activity
20102026
most citedA May-type spectral sequence for higher topological Hochschild homology

11 citations · 36 across the 37 of their papers we have counts for

collaborators

39 papers

math.AT2026

Ext-groups of graded comodules

Andrew Salch

Let be a coalgebra over a field. There is a well-known covariant embedding of the category of graded -comodules into the category of graded modules over the dual algebra $Γ^…

math.CT2025

Notes on model structures on preorders

Andrew Salch, Gunjeet Singh

Given subsets of a preorder , we give necessary and sufficient conditions for to admit the structure of a model category whose…

math.AT2025

The action of the Morava stabilizer group on the coefficients of Morava E-theory at height 2

Andrew Salch

We calculate an explicit closed formula for the action of the height 2 full Morava stabilizer group on the coefficient ring of height 2 Morava E-theory. In particular, this yields…

math.AT2024

The mod p cohomology of the Morava stabilizer group at large primes

Mohammad Behzad Kang, Andrew Salch

We calculate the cohomology of the extended Morava stabilizer group of height , with trivial mod coefficients, for all heights and all primes . The result is an ex…

math.AT2024

Iwasawa invariants of finite spectra

Austin Maison, Andrew Salch

We calculate the classical Iwasawa invariants of the Iwasawa modules associated to the -adic topological -theory of finite spectra. We show that the graded average of the ord…

math.CO2024

An algebraic approach to asymptotics of the number of unlabelled bicolored graphs

A. Salch

We define and study two structures associated to permutation groups: Dirichlet characters on permutation groups, and the "cycle form," a bilinear form on the group algebras of perm…