Results 41 to 50 of about 15,515 (151)
Topological reflexivity of the spaces of (α, β)-derivations on operator algebras [PDF]
Studia Mathematica, 2003 Given automorphisms \(\alpha\) and \(\beta\) of an algebra \(A\), a linear map \(\delta\) from \(A\) into itself is said to be an \((\alpha,\beta)\)-derivation if \(\delta(ab)\beta(b)+ \alpha(a)\delta(b)\) for all \(a,b\in A\). It is shown that the set \(D_{(\alpha,\beta)}(A)\) of all \((\alpha,\beta)\)-dervations on certain operator algebras \(A\) on ...
Jing, Wu, Lu, Shijie
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Duality for Evolutionary Equations With Applications to Null Controllability
Mathematical Methods in the Applied Sciences, Volume 49, Issue 5, Page 4144-4166, 30 March 2026.ABSTRACT We study evolutionary equations in exponentially weighted L2$$ {\mathrm{L}}^2 $$‐spaces as introduced by Picard in 2009. First, for a given evolutionary equation, we explicitly describe the ν$$ \nu $$‐adjoint system, which turns out to describe a system backwards in time. We prove well‐posedness for the ν$$ \nu $$‐adjoint system. We then apply
Andreas Buchinger, Christian Seifert
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Attribute Implication Bases From Galois Connection Structures
Mathematical Methods in the Applied Sciences, Volume 49, Issue 4, Page 2729-2753, 15 March 2026.ABSTRACT Modeling knowledge systems by determining relationships among key variables have been and currently is a fundamental and nontrivial challenge in real‐world scenarios. Many approaches have been developed to reach this goal, but many of them are heuristic and require of alternative procedures to provide robust and tractable rules.
M. Eugenia Cornejo +2 more
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Equivariant toric geometry and Euler–Maclaurin formulae
Communications on Pure and Applied Mathematics, Volume 79, Issue 3, Page 451-557, March 2026.Abstract We first investigate torus‐equivariant motivic characteristic classes of toric varieties, and then apply them via the equivariant Riemann–Roch formalism to prove very general Euler–Maclaurin‐type formulae for full‐dimensional simple lattice polytopes.
Sylvain E. Cappell +3 more
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Algebraic reflexivity for semigroups of operators
The Electronic Journal of Linear Algebra, 2009 Algebraic reflexivity of sets and semigroups of linear transformations are studied in this paper. Some new examples of algebraically reflexive sets and semigroups of linear transforma- tions are given. Using known results on algebraically orbit reflexive linear transformations, those linear transformations on a complex Banach space that are determined ...
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WIREs Data Mining and Knowledge Discovery, Volume 16, Issue 1, March 2026.This systematic review maps 50 years of regression methodology, tracing its evolution from ridge stabilization and penalized estimation to Bayesian, ensemble, and explainable‐AI frameworks. The analysis reveals a unified progression toward interpretable, cross‐domain modeling that integrates statistical rigor, computational scalability, and epistemic ...
Michael Bendersky, Shimon Fridkin
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Assembly of constructible factorization algebras
Journal of Topology, Volume 19, Issue 1, March 2026.Abstract We provide a toolbox of extension, gluing, and assembly techniques for factorization algebras. Using these tools, we fill various gaps in the literature on factorization algebras on stratified manifolds, the main one being that constructible factorization algebras form a sheaf of symmetric monoidal ∞$\infty$‐categories.
Eilind Karlsson +2 more
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Solvability of invariant systems of differential equations on H2$\mathbb {H}^2$ and beyond
Mathematische Nachrichten, Volume 299, Issue 2, Page 456-479, February 2026.Abstract We show how the Fourier transform for distributional sections of vector bundles over symmetric spaces of non‐compact type G/K$G/K$ can be used for questions of solvability of systems of invariant differential equations in analogy to Hörmander's proof of the Ehrenpreis–Malgrange theorem.
Martin Olbrich, Guendalina Palmirotta
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One‐Sidedness and the Inferior Function in Coriolanus and Timon of Athens
Journal of Analytical Psychology, Volume 71, Issue 1, Page 8-34, February 2026.Abstract For both Jung and Shakespeare, one‐sidedness is the fundamental tragic trait. Jung proposed that as an individual develops, they inevitably associate their identity with certain modes of perception and interaction, and that this leads to psychological polarization.
Sofie Qwarnström
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On certain extension properties for the space of compact operators [PDF]
, 1999 Let $Z$ be a fixed separable operator space, $X\subset Y$ general separable operator spaces, and $T:X\to Z$ a completely bounded map. $Z$ is said to have the Complete Separable Extension Property (CSEP) if every such map admits a completely bounded ...
Oikhberg, Timur, Rosenthal, Haskell P.
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