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Operator Algebras

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Total of 46 entries
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Mon, 12 Oct 2026 (showing 9 of 9 entries )

[1] arXiv:2610.13792 [pdf, html, other]
Title: The generator problem for C*-algebras with comparison
Ben Bouwen, Jorge Castillejos, Jakub Curda
Comments: 41 pages
Subjects: Operator Algebras (math.OA)
[2] arXiv:2610.13646 [pdf, html, other]
Title: Actions of Fell bundles, II: tensor products and Fourier-Stieltjes algebras
Erik Bédos, Roberto Conti
Comments: 38 pages. Comments welcome
Subjects: Operator Algebras (math.OA); Functional Analysis (math.FA); Group Theory (math.GR); Representation Theory (math.RT)
[3] arXiv:2610.12992 [pdf, html, other]
Title: A note on purely infinite extensions
Ping Wong Ng, Cangyuan Wang
Comments: 13 pages
Subjects: Operator Algebras (math.OA)
[4] arXiv:2610.12770 [pdf, html, other]
Title: Wiener's lemma for quasicrystals: hull-uniform decay of covariant kernels on Delone sets
Diego Jaure
Subjects: Operator Algebras (math.OA)
[5] arXiv:2610.13551 (cross-list from math.LO) [pdf, html, other]
Title: Spectral Theory and Descriptive Combinatorics for Non-Regular Borel pmp Graphs
Cecelia Higgins, Pieter Spaas, Sofia Torelli
Subjects: Logic (math.LO); Combinatorics (math.CO); Operator Algebras (math.OA); Spectral Theory (math.SP)
[6] arXiv:2610.13385 (cross-list from math.FA) [pdf, html, other]
Title: Spectral theorem for compact self-adjoint linear relations with an application to elliptic boundary value problems
Mathew Thomas, V. B. Kiran Kumar
Subjects: Functional Analysis (math.FA); Operator Algebras (math.OA)
[7] arXiv:2610.13213 (cross-list from math.QA) [pdf, html, other]
Title: Haar measure for totally positive split real semisimple quantum groups of classical type
Kenny De Commer, Geoffrey Janssens, Wannes Malfait
Comments: 52 pages
Subjects: Quantum Algebra (math.QA); Operator Algebras (math.OA); Representation Theory (math.RT)
[8] arXiv:2610.12490 (cross-list from math.RA) [pdf, html, other]
Title: Homogeneous symmetric trace-positive sextics with vanishing abelianization are sums of Hermitian squares and commutators
Daniel Keren
Subjects: Rings and Algebras (math.RA); Combinatorics (math.CO); Operator Algebras (math.OA)
[9] arXiv:2610.12482 (cross-list from math.RA) [pdf, html, other]
Title: Non-Existence of Abelian KS-Algebras in $M_n(\mathbb{C})$ for $n \geq 3$
Wei Yuan
Subjects: Rings and Algebras (math.RA); Operator Algebras (math.OA)

Fri, 9 Oct 2026 (showing 7 of 7 entries )

[10] arXiv:2610.12219 [pdf, html, other]
Title: Homotopies of constant Cuntz classes in pure $C^*$-algebras
Chrisil Ouseph, Andrew S. Toms
Comments: 9 pages, no figures
Subjects: Operator Algebras (math.OA)
[11] arXiv:2610.11143 [pdf, html, other]
Title: Mean dimension and radius of comparison
George A. Elliott, Zhuang Niu
Comments: 44 Pages. The work was carried out using ChatGPT. The arguments are based on the recent preprint of OpenAI dealing with $\mathbb Z$-actions and the topological ideas used in that paper
Subjects: Operator Algebras (math.OA)
[12] arXiv:2610.11055 [pdf, html, other]
Title: Banach non-isomorphism of type III and semifinite noncommutative $L_p$-spaces
Jinghao Huang, Fedor Sukochev
Comments: work in progress
Subjects: Operator Algebras (math.OA); Functional Analysis (math.FA)
[13] arXiv:2610.11021 [pdf, html, other]
Title: Three-Point Trace Positivity:Schatten Norm Compression and Interpolating Metrics
Trung Dung Vuong, Hiroyuki Osaka
Comments: 33 pages
Subjects: Operator Algebras (math.OA); Mathematical Physics (math-ph)
[14] arXiv:2610.12268 (cross-list from math.DS) [pdf, html, other]
Title: Furstenberg discretization with moment control and entropy rigidity
Benjamin Anderson-Sackaney, Tim de Laat, Ebrahim Samei, Matthew Wiersma
Subjects: Dynamical Systems (math.DS); Operator Algebras (math.OA)
[15] arXiv:2610.11785 (cross-list from math.QA) [pdf, html, other]
Title: Facets of nondegeneracy: central type factor groups, Heisenberg representations and Hadamard matrices
Pierre Bieliavsky, Victor Gayral, Sergey Neshveyev, lars Tuset
Comments: 18 pages
Subjects: Quantum Algebra (math.QA); Combinatorics (math.CO); Operator Algebras (math.OA); Representation Theory (math.RT)
[16] arXiv:2610.10765 (cross-list from math.FA) [pdf, html, other]
Title: Isometric rigidity of complete Pick algebras on monomial varieties
Hamidul Ahmed, B. Krishna Das, Chaman Kumar Sahu
Comments: Comments are most welcome
Subjects: Functional Analysis (math.FA); Operator Algebras (math.OA)

