Intrinsic signs and lower bounds in real algebraic geometry

DOI10.1515/crelle-2012-0055zbMath1344.14034arXiv1112.3851OpenAlexW2963248942MaRDI QIDQ2450177

Andrei Teleman, Christian Okonek

Publication date: 16 May 2014

Published in: Journal für die Reine und Angewandte Mathematik (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1112.3851

zbMATH Keywords

vector bundlescohomology classesprojective spacesectionsEuler classenumerative geometryorientable manifoldsphere bundlesdegree of mapelliptic and hyperbolic linesrelative orientationmultiplicity of zeroWelschinger invariantreal cubicstwenty seven lines of cubic surface

Mathematics Subject Classification ID

Sphere bundles and vector bundles in algebraic topology (55R25) Real algebraic sets (14P05) Enumerative problems (combinatorial problems) in algebraic geometry (14N10)

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