Results 41 to 50 of about 206 (146)
Symmetry, Integrability and Geometry: Methods and Applications, 2009 A novel algebraic topology approach to supersymmetry (SUSY) and symmetry breaking in quantum field and quantum gravity theories is presented with a view to developing a wide range of physical applications.
Ion C. Baianu +2 more
doaj +1 more source
Which singular tangent bundles are isomorphic?
Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.Abstract Logarithmic and b$ b$‐tangent bundles provide a versatile framework for addressing singularities in geometry. Introduced by Deligne and Melrose, these modified bundles resolve singularities by reframing singular vector fields as well‐behaved sections of these singular bundles.
Eva Miranda, Pablo Nicolás
wiley +1 more source
Electric‐Current‐Assisted Nucleation of Zero‐Field Hopfion Rings
Advanced Materials, Volume 38, Issue 21, 13 April 2026.This work reports a novel and efficient nucleation protocol for 3D localized topological magnetic solitons‐hopfion rings in chiral magnets using pulsed electric currents. By using Lorentz transmission electron microscopy and topological analysis, we report characteristic features and extraordinary stability of hopfion rings in zero or inverted external
Xiaowen Chen +12 more
wiley +1 more source
Classifying (weak) coideal subalgebras of weak Hopf C⁎-algebras
Journal of Algebra, 2020 We develop a general approach to the problem of classification of weak coideal C*-subalgebras of weak Hopf C*-algebras. As an example, we consider weak Hopf C*-algebras and their weak coideal C*-subalgebras associated with Tambara Yamagami categories.
Vainerman, Leonid, Vallin, Jean-Michel
openaire +4 more sources
The many faces of non-invertible symmetries
Journal of High Energy PhysicsWe investigate the interplay between algebraic and categorical notions of non-invertible symmetries. In particular, a fusion categorical symmetry C $$ \mathcal{C} $$ is shown to induce an algebraic symmetry encoded in a weak Hopf algebra H which is ...
Shadi Ali Ahmad +2 more
doaj +1 more source
Limits of cubic differentials and buildings
Proceedings of the London Mathematical Society, Volume 132, Issue 4, April 2026.Abstract In the Labourie–Loftin parameterization of the Hitchin component of surface group representations into SL(3,R)$\mathrm{SL}(3,\mathbb {R})$, we prove an asymptotic formula for holonomy along rays in terms of local invariants of the holomorphic differential defining that ray.
John Loftin +2 more
wiley +1 more source
Multivariate representations of univariate marked Hawkes processes
Scandinavian Journal of Statistics, Volume 53, Issue 1, Page 140-174, March 2026.Abstract Univariate marked Hawkes processes are used to model a range of real‐world phenomena including earthquake aftershock sequences, contagious disease spread, content diffusion on social media platforms, and order book dynamics. This paper illustrates a fundamental connection between univariate marked Hawkes processes and multivariate Hawkes ...
Louis Davis +3 more
wiley +1 more source
Reconstruction of Weak Quasi Hopf Algebras
Journal of Algebra, 1997 19 pages ...
openaire +2 more sources
Weak Hopf algebras corresponding to Cartan matrices [PDF]
Journal of Mathematical Physics, 2005 We replace the group of grouplike elements of the quantized enveloping algebra Uq(g) of a finite dimensional semisimple Lie algebra g by some regular monoid and get the weak Hopf algebra wqd(g). It is a subclass of weak Hopf algebras but not Hopf algebras.
openaire +3 more sources
Representation theory of solitons
Journal of High Energy PhysicsSolitons in two-dimensional quantum field theory exhibit patterns of degeneracies and associated selection rules on scattering amplitudes. We develop a representation theory that captures these intriguing features of solitons.
Clay Córdova +2 more
doaj +1 more source