An asymptotic homotopy lifting property
Abstract
A -algebra is said to have the homotopy lifting property if for all -algebras and , for every surjective -homomorphism and for every -homomorphism , any path of -homomorphisms starting at lifts to a path of -homomorphisms starting at . Blackadar has shown that this property holds for all semiprojective -algebras. We show that a version of the homotopy lifting property for asymptotic morphisms holds for separable -algebras that are sequential inductive limits of semiprojective -algebras. It also holds for any separable -algebra if the quotient map satisfies an approximate decomposition property in the spirit of (but weaker than) the notion of quasidiagonality for extensions.
Keywords
Cite
@article{arxiv.2311.06677,
title = {An asymptotic homotopy lifting property},
author = {José R. Carrión and Christopher Schafhauser},
journal= {arXiv preprint arXiv:2311.06677},
year = {2024}
}
Comments
Minor typographical errors corrected. Accepted for publication in M\"unster J. Math