Results 151 to 160 of about 24,858 (293)
Domain characterizations of strong commutativity of unbounded self‐adjoint operators
Bulletin of the London Mathematical Society, Volume 58, Issue 11, November 2026.Abstract Let A$A$ and B$B$ be unbounded self‐adjoint operators on a Hilbert space. Suppose that there exists a dense linear subspace D⊆D(AB)∩D(BA)$\mathcal {D}\,\subseteq \mathcal {D}\,(AB)\cap \mathcal {D}\,(BA)$ such that ABx=BAx$ABx=BAx$ for x∈D$x \in \mathcal {D}$. We give some characterizations of the strong commutativity of A$A$ and B$B$ in terms
Konrad Schmüdgen
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Weighted veronese rings via convex semigroups
Bulletin of the London Mathematical Society, Volume 58, Issue 11, November 2026.Abstract We determine several properties of two‐dimensional normal affine semigroup rings, and in particular of weighted Veronese rings, including determinantal presentations, Gröbner bases, graded Hilbert series and graded Betti numbers, the structure of their associated graded rings, and their Koszul property.
Bek Chase +6 more
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Commutativity and Commutative Pairs of Some Differential Equations
CoRR, 2017 Scientific and Technological Research Council of TurkeyTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [115E952]
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Advanced Intelligent Discovery, Volume 2, Issue 5, October 2026.This article investigates how persistent homology, persistent Laplacians, and persistent commutative algebra reveal complementary geometric, topological, and algebraic invariants or signatures of real‐world data. By analyzing shapes, synthetic complexes, fullerenes, and biomolecules, the article shows how these mathematical frameworks enhance ...
Yiming Ren, Guo‐Wei Wei
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Variation inequalities related to Schrödinger operators on weighted Morrey spaces
Open Mathematics, 2019 This paper establishes the boundedness of the variation operators associated with Riesz transforms and commutators generated by the Riesz transforms and BMO-type functions in the Schrödinger setting on the weighted Morrey spaces related to certain ...
Zhang Jing
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Annalen der Physik, Volume 538, Issue 10, October 2026.Nonlocal quantum field theory predicts a finite phase‐space resolution, so even highly squeezed quantum states cannot be localized beyond a fundamental nonlocal limit, providing a potential experimental signature of nonlocality. ABSTRACT In a previous paper we derived an uncertainty relation for nonlocal fields by showing that the physical localization
E. J. Thompson
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Nonnegative Reduced Biquaternion Matrix Factorization With Applications in Color Face Recognition
Numerical Linear Algebra with Applications, Volume 33, Issue 5, October 2026.ABSTRACT Quaternion numbers are commonly used to represent color image pixels. Since color image pixels are nonnegative, nonnegativity constraint should be incorporated into the components of quaternion numbers. However, existing quaternion‐based matrix factorization models do not fully satisfy nonnegativity constraints.
Jifei Miao, Junjun Pan, Michael K. Ng
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Irish Mathematical Society Bulletin, 1996 Summary: We exhibit with proof a ring of minimal order in which the commutator subset is not a subring.
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Iterated commutators and functions of operators [PDF]
, 1968 Feynman formalisms for expressing iterated commutators and functions of ...
Volkin, H. C.
core
Foundations of Wilson Lines and Loops From Basic Concepts to Gauge Field Reconstruction
Fortschritte der Physik, Volume 74, Issue 10, October 2026.Wilson lines and Wilson loops are reviewed as parallel transport observables in continuum gauge theory. Full holonomy data recover the local connection and curvature through short segment and small loop limits. Traced Wilson loops are gauge invariant but lose matrix information, so reconstruction requires a compatible lift constrained by trace ...
Shokoufe Faraji
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