activity
20092026
most citedUnits of equivariant ring spectra

16 citations · 28 across the 13 of their papers we have counts for

collaborators

15 papers

math.AT2026

Equivariant formality for rational $\C_{p^k}$-spaces

Rekha Santhanam, Bittu Singh, Soumyadip Thandar

In this paper, we discuss equivariant formality for spaces equipped with a primary cyclic group action. We study the behavior of equivariant formality with some topological constru…

math.GT2026

Brown's Asymptotic Limit Functor and Proper Homology

Sumanta Das, Rekha Santhanam

In 1974, E. M. Brown introduced the -functor to study the proper homotopy groups of an end, suggesting a parallel proper homology theory that has since remained undeveloped. I…

math.AT2026

Equivariant Relative Sectional Category and Induced Invariants

Navnath Daundkar, Rekha Santhanam, Bittu Singh

The relative sectional category, introduced by González, Grant, and Vandembroucq for fibrations and later extended by García-Calcines to arbitrary maps, provides a common framework…

math.AT2023

Cofibrantly generated model structures for functor calculus

Lauren Bandklayder, Julia E. Bergner, Rhiannon Griffiths +2

Model structures for many different kinds of functor calculus can be obtained by applying a theorem of Bousfield to a suitable category of functors. In this paper, we give a genera…

math.AT2023

Higher topological complexity of Seifert fibered manifolds

Navnath Daundkar, Rekha Santhanam, Soumyadip Thandar

In this article, we investigate the higher topological complexity of oriented Seifert fibered manifolds that are Eilenberg--MacLane spaces with infinite fundamental group…

math.AT2023

Cofibration category structures on the category of graphs

Shuchita Goyal, Rekha Santhanam

In this article, we show that there is no cofibration category structure on the category of finite graphs with -homotopy equivalences as the class of weak equivalences. Fur…

math.AT2023

Equivariant Intrinsic Formality

Rekha Santhanam, Soumyadip Thandar

Algebraic models for equivariant rational homotopy theory were developed by Triantafillou and Scull for finite group actions and action, respectively. They showed that given…

math.CO2022

Bounds for the collapsibility number of a simplicial complex and non-cover complexes of hypergraphs

Rekha Santhanam, Samir Shukla, Anurag Singh

The collapsibility number of simplicial complexes was introduced by Wegner in order to understand the intersection patterns of convex sets. This number also plays an important role…

math.AT2020

Enriched functor categories for functor calculus

Lauren Bandklayder, Julia E. Bergner, Rhiannon Griffiths +2

In this paper we present background results in enriched category theory and enriched model category theory necessary for developing model categories of enriched functors suitable f…

math.CO2020

Vertex cut of a graph and connectivity of its neighbourhood complex

Rekha Santhanam, Samir Shukla

We show that if a graph satisfies certain conditions then the connectivity of neighbourhood complex is strictly less than the vertex connectivity of . As an…

math.AT2019★ 3 cited

(Lack of) Model Structures on the Category of Graphs

Shuchita Goyal, Rekha Santhanam

In this article, we study model structures on the category of finite graphs with -homotopy equivalences as the weak equivalences. We show that there does not exist an analo…

math.CO2016★ 1 cited

Lovász' original lower bound: Getting tighter bounds and Reducing computational complexity

Shuchita Goyal, Rekha Santhanam

In this article, we give conditions on a graph under which the Lovász' original bound of the graph can be improved by increasing the topological connectivity of its neighbourhood c…

math.AT2015★ 1 cited

A short treatise on Equivariant Gamma spaces

Rekha Santhanam

Equivariant -spaces model equivariant infinite loop spaces. In this article, we show that there exists a connective Quillen equivalence between the category of equivariant -s…

math.KT2010★ 7 cited

Sheaves and -theory for -schemes

Chenghao Chu, Oliver Lorscheid, Rekha Santhanam

This paper is devoted to the open problem in -geometry of developing -theory for -schemes. We provide all necessary facts from the theory of monoid a…

math.AT2009★ 16 cited

Units of equivariant ring spectra

Rekha Santhanam

It is well known that very special -spaces and grouplike $\E_\infty$ spaces both model connective spectra. Both these models have equivariant analogues. Shimakawa defined the ca…