J. Morris

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20212026

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3 papers · 1 filter

math.AT2025

Splittings of truncated motivic Brown--Peterson cooperations algebras

Jackson Morris, Sarah Petersen, Elizabeth Tatum

We construct spectrum-level splittings of $B P G L ⟨ 1 ⟩ \land B P G L ⟨ 1 ⟩$ at all primes $p$ , where $B P G L ⟨ 1 ⟩$ is the first truncated motivic Br…

math.KT2025

Rings of cooperations for hermitian K-theory over finite fields

Jackson Morris

We compute the ring of cooperations $π_{*, *}^{F_{q}} (kq \otimes kq)$ for the very effective hermitian K-theory over all finite fields $F_{q}$ where $\te…

math.AT2025

On the ring of cooperations for real hermitian K-theory

Jackson Morris

Let kq denote the very effective cover of the motivic Hermitian K-theory spectrum. We analyze the ring of cooperations $π_{**}^{R} (kq \otimes kq)$ in the stabl…