Results 81 to 90 of about 210 (171)

Coulomb branch algebras via symplectic cohomology

open access: yesJournal of Topology, Volume 19, Issue 2, June 2026.
Abstract Let (M¯,ω)$(\bar{M}, \omega)$ be a compact symplectic manifold with convex boundary and c1(TM¯)=0$c_1(T\bar{M})=0$. Suppose that (M¯,ω)$(\bar{M}, \omega)$ is equipped with a convex Hamiltonian G$G$‐action for some connected, compact Lie group G$G$.
Eduardo González   +2 more
wiley   +1 more source

An extended definition of Anosov representation for relatively hyperbolic groups

open access: yesJournal of Topology, Volume 19, Issue 2, June 2026.
Abstract We define a new family of discrete representations of relatively hyperbolic groups which unifies many existing definitions and examples of geometrically finite behavior in higher rank. The definition includes the relative Anosov representations defined by Kapovich–Leeb and Zhu, and Zhu–Zimmer, as well as holonomy representations of various ...
Theodore Weisman
wiley   +1 more source

A note on relative Gelfand–Fuks cohomology of spheres

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 5, May 2026.
Abstract We study the Gelfand–Fuks cohomology of smooth vector fields on Sd$\mathbb {S}^d$ relative to SO(d+1)$\mathrm{SO}(d+1)$ following a method of Haefliger that uses tools from rational homotopy theory. In particular, we show that H∗(BSO(4);R)$H^*(\mathrm{B}\mathrm{SO}(4);\mathbb {R})$ injects into the relative Gelfand–Fuks cohomology which ...
Nils Prigge
wiley   +1 more source

On Leibniz algebras, whose subalgebras are either ideals or self-idealizing

open access: yes, 2021
A subalgebra S of a Leibniz algebra L is called self-idealizing in L if it coincides with its idealizer IL(S). In this paper we study the structure of Leibniz algebras, whose subalgebras are either ideals or self-idealizing.
Kurdachenko, Leonid A.   +2 more
openaire   +2 more sources

Rough subalgebras of some binary algebras connected with logics

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
Properties of rough subalgebras and ideals of some binary algebras playing a central role in the theory of algebras connected with different types of nonclassical logics are described.
Wieslaw A. Dudek, Young Bae Jun
doaj   +1 more source

SBE-Algebras via Intuitionistic Fuzzy Structures

open access: yesMathematics
The study introduces the concept of intuitionistic fuzzy SBE-subalgebras, ideals, and filters, along with level sets of intuitionistic fuzzy sets within the framework of Sheffer stroke BE-algebras. These concepts are shown to be crucial for understanding
Tahsin Oner   +3 more
doaj   +1 more source

ON MAXIMAL SUBALGEBRAS AND MAXIMAL IDEALS OF BOOLEAN ALGEBRAS

open access: yesDemonstratio Mathematica, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

New Branch of Intuitionistic Fuzzification in Algebras with Their Applications

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2018
The intuitionistic fuzzification in ρ-algebras about the concepts of ideals and subalgebras given with several related characterizations is considered.
Samaher Adnan Abdul-Ghani   +3 more
doaj   +1 more source

Prime ideals in closed subalgebras of $L^\infty$.

open access: yesMichigan Mathematical Journal, 1986
Let \(\mathbb{D}\) denote the open disc and let \(H^{\infty}\) denote the algebra of bounded analytic functions on \(\mathbb{D}\). The following question was asked by \textit{F. Forelli} [Linear and complex analysis problem book. Lecture Notes Math. 1043 (1984)]: Let \(Q\) be a nonzero prime ideal in \(H^{\infty}\) such that \(Q\neq H^{\infty}\) and ...
openaire   +2 more sources

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