/2026, Vol. 2026 Issue 1, p1-17. 17p.

On Certain properties of Finite Rank Operators and Bishop-Phelps-Bollobas Criterion in Banach Spaces.

Authors: Moraa, Orina Okelo, Benard Omoke, Priscah

Source: International Journal of Open Problems in Computer Science & Mathematics; Jun2026, Vol. 19 Issue 2, p54-73, 20p

Geometric Characterization of the Numerical Ranges of Generalized Pencils of Pairs of Projections.

Authors: Fu, Liangyu Wang, Ran Yu, Weiyan

Source: Mathematics (2227-7390). May2026, Vol. 14 Issue 5, p1732. 15p.

Cosine Generation for Second-Order Abstract Cauchy Problems with Dynamic Boundary Conditions: An Operator Matrix Approach.

Authors: Alvarez, Edgardo¹ (AUTHOR)

Source: Mathematics (2227-7390). May2026, Vol. 14 Issue 5, p1703. 21p.

Constraint coordinate-momentum phase space formulations for finite-state quantum systems: The relation between commutator variables and complex Stiefel manifolds.

Authors: Shang, Youhao Cheng, Xiangsong Liu, Jian

Source: Fundamental Research. May2026, Vol. 6 Issue 3, p1468-1479. 12p.

D -Cyclic Operators: A Unified Framework for Cyclicity in Linear Dynamics.

Authors: Sanooj, B. Vinod Kumar, P. B.

Source: Mathematics (2227-7390). May2026, Vol. 14 Issue 9, p1475. 15p.

Modeling of Fuzzy Soft Paranormal-Type Operator Associated with a Fuzzy Soft Hilbert Domain.

Alternate Title: نمذجة نوع من المؤثر فوق السوي الضبابي الناعم المرتبط مع مجال هلبرت الضبابي الناعم.

Authors: Mohsen, Salim Dawood Mohammed, Mohammed Jassim

Source: Iraqi Journal of Science. 2026, Vol. 67 Issue 4, p2387-2394. 8p.

Uniform Approximation by Rational Functions with Prescribed Poles: Operator-Theoretic Perspective and Symmetries.

Authors: Cattani, Carlo¹ (AUTHOR)

Source: Symmetry (20738994). Apr2026, Vol. 18 Issue 4, p665. 19p.

On the Solvability of a Nonlinear Mixed Problem of Bitsadze–Samarskii Type.

Authors: Shynybekov, Abdukhali Koshanov, Bakytbek Ydyrys, Aizhan

Source: Symmetry (20738994). Apr2026, Vol. 18 Issue 4, p574. 11p.

Lower and upper bounds for the p -(A-M)-norm of two operators in Hilbert spaces with applications.

Authors: Altwaijry, Najla Dragomir, Silvestru Sever

Source: AIMS Mathematics. 2026, Vol. 11 Issue 4, p1-22. 22p.

On certain properties of Hybrid Sheffer– λ -type special polynomials and their applications.

Authors: Wani, Shahid Ahmad Khan, Waseem Ahmad Ramírez, William et al.

Source: AIMS Mathematics. 2026, Vol. 11 Issue 4, p1-24. 24p.

Wold-type decomposition for left-invertible weighted shifts on a rootless directed tree.

Authors: CHAYAN, SAMEER TRIYEDI, SHAILESH

Source: Studia Mathematica. 2026, Vol. 287 Issue 3, p205-226. 22p.

Quasi-contractivity, stability and convergence of WCT operators.

Authors: Al Ghafri, Mohammed S. Estaremi, Yousef Huang, Zhidong

Source: Georgian Mathematical Journal. Apr2026, Vol. 33 Issue 2, p189-195. 7p.

Extending Polynomially Normal Operators to (P , Q)-Normal Operators in Semi-Hilbertian Spaces.

Authors: Ahmed Mahmoud, Sid Ahmed Ould Alotaibi, Nura Beinane, Sid Ahmed Ould et al.

Source: Mathematics (2227-7390). Mar2026, Vol. 14 Issue 5, p834. 19p.

INTEGRAL OPERATORS AND THEIR COMMUTATORS IN VARIABLE EXPONENT GENERALIZED WEIGHTED MORREY--GULIYEV SPACES.

Authors: AYDOĞDU, AYŞENUR AYKOL, CANAY HASANOV, JAVANSHIR J.

Source: Journal of Mathematical Inequalities. Mar2026, Vol. 20 Issue 1, p181-202. 22p.

Boundedness and Compactness for the Iterated Commutators of Bilinear Fractional Maximal Operators on Weighted Morrey Spaces.

Authors: Zhu, Kangmin Lin, Zhiyu Tao, Xiangxing et al.

Source: Axioms (2075-1680). Feb2026, Vol. 15 Issue 2, p131. 27p.

Fractional sublinear operators with rough kernels and their commutators on new vanishing generalized Morrey spaces.

Authors: Wei, Qi Mei, Ting

Source: Communications in Analysis & Mechanics (CAM). 2026, Vol. 18 Issue 1, p1-19. 19p.

Refined singular value inequalities for commutators.

Authors: Kaushik, S.K. Kittaneh, Fuad Kumar, Amit

Source: Linear Algebra & its Applications; Jul2026, Vol. 740, p39-55, 17p