2 citations · 6 across the 13 of their papers we have counts for
13 papers
G-category versus orbifold category
Andres Angel, Hellen Colman
We present a comparative study of certain invariants defined for group actions and their analogues defined for orbifolds. In particular, we prove that Fadell's equivariant category…
Oriented and unitary equivariant bordism of surfaces
Andrés Angel, Eric Samperton, Carlos Segovia +1
Fix a finite group . We study and , the unitary and oriented bordism groups of smooth -equivariant compact surfaces, respectively, and we calculate th…
Thom's counterexamples for the Steenrod problem
Andres Angel, Carlos Segovia, Arley Fernando Torres
The present paper deals with integral classes which are counterexamples for the Steenrod realization problem, where is the $(2…
Proper actions and decompositions in equivariant K-theory
Andrés Angel, Edward Becerra, Mario Velásquez
In this paper we study a natural decomposition of -equivariant -theory of a proper -space, when is a Lie group with a compact normal subgroup acting trivially. Our…
Morita Invariance of Equivariant Lusternik-Schnirelmann Category and Invariant Topological Complexity
Andrés Angel, Hellen Colman, Mark Grant +1
We use the homotopy invariance of equivariant principal bundles to prove that the equivariant -category of Clapp and Puppe is invariant under Morita equivalence. As a…
-stratifolds
Andrés Angel, Arley Fernando Torres, Carlos Segovia
Generalizing the ideas of -manifolds from Sullivan and stratifolds from Kreck, we define -stratifolds. We show that the bordism theory of …
Equivariant complex bundles, fixed points and equivariant unitary bordism
Andrés Angel, José Manuel Gómez, Bernardo Uribe
We study the fixed points of the universal G-equivariant n-dimensional complex vector bundle and obtain a decomposition formula in terms of twisted equivariant universal complex ve…
Equivariant topological complexities
Andres Angel, Hellen Colman
The aim of this article is to review different generalizations of the the notion of topological complexity to the equivariant setting. In particular, we review the relation (or non…
Equilateral -gons in and deformed spheres and mod Fadell-Husseini index
Andrés Angel, Jerson Borja
We introduce the concept of -equilateral -gons. We prove the existence of -equilateral -gons in if and the existence of equilateral -gons in the…
A BV-algebra Structure on Hochschild Cohomology of the Group Ring of Finitely Generated Abelian Groups
Andrés Angel, Diego Duarte
We study a Batalin-Vilkovisky algebra structure on the Hochschild cohomology of the group ring of finitely generated abelian groups. The Batalin-Vilkovisky algebra structure for fi…
The Evasiveness Conjecture and Graphs on 2p Vertices
Andres Angel, Jerson Borja
The Evasiveness conjecture have been proved for properties of graphs on a prime-power number of vertices and the six vertices case. The ten vertices case is still unsolved. In this…
Free and based path groupoids
Andres Angel, Hellen Colman
We give an explicit description of the free path and loop groupoids in the Morita bicategory of translation topological groupoids. We prove that the free path groupoid of a discret…
Hochschild cohomology and string topology of global quotient orbifolds
Andres Angel, Erik Backelin, Bernardo Uribe
Let M be a connected, simply connected, closed and oriented manifold, and G a finite group acting on M by orientation preserving diffeomorphisms. In this paper we show an explicit…