collaborators

6 papers

math.AT2026

Composition of bispans of -sets and plethysm

Nathan Cornelius, Evan Franchere, Usman Hafeez +4

Let be the Grothendieck ring of the semiring of endomorphisms of the point in the -category of bispans of finite -sets for a finite group . This is the bispan analo…

math.AT2026

The -graded homotopy of Klein-four normed Mackey functors

Bertrand J. Guillou, Jesse Keyes, David Mehrle

We compute the -graded coefficients of the equivariant Eilenberg-Mac Lane spectrum associated to various Hill-Hopkins-Ravenel norms of the constant-

math.AT2026

On the Tambara Affine Line

David Chan, David Mehrle, J. D. Quigley +2

Tambara functors are the analogue of commutative rings in equivariant algebra. Nakaoka defined ideals in Tambara functors, leading to the definition of the Nakaoka spectrum of prim…

math.AT2026

The spectrum of the Burnside Tambara functor

Maxine Elena Calle, David Chan, David Mehrle +3

We compute the spectrum of prime ideals in the Burnside Tambara functor over an arbitrary finite group. Our proof uses recent advances in the commutative algebra of Tambara functor…

math.AT2025

Realizing compatible pairs of transfer systems by combinatorial -operads

David Chan, Myungsin Cho, David Mehrle +4

We investigate how the notions of pairings of operads of May and compatible pairs of indexing systems of Blumberg--Hill relate via the correspondence between indexing systems and $…

math.AT2025

Pathological Computations of Mackey Functor-valued Tor over Cyclic Groups

David Mehrle, J. D. Quigley, Michael Stahlhauer

We compute Mackey functor-valued Tor over certain free incomplete Tambara functors, generalizing the computation of Tor over a polynomial ring on one generator. In contrast with th…