6 papers
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…
Products in spin-cobordism
Hassan Abdallah, Andrew Salch
We calculate the mod spin-cobordism ring up to uniform -isomorphism (i.e., inseparable isogeny). As a consequence we get the prime ideal spectrum of the mod spin…
Commuting unbounded homotopy limits with Morava K-theory
Gabriel Angelini-Knoll, Andrew Salch
This paper provides conditions for Morava -theory to commute with certain homotopy limits. These conditions extend previous work on this question by allowing for homotopy limits…
Computation of the classifying ring of formal modules
Andrew Salch
In this paper, we develop general machinery for computing the classifying ring of one-dimensional formal -modules, for various commutative rings . We then apply the mac…
Superradiance of Friedberg-Lee-Sirlin Solitons
Guo-Dong Zhang, Cheng-Hao Li, Qi-Xin Xie +1
It has recently been pointed out that rotation in internal space can induce superradiance. We explore this effect in non-topological solitons of the two-field Friedberg-Lee-Sirlin…
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…