Results 11 to 20 of about 69,880 (174)
Abelianization and the Duistermaat–Heckman theorem
Bulletin of the London Mathematical Society, 2023 AbstractWe use the abelianization theorem of Crooks and Weitsman (2022) to prove a non‐abelian generalization of the Duistermaat–Heckman theorem for measures. Our main technical tools include the Gelfand–Cetlin data of Crooks and Weitsman (2022), examples of which are the Gelfand–Cetlin systems of Guillemin–Sternberg and generalizations thereof due to ...
Peter Crooks, Jonathan Weitsman
openaire +3 more sources
Pseudo-Diagonals and Uniqueness Theorems [PDF]
, 2013 We examine a certain type of abelian C*-subalgebras that allow one to give a unified treatment of two uniqueness theorems: for graph C*-algebras and for certain reduced crossed ...
Nagy, Gabriel, Reznikoff, Sarah
core +1 more source
Non-Abelian Pseudocompact Groups
Axioms, 2016 Here are three recently-established theorems from the literature. (A) (2006) Every non-metrizable compact abelian group K has 2|K| -many proper dense pseudocompact subgroups.
W. W. Comfort, Dieter Remus
doaj +1 more source
Non-Abelian Lefschetz hyperplane theorems [PDF]
Journal of Algebraic Geometry, 2018 LetXXbe a smooth projective variety over the complex numbers, and letD⊂XD\subset Xbe an ample divisor. For which spacesYYis the restriction mapr:Hom(X,Y)→Hom(D,Y)\begin{equation*}r: \mathrm {Hom}(X, Y)\to \mathrm {Hom}(D, Y) \end{equation*}an isomorphism?Using positive characteristic methods, we give a fairly exhaustive answer to this question.
openaire +2 more sources
Zwanziger’s pairwise little group on the celestial sphere
Journal of High Energy Physics, 2021 We generalize Zwanziger’s pairwise little group to include a boost subgroup. We do so by working in the celestial sphere representation of scattering amplitudes. We propose that due to late time soft photon and graviton exchanges, matter particles in the
Luke Lippstreu
doaj +1 more source
Transposition Regular AG-Groupoids and Their Decomposition Theorems
Mathematics, 2022 In this paper, we introduce transposition regularity into AG-groupoids, and a variety of transposition regular AG-groupoids (L1/R1/LR, L2/R2/L3/R3-groupoids) are obtained. Their properties and structures are discussed by their decomposition theorems: (1)
Yudan Du, Xiaohong Zhang, Xiaogang An
doaj +1 more source
Derivative for Functions f:G→H, Where G Is a Metric Divisible Group
Mathematics, 2022 In this paper, a derivative for functions f:G→H, where G is any metric divisible group and H is a metric Abelian group with a group metric, is defined. Basic differentiation theorems are stated and demonstrated. In particular, we obtain the Chain Role.
Héctor Andrés Granada Díaz +2 more
doaj +1 more source
On the distributional Stieltjes transformation
International Journal of Mathematics and Mathematical Sciences, 1986 This paper is concerned with some general theorems on the distributional Stieltjes transformation. Some Abelian theorems are proved.
D. Nikolic-Despotovic, A. Takaci
doaj +1 more source
Covering groups and their applications: A survey
Учёные записки Казанского университета: Серия Физико-математические науки, 2022 This article is a survey of covering group theorems and their applications. For a given covering mapping from the topological space onto a topological group, it is natural to pose the following question on the lifting of the group structure from the base
R.N. Gumerov
doaj +1 more source
On the number of zeros of Abelian integrals for a kind of quadratic reversible centers
AIMS Mathematics, 2023 Hilbert$ ' $s 16th problem is extensively studied in mathematics and its applications. Arnold proposed a weakened version focusing on differential equations.
Yanjie Wang, Beibei Zhang, Bo Cao
doaj +1 more source