Marius Dadarlat

collaborators

2 papers

math.KT2025

On Chern classes of almost representations

Marius Dadarlat, Forrest Glebe

For a discrete group $I^$ , we study vector bundles $E_{I ¨} $ on compact subsets of $B I^$ associated to almost representations $I ¨ : I^ \to U (n)$ . We compute the first Chern class of $E_Ï…

math.OA2025

Central extensions and almost representations

Marius Dadarlat, Forrest Glebe

For a sequence of unital tracial $C^{*}$ -algebras $(A_{n}, I ¨ _{n}),$ we construct a canonical central extension of the unitary group $U (ℓ^{\infty} (N, A_{n}) / c_{0} (N, A_{n}))$ …