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Regular version of the site

Working paper

Open embeddings and pseudoflat epimorphisms

arxiv.org. math. Cornell University, 2019. No. 1908.02117.
Pirkovskii A. Y., Aristov O.
We characterize open embeddings of Stein spaces and of $C^\infty$-manifolds in terms of certain flatness-type conditions on the respective homomorphisms of function algebras.