Thu, 8 Oct 2026 (showing 8 of 8 entries )

[17] arXiv:2610.10377 [pdf, html, other]
Title: Crystallization of the quantum Stiefel manifolds $SO_q(2n+1)/SO_q(2n-1)$
Surajit Biswas, Vinay Deshpande, Bipul Saurabh
Subjects: Operator Algebras (math.OA); Quantum Algebra (math.QA)
[18] arXiv:2610.09836 [pdf, html, other]
Title: The Geometric Arveson-Douglas Conjecture through Veronese Embeddings
Francesca Arici, Yufan Ge, Dimitris Michail Gerontogiannis
Comments: 18 pages
Subjects: Operator Algebras (math.OA); Algebraic Geometry (math.AG); Complex Variables (math.CV); Functional Analysis (math.FA); K-Theory and Homology (math.KT)
[19] arXiv:2610.09809 [pdf, html, other]
Title: Complexity Rank of AT Algebras of Real Rank Zero
Qingnan An, Kang Li, Zhichao Liu
Comments: 22 pages
Subjects: Operator Algebras (math.OA)
[20] arXiv:2610.09741 [pdf, html, other]
Title: Intrinsic Hutchinson measures and KMS states for iterated function systems with large overlaps
Michael Mampusti, Alexander Mundey, Nicholas Seaton
Comments: 38 pages
Subjects: Operator Algebras (math.OA); Dynamical Systems (math.DS)
[21] arXiv:2610.09678 [pdf, html, other]
Title: The Differential Structure of Generators of KMS-Symmetric Quantum Markov Semigroups
Matthijs Vernooij, Melchior Wirth
Subjects: Operator Algebras (math.OA); Mathematical Physics (math-ph); Functional Analysis (math.FA); Quantum Physics (quant-ph)
[22] arXiv:2610.09390 [pdf, html, other]
Title: Regular simple nuclear C*-algebras
Samuel Evington, Shanshan Hua, Christopher Schafhauser, Apurva Seth, Aaron Tikuisis, Stuart White
Comments: 70 pages
Subjects: Operator Algebras (math.OA)
[23] arXiv:2610.08891 [pdf, html, other]
Title: Groups with rapid decay and trivial amenable radical are C*-simple
Caleb Barnett, Joseph Gondek, Mehrdad Kalantar
Subjects: Operator Algebras (math.OA)
[24] arXiv:2610.10248 (cross-list from quant-ph) [pdf, html, other]
Title: An Explicit Counterexample to Tsirelson's Problem via a Linear System Game
Minbo Gao, Tianshi Yu, Lihong Zhi
Comments: 31 pages
Subjects: Quantum Physics (quant-ph); Functional Analysis (math.FA); Operator Algebras (math.OA)

Wed, 7 Oct 2026 (showing 7 of 7 entries )

[25] arXiv:2610.08193 [pdf, html, other]
Title: Finite-dimensional approximations for C*-algebras of product systems
Evgenios T.A. Kakariadis, Ioannis Apollon Paraskevas
Comments: 38 pages
Subjects: Operator Algebras (math.OA); Functional Analysis (math.FA)
[26] arXiv:2610.08094 [pdf, html, other]
Title: Representations of the infinite Cuntz algebra
Arnaud Brothier, David.E. Evans
Comments: 11 pages
Subjects: Operator Algebras (math.OA); Group Theory (math.GR); Quantum Algebra (math.QA)
[27] arXiv:2610.08032 [pdf, html, other]
Title: A noncommutative transfer principle
Louis E Labuschagne, Claud Steyn
Comments: 36 pages
Subjects: Operator Algebras (math.OA); Dynamical Systems (math.DS)
[28] arXiv:2610.08010 [pdf, html, other]
Title: Molnár's Theorem for split $C^*$-by-nilpotent algebras
Mario Galici, Gianmarco La Rosa, Manuel Mancini, Gábor P. Nagy
Comments: Final version, accepted for publication
Journal-ref: Linear and Multilinear Algebra (2026)
Subjects: Operator Algebras (math.OA); Rings and Algebras (math.RA)
[29] arXiv:2610.07718 [pdf, html, other]
Title: The effect of edge deletion on noncommutative distances on graphs
Eric Swartz
Comments: 33 pages, 5 figures
Subjects: Operator Algebras (math.OA); Combinatorics (math.CO)
[30] arXiv:2610.08511 (cross-list from math.DS) [pdf, html, other]
Title: Groupoid strict comparison for Ample Groupoids: Fiberwise Supramenability and Topological Amenability
Chunlin Liu, Xin Ma, Jianchao Wu
Subjects: Dynamical Systems (math.DS); Operator Algebras (math.OA)
[31] arXiv:2610.08307 (cross-list from math.QA) [pdf, html, other]
Title: The Quantum Cayley Graphs of the Kac-Paljutkin Quantum Group
Luca Junk
Comments: 22 pages
Subjects: Quantum Algebra (math.QA); Operator Algebras (math.OA)

