Results 51 to 60 of about 57,085 (156)
WZW terms without anomalies: Generalised symmetries in chiral Lagrangians
SciPost PhysicsWe consider a 4d non-linear sigma model on the coset $(\text{SU}(N)_L × \text{SU}(N)_R × \text{SU}(2))/(\text{SU}(N)_{L+R}× \mathrm{U}(1))\cong \text{SU}(N) × S^2$, that features a topological Wess–Zumino–Witten (WZW) term whose curvature is $\frac{n}{24\
Joe Davighi, Nakarin Lohitsiri
doaj +1 more source
The character of topological groups, via Pontryagin-van Kampen duality [PDF]
, 2011 The Birkhoff-Kakutani Theorem asserts that a topological group is metrizable if and only if it has countable character. We develop and apply tools for the estimation of the character for a wide class of nonmetrizable topological groups.
Chis, Cristina +3 more
core +1 more source
Vector bundles on bielliptic surfaces: Ulrich bundles and degree of irrationality
Mathematische Nachrichten, Volume 299, Issue 3, Page 514-528, March 2026.Abstract This paper deals with two problems about vector bundles on bielliptic surfaces. The first is to give a classification of Ulrich bundles on such surfaces S$S$, which depends on the topological type of S$S$. In doing so, we study the weak Brill–Noether property for moduli spaces of sheaves with isotropic Mukai vector. Adapting an idea of Moretti
Edoardo Mason
wiley +1 more source
The k-spaces property of the free Abelian topological groups over non-metrizable Lašnev spaces
Topology and its Applications, 2017 Let \(A(X)\) be the free abelian topological group over a Tychonoff space \(X\) and for each natural number \(n\), let \(A_n(X)\) denote the subspace of \(A(X)\) consisting of all words of reduced length at most \(n\). Let \(X\) be a metrizable space. In [Topology Appl. 33, No. 1, 63--76 (1989; Zbl 0689.54009)], \textit{A. V.
Lin, Fucai, Liu, Chuan
openaire +3 more sources
Tree homology and a conjecture of Levine
, 2010 In his study of the group of homology cylinders, J. Levine made the conjecture that a certain homomorphism eta': T -> D' is an isomorphism. Here T is an abelian group on labeled oriented trees, and D' is the kernel of a bracketing map on a quasi-Lie ...
Cochran +9 more
core +2 more sources
Fortschritte der Physik, Volume 74, Issue 3, March 2026.ABSTRACT We propose a manifestly duality‐invariant, Lorentz‐invariant, and local action to describe quantum electrodynamics in the presence of magnetic monopoles that derives from Sen's formalism. By employing field strengths as the dynamical variables, rather than potentials, this formalism resolves longstanding ambiguities in prior frameworks.
Aviral Aggarwal +2 more
wiley +1 more source
Gauge Transformations, BRST Cohomology and Wigner's Little Group
, 2006 We discuss the (dual-)gauge transformations and BRST cohomology for the two (1 + 1)-dimensional (2D) free Abelian one-form and four (3 + 1)-dimensional (4D) free Abelian 2-form gauge theories by exploiting the (co-)BRST symmetries (and their ...
Aitchison I. J. R. +27 more
core +1 more source
Journal of the London Mathematical Society, Volume 113, Issue 3, March 2026.Abstract We count and give a parametrization of connected components in the space of flags transverse to a given transverse pair in every flag varieties of SO0(p,q)$\operatorname{SO}_0(p,q)$. We compute the effect the involution of the unipotent radical has on those components and, using methods of Dey–Greenberg–Riestenberg, we show that for certain ...
Clarence Kineider, Roméo Troubat
wiley +1 more source
On the Chabauty space of locally compact abelian groups
, 2010 This paper contains several results about the Chabauty space of a general locally compact abelian group. Notably, we determine its topological dimension, we characterize when it is totally disconnected or connected; we characterize isolated points ...
Bourbaki +15 more
core +1 more source
The k-property of free Abelian topological groups and products of sequential fans
Topology and its Applications, 2018 17pages.
Lin, Fucai, Lin, Shou, Liu, Chuan
openaire +3 more sources