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math.DG2018
An equivalence between pseudo-holomorphic embeddings into almost-complex Euclidean space and CR regular embeddings into complex space
Rafael Torres
We show that a pseudo-holomorphic embedding of an almost-complex -manifold into almost-complex -Euclidean space exists if and only if there is a CR regular embedding…
math.GT2018
Topology change and selection rules for high-dimensional $\Spin(1, n)_0$-Lorentzian cobordisms
Gleb Smirnov, Rafael Torres
We study necessary and sufficient conditions for the existence of Lorentzian and weak Lorentzian cobordisms between closed smooth manifolds of arbitrary dimension such that the str…