Tue, 6 Oct 2026 (showing 15 of 15 entries )

[32] arXiv:2610.06771 [pdf, html, other]
Title: Quantum integrals
David P. Blecher, Louis E. Labuschagne
Subjects: Operator Algebras (math.OA); Functional Analysis (math.FA)
[33] arXiv:2610.06761 [pdf, html, other]
Title: Ranks of operators and pureness of C*-algebras
Hannes Thiel
Comments: 12 pages
Subjects: Operator Algebras (math.OA)
[34] arXiv:2610.06586 [pdf, html, other]
Title: Classifiability of crossed products
Eusebio Gardella
Comments: 66 pages. Part of the EMS Series of Lectures in Mathematics "K-Theory and Operator Algebras", 2026
Subjects: Operator Algebras (math.OA); Dynamical Systems (math.DS)
[35] arXiv:2610.06187 [pdf, html, other]
Title: $\boldsymbol{\mathrm{K}_1^Δ}$ for $\boldsymbol{\mathrm{C}^\ast}$-algebras
James Gabe, Alistair Miller
Comments: 47 pages
Subjects: Operator Algebras (math.OA)
[36] arXiv:2610.05952 [pdf, html, other]
Title: Metric Spectral Geometry of $\mathbb{Z}^d$-Crossed Products beyond Equicontinuity
Frederic Latremoliere
Comments: 71 pages, first draft
Subjects: Operator Algebras (math.OA)
[37] arXiv:2610.05410 [pdf, html, other]
Title: Embeddings of matrix algebras into the universal Roe algebra
Hiroto Nishikawa
Comments: 20 pages
Subjects: Operator Algebras (math.OA)
[38] arXiv:2610.04548 [pdf, html, other]
Title: Cartan inverse semigroups and twisted Steinberg algebras
Nathan Brownlowe, Lisa Orloff Clark, Ying-Fen Lin, Lynnel D. Naingue
Comments: 14 pages, any feedback is welcome
Subjects: Operator Algebras (math.OA); Rings and Algebras (math.RA)
[39] arXiv:2610.06713 (cross-list from math.DS) [pdf, html, other]
Title: The Almost Finite--Purely Infinite Dichotomy for Minimal Amenable Ample Groupoids
Gábor Elek, Ádám Timár
Comments: 43 pages
Subjects: Dynamical Systems (math.DS); Operator Algebras (math.OA)
[40] arXiv:2610.06455 (cross-list from math.FA) [pdf, html, other]
Title: Noncommutative maximal inequalities for polynomial ergodic averages
Guixiang Hong, Wenbo Li, Eric Ricard, Liang Wang
Comments: 51pages
Subjects: Functional Analysis (math.FA); Classical Analysis and ODEs (math.CA); Dynamical Systems (math.DS); Operator Algebras (math.OA)
[41] arXiv:2610.05990 (cross-list from math.LO) [pdf, html, other]
Title: Computable presentations of reduced group C*-algebras of groups with the rapid decay property
Isaac Goldbring
Comments: 6 pages; first draft; comments welcome!
Subjects: Logic (math.LO); Operator Algebras (math.OA)
[42] arXiv:2610.05986 (cross-list from math.LO) [pdf, html, other]
Title: Computable presentations of reduced group C*-algebras of hyperbolic groups
Isaac Goldbring
Comments: 19 pages; first draft; comments welcome!
Subjects: Logic (math.LO); Operator Algebras (math.OA)
[43] arXiv:2610.05862 (cross-list from math.RA) [pdf, html, other]
Title: Baer-Type Ring Characterizations of Steinberg Algebras, with Applications to Leavitt Path Algebras
Morteza Ahmadi
Subjects: Rings and Algebras (math.RA); Operator Algebras (math.OA)
[44] arXiv:2610.04694 (cross-list from quant-ph) [pdf, html, other]
Title: Stabilizer codes over general phase spaces
Sayan Chakraborty, Victor V. Albert
Comments: 52 pages + appendices, 1 figure, 2 tables
Subjects: Quantum Physics (quant-ph); Information Theory (cs.IT); Mathematical Physics (math-ph); Operator Algebras (math.OA)
[45] arXiv:2610.04583 (cross-list from math.FA) [pdf, html, other]
Title: Simultaneous Williamson's normal form for positive operators
Rudra Kamat, Anmary Tonny
Comments: 19 pages
Subjects: Functional Analysis (math.FA); Operator Algebras (math.OA); Spectral Theory (math.SP)
[46] arXiv:2610.04023 (cross-list from quant-ph) [pdf, html, other]
Title: Multi-Indexed Schatten Quasi- and Anti-Norms and Additivity of Conditional Rényi Entropies
Jan Kochanowski
Comments: 84 pages, comments welcome
Subjects: Quantum Physics (quant-ph); Mathematical Physics (math-ph); Operator Algebras (math.OA)
Total of 46 entries
Showing up to 50 entries per page: fewer | more | all