Results 81 to 90 of about 4,480 (224)
Proper moduli spaces of orthosymplectic complexes
Bulletin of the London Mathematical Society, Volume 58, Issue 7, July 2026.Abstract We construct proper good moduli spaces for moduli stacks of Bridgeland semistable orthosymplectic complexes on a complex smooth projective variety, which we propose as a candidate for compactifying moduli spaces of principal bundles for the orthogonal and symplectic groups. We also prove some results on good moduli spaces of fixed‐point stacks
Chenjing Bu
wiley +1 more source
International Journal of Analysis and Applications, 2018 Soft set theory, introduced by Molodtsov has been considered as a successful mathematical tool for modeling uncertainties. A double-framed soft set is a generalization of a soft set, consisting of union soft sets and intersectional soft sets.
Faisal Yousafzai +3 more
doaj +2 more sources
String topology via the coHochschild complex and local intersections
Journal of the London Mathematical Society, Volume 114, Issue 1, July 2026.Abstract We construct an algebraic model for the Chas–Sullivan product and the Goresky–Hingston coproduct in string topology. The construction takes as its initial input a simplicial complex equipped with a local pairing on its simplicial chains, for instance, a homology manifold with its local intersection pairing.
Manuel Rivera, Alex Takeda
wiley +1 more source
Suborbifolds and groupoid embeddings [PDF]
, 2020 Given the notion of suborbifold of the second author (based on ideas of Borzellino/Brunsden) and the classical correspondence (up to certain equivalences) between (effective) orbifolds via atlases and effective orbifold groupoids, we analyze which ...
Weilandt, M., Mestre, J.
core
A CONSTRUCTION OF A SYSTEM OF MEASURES SUPPORTED ON (r,d)-FIBRES OF A GROUPOID [PDF]
Fiabilitate şi Durabilitate, 2015 The purpose of this paper is to transfer the construction of the Haar measure of a locally compact group to the groupoid settings. The groupoid is endowed with a family of subsets containing the unit space.
Mădălina Roxana BUNECI
doaj
Semidirect Product of Groupoids and Associated Algebras
Demonstratio Mathematica, 2014 One of the pressing problems in mathematical physics is to find a generalized Poincaré symmetry that could be applied to nonflat space-times. As a step in this direction, we define the semidirect product of groupoids Γ0 ⋊ Γ1 and investigate its ...
Pysiak Leszek +3 more
doaj +1 more source
Canonicity of Weak ω-groupoid Laws Using Parametricity Theory [PDF]
, 2014 International audienceWe show that terms witnessing a groupoid law from the ω-groupoid structure of types are all propositionally equal. Our proof reduce this problem to the unicity of the canonical point in the n-th loop space and conclude using ...
Lasson, Marc
core +1 more source
Infinity‐operadic foundations for embedding calculus
Journal of Topology, Volume 19, Issue 2, June 2026.Abstract Motivated by applications to spaces of embeddings and automorphisms of manifolds, we consider a tower of ∞$\infty$‐categories of truncated right modules over a unital ∞$\infty$‐operad O$\mathcal {O}$. We study monoidality and naturality properties of this tower, identify its layers, describe the difference between the towers as O$\mathcal {O}$
Manuel Krannich, Alexander Kupers
wiley +1 more source
A groupoid characterization of orthomodular lattices [PDF]
, 2005 summary:We prove that an orthomodular lattice can be considered as a groupoid with a distinguished element satisfying simple ...
Chajda, Ivan
core
Opposite algebras of groupoid C*-algebras
, 2021 We show that every groupoid C*-algebra is isomorphic to its opposite, and deduce that there exist C*-algebras that are not stably isomorphic to groupoid C*-algebras, though many of them are stably isomorphic to twisted groupoid C*-algebras. We also prove
Alcides Buss (20261985) +1 more
core +1 more source