Results 71 to 80 of about 123,101 (223)

Implicit Function Theorems for Non-Differentiable Mappings

open access: yes, 2006
Sufficient conditions are given for a mapping to be $\gamma$-G inverse differentiable. Constrained implicit function theorems for $\gamma$-G inverse differentiable mappings are obtained. The constraints are either closed convex cones or closed subsets in
Bian, W
core   +1 more source

Some commutativity theorems through a Streb\'s classification

open access: yes, 1994
In the present paper we investigate commutativity of rings with unity satisfying any one of the properties ${1-(xmy)g(xmy)}[xmy-xrf(xmy)xs,x]{1-(xmy)h(xmy)}=0$, ${1-(xmy)g(xmy)}[yxm-xrf(xmy)xs,x]{1-(xmy)h(xmy)}=0$, $xt[xk,y]=g(y)[x,f(y)]h(y)$ and $[xk,y ...
Abujabal, H.A.S., Ashraf, M.
core   +1 more source

Local multiplicativity of perverse filtrations

open access: yesTransactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract Let f:S→C$f:S\rightarrow C$ be a proper surjective morphism from a smooth Kähler surface to a smooth curve. We show that the local perverse filtration associated with the induced map S[n]→C(n)$S^{[n]}\rightarrow C^{(n)}$ is multiplicative on each fiber if and only if f$f$ is an elliptic fibration.
Zili Zhang
wiley   +1 more source

On Causal Commutant Lifting Theorems

open access: yesJournal of Mathematical Analysis and Applications, 1993
A causal commutant lifting theorem has been given for time-invariant operators by \textit{C. Foias} and \textit{A. Tannenbaum} [`Causality in commutant lifting theory', to appear in J. Funct. Anal.]. In this paper certain causal lifting theorems for time-varying operators are proved.
openaire   +1 more source

Limit theorems in probability and statistics

open access: yes, 2023
A Bolyai János Matematikai Társulat által 1989-ben, Pécsett rendezett 3. "Hungarian Colloquium on Limit Theorems in Probability and Statistics" előadásaied. by I. Berkes, E.

core  

Global dimension of dg algebras via compact silting objects

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 10, October 2026.
Abstract We introduce a notion of global dimension for a triangulated category relative to a compact silting object. We prove that the finiteness of this dimension is an intrinsic property of the triangulated category itself and, therefore, independent of the choice of the silting object.
Panagiotis Kostas
wiley   +1 more source

Strict contractive conditions and common fixed point theorems with application

open access: yes, 2013
The aim of the present paper is to obtain common fixed point theorems under a strict contractive condition by assuming minimal commutativity conditions. Our theorems extend the results due to Pant and Pant [
Vyomesh Pant
core   +1 more source

How to pick your football team

open access: yesMathematika, Volume 72, Issue 4, October 2026.
Abstract Team captains Alice and Bob divide up 2m$2m$ footballers, each reduced to a real‐valued score, into two teams of m$m$ footballers each. On each turn, one captain plays picker, and the other chooser: the picker names a footballer yet to be selected, and the chooser decides which captain's team receives that footballer.
Bhargav Narayanan
wiley   +1 more source

Entanglement, Space–Time Coordinates, and Bell's Inequalities in Photon–Polarization Experiments

open access: yesAnnalen der Physik, Volume 538, Issue 9, September 2026.
This work presents a revised analysis of Bell‐type inequalities. It is argued that standard derivations of Bell‐type inequalities implicitly rely on additional assumptions beyond those originally stated, specifically concerning the cardinalities of the sets of measurements and photon‐pair properties.
Karl Hess, Jürgen Jakumeit
wiley   +1 more source

A Linear Generalization of the Nearly Gorenstein Property, With Applications to Veronese Subalgebras

open access: yesMathematische Nachrichten, Volume 299, Issue 9, Page 2436-2451, September 2026.
ABSTRACT We study the nearly Gorenstein property for Veronese subalgebras of (semi‐)standard graded algebras. We introduce a condition (♮)$(\natural)$ for Cohen–Macaulay semi‐standard graded rings, motivated by the study of Ehrhart rings. We show that if a semi‐standard graded algebra R$ R$ satisfies (♮)$(\natural)$, then its Veronese subalgebras R(k)$
Sora Miyashita
wiley   +1 more source

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