35 citations · 40 across the 4 of their papers we have counts for
4 papers
A sparse periodic family in the cohomology of the -motivic Steenrod algebra
Daniel C. Isaksen, Hana Jia Kong, Guchuan Li +2
We study a particular family of elements in the cohomology of the -motivic Steenrod algebra, also known as the -motivic Adams -page. This family exhibi…
Exotic periodic phenomena in the cohomology of the moduli stack of -dimensional formal group laws
Daniel C. Isaksen, Hana Jia Kong, Guchuan Li +2
We describe some periodic structure in the cohomology of the moduli stack of 1-dimensional formal group laws, also known as the -page of the classical Adams--Novikov spectral…
Duality and Pro-Spectra
J. Daniel Christensen, Daniel C. Isaksen
Cofiltered diagrams of spectra, also called pro-spectra, have arisen in diverse areas, and to date have been treated in an ad hoc manner. The purpose of this paper is to systematic…
Obstruction Theory in Model Categories
J. Daniel Christensen, William G. Dwyer, Daniel C. Isaksen
Many examples of obstruction theory can be formulated as the study of when a lift exists in a commutative square. Typically, one of the maps is a cofibration of some sort and the o…