Search Results - "Functional Analysis (math.FA)"

Zero-dilation indices and numerical ranges

Authors: Kennett L. Dela Rosa

Source: Linear Algebra and its Applications. 726:91-112

Subject Terms: Mathematics - Functional Analysis, FOS: Mathematics, 15A45, 15A60, 15B99, 47A12, 47A20, Functional Analysis (math.FA)

Access URL: http://arxiv.org/abs/2501.00290

Construction of exceptional copositive matrices

Authors: Štrekelj, Tea Zalar, Aljaž

Source: Linear Algebra and its Applications. 727:368-384

Subject Terms: Mathematics - Functional Analysis, FOS: Mathematics, 13J30, 47L07, 52A40 (Primary), 90C22, 90C27 (Secondary), Functional Analysis (math.FA)

Access URL: http://arxiv.org/abs/2502.20133

Doubly transitive equiangular tight frames that contain regular simplices

Authors: Matthew Fickus Evan C. Lake

Source: Linear Algebra and its Applications. 726:113-163

Subject Terms: FOS: Computer and information sciences, 42C15, Combinatorics, Information Theory (cs.IT), Information Theory, FOS: Mathematics, Combinatorics (math.CO), 0101 mathematics, Functional Analysis, 01 natural sciences, Functional Analysis (math.FA)

Access URL: http://arxiv.org/abs/2302.08879

A new proof of Lee's conjecture on the Frobenius norm via the matrix Cauchy-Schwarz inequality

Authors: Teng Zhang

Source: Linear Algebra and its Applications. 725:355-358

Subject Terms: 15A60, 47A30, FOS: Mathematics, Functional Analysis, Functional Analysis (math.FA)

Access URL: http://arxiv.org/abs/2507.02684

A generalization of the Böttcher-Wenzel inequality for three rectangular matrices

Authors: Motoyuki Nobori

Source: Linear Algebra and its Applications. 725:135-144

Subject Terms: Operator Algebras, Rings and Algebras, Rings and Algebras (math.RA), FOS: Mathematics, Operator Algebras (math.OA), Functional Analysis, 15A45, 15A60, 15A18, Functional Analysis (math.FA)

Access URL: http://arxiv.org/abs/2506.17365

Leaf as a Poincaré convex domain associated with an endomorphism on a real inner product space

Authors: Hiroyuki Ogawa

Source: Linear Algebra and its Applications. 724:62-82

Subject Terms: Mathematics - Functional Analysis, 15A60, 47A12, FOS: Mathematics, Functional Analysis (math.FA)

Access URL: http://arxiv.org/abs/2401.01612

Contractive upper triangular matrices with prescribed diagonals and superdiagonals

Authors: Axel Renard

Source: Linear Algebra and its Applications. 724:83-95

Subject Terms: FOS: Mathematics, Functional Analysis, 47A30, 47A08, 15A60, 15A83, 30H05, 30H10, Functional Analysis (math.FA)

Access URL: http://arxiv.org/abs/2506.15444

Highly symmetric lines

Authors: Ganzhinov Mikhail Department of Information and Communications Engineering Information Theory et al.

Contributors: Ganzhinov Mikhail Department of Information and Communications Engineering Information Theory et al.

Source: Linear Algebra and its Applications. 722:12-37

Subject Terms: Mathematics - Functional Analysis, Frames, Irreducible representations of finite groups, Line systems, Mathematics - Metric Geometry, FOS: Mathematics, Mathematics - Combinatorics, Metric Geometry (math.MG), 0102 computer and information sciences, Combinatorics (math.CO), 0101 mathematics, 01 natural sciences, Functional Analysis (math.FA)

File Description: application/pdf

Access URL: http://arxiv.org/abs/2207.08266
https://aaltodoc.aalto.fi/handle/123456789/135858

A duality operators/Banach spaces

Authors: de La Salle, Mikael de la Salle, Mikael Unité de Mathématiques Pures et Appliquées (UMPA-ENSL) et al.

Contributors: de La Salle, Mikael de la Salle, Mikael Unité de Mathématiques Pures et Appliquées (UMPA-ENSL) et al.

Source: Annales de l'Institut Fourier. :1-43

Subject Terms: Mathematics - Functional Analysis, [MATH.MATH-OA]Mathematics [math]/Operator Algebras [math.OA], [MATH.MATH-FA] Mathematics [math]/Functional Analysis [math.FA], FOS: Mathematics, 0101 mathematics, [MATH.MATH-FA]Mathematics [math]/Functional Analysis [math.FA], [MATH.MATH-OA] Mathematics [math]/Operator Algebras [math.OA], 01 natural sciences, [MATH.MATH-GR]Mathematics [math]/Group Theory [math.GR], [MATH.MATH-GR] Mathematics [math]/Group Theory [math.GR], Functional Analysis (math.FA)

Access URL: http://arxiv.org/abs/2101.07666
https://hal.science/hal-03264856v1

An optimal estimate for the norm of wavelet localization operators

Authors: Riccardi, Federico

Source: 2025 International Conference on Sampling Theory and Applications (SampTA). :1-4

