Totally real immersions of surfaces
Abstract
Totally real immersions of a closed real surface in an almost complex surface are completely classified, up to homotopy through totally real immersions, by suitably defined homotopy classes of mappings from into a specific real 5-manifold , while themselves are subject to a single cohomology constraint. This follows from Gromov's observation that totally real immersions satisfy the h-principle. For the receiving complex surfaces , , and CP^2 # m\bar{CP^2}, , and all (or, CP^2 # 8\bar{CP^2} and all orientable ), we illustrate the above nonconstructive result with explicit examples of immersions realizing all possible equivalence classes. We also determine which equivalence classes contain totally real embeddings, and provide examples of such embeddings for all classes that contain them.
Keywords
Cite
@article{arxiv.math/0612855,
title = {Totally real immersions of surfaces},
author = {Andrzej Derdzinski and Tadeusz Januszkiewicz},
journal= {arXiv preprint arXiv:math/0612855},
year = {2009}
}
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71 pages