Subject Terms: Mathematics - Functional Analysis, Wavelet localization operators, optimal estimates, FOS: Mathematics, Functional Analysis (math.FA)

File Description: application/pdf

Access URL: http://arxiv.org/abs/2502.10228
https://ieeexplore.ieee.org/document/11133537
https://hdl.handle.net/11583/3002838
https://doi.org/10.1109/sampta64769.2025.11133537

Boundary interpolation on triangles via neural network operators

Authors: Aaqib Ayoub Bhat Asif Khan

Source: Mathematics and Computers in Simulation. 241:190-201

Subject Terms: Mathematics - Functional Analysis, 2020: 41A05, 41A35, 41A80, FOS: Mathematics, Mathematics - Numerical Analysis, Numerical Analysis (math.NA), Functional Analysis (math.FA)

Access URL: http://arxiv.org/abs/2410.02793

Acceleration of convergence in approximate solutions of Urysohn integral equations with Green’s kernels

Authors: Shashank K. Shukla Gobinda Rakshit

Source: Mathematics and Computers in Simulation. 240:681-697

Subject Terms: Numerical Analysis, 45G10, 45L05, 65J15, 65R20, FOS: Mathematics, Numerical Analysis (math.NA), Functional Analysis, Functional Analysis (math.FA)

Access URL: http://arxiv.org/abs/2409.01784

Cyclic frames in finite-dimensional Hilbert spaces

Authors: Christensen, Ole Redhu, Navneet Shukla, Niraj K.

Source: Linear Algebra and its Applications. 728:63-81

Subject Terms: 42C15, 47B91, FOS: Mathematics, Functional Analysis, Functional Analysis (math.FA)

Access URL: http://arxiv.org/abs/2508.17088

Equality in some symplectic eigenvalue inequalities

Authors: Hemant K. Mishra

Source: Linear Algebra and its Applications. 728:141-160

Subject Terms: Quantum Physics, 15A42, 15B48, 15A18, FOS: Mathematics, FOS: Physical sciences, Mathematical Physics (math-ph), Quantum Physics (quant-ph), Functional Analysis, Mathematical Physics, Functional Analysis (math.FA)

Access URL: http://arxiv.org/abs/2309.04562

Completely non-unitary contractions and analyticity

Authors: Das, Susmita

Source: Journal of Operator Theory. 94:65-91

Subject Terms: Mathematics - Functional Analysis, 47A08, 47A55, 47A75, 47B20, 47B32, 47B38, 47B91, 47B99, FOS: Mathematics, Functional Analysis (math.FA)

Access URL: http://arxiv.org/abs/2307.12373

Representation of compact operators between Banach spaces

Authors: Ramesh, G. Sangeetha, M. Veena Sequeira, Shanola S.

Source: Journal of Operator Theory. 94:3-21

Subject Terms: Mathematics - Functional Analysis, Mathematics - Spectral Theory, FOS: Mathematics, Spectral Theory (math.SP), 46B50, 47A67, 47B01, 47B07, Functional Analysis (math.FA)

Access URL: http://arxiv.org/abs/2308.07756

A note on the spectrum of Lipschitz operators and composition operators on Lipschitz spaces

Authors: Abbar, Arafat Coine, Clément Petitjean, Colin et al.

Contributors: Abbar, Arafat Coine, Clément Petitjean, Colin et al.

Source: Journal of Operator Theory. 94:175-193

Subject Terms: Mathematics - Functional Analysis, Point spectrum, Compact operator, Lipschitz-free space, Spectrum, FOS: Mathematics, Composition operator, [MATH] Mathematics [math], Functional Analysis (math.FA)

File Description: application/pdf

Access URL: http://arxiv.org/abs/2310.08965
https://hal.science/hal-04243259v1
https://hal.science/hal-04243259v1/document
https://doi.org/10.7900/jot.2023oct13.2467

Calderon's commutator on stratified Lie groups

Authors: Chen, Yanping Gong, Zhenbing Li, Ji et al.

Source: Journal of Operator Theory. 94:151-174

Subject Terms: Mathematics - Functional Analysis, FOS: Mathematics, Functional Analysis (math.FA)

Access URL: http://arxiv.org/abs/2308.06753

On boundary representations

Authors: Davidson, Kenneth R. Hartz, Michael

Source: Journal of Operator Theory. 94:23-34

Subject Terms: Mathematics - Functional Analysis, 46L07 (Primary), 47A20, 46E22, 47L55 (Secondary), Mathematics - Operator Algebras, FOS: Mathematics, Operator Algebras (math.OA), Functional Analysis (math.FA)

Access URL: http://arxiv.org/abs/2308.04919

Simplicity of Lp-graph algebras

Authors: Cortiñas, Guillermo Montero, Diego Rodríguez, María Eugenia

Source: Journal of Operator Theory. 94:93-109

Subject Terms: Mathematics - Functional Analysis, 47L10, 46L55, 16G20, Mathematics - Operator Algebras, FOS: Mathematics, Operator Algebras (math.OA), Functional Analysis (math.FA)

Access URL: http://arxiv.org/abs/2307.05555