Regular homotopy and total curvature. II: Sphere immersions into 3-space.
Ekholm, Tobias (2006)
Algebraic & Geometric Topology
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Displaying similar documents to “Regular homotopy and total curvature I: Circle immersions into surfaces.”
Regular homotopy and total curvature. II: Sphere immersions into 3-space.
Tightness and efficiency of irreducible automorphisms of handlebodies.
Carvalho, Leonardo Navarro (2006)
Geometry & Topology
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Rational Hopf G-spaces with two nontrivial homotopy group systems
Ryszard Doman (1995)
Fundamenta Mathematicae
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Let G be a finite group. We prove that every rational G-connected Hopf G-space with two nontrivial homotopy group systems is G-homotopy equivalent to an infinite loop G-space.
A strong shape theory with S-duality
Friedrich Bauer (1997)
Fundamenta Mathematicae
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Cobordism of Morse functions on surfaces, the universal complex of singular fibers and their application to map germs.
Saeki, Osamu (2006)
Algebraic & Geometric Topology
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Quadrisecants give new lower bounds for the ropelength of a knot.
Denne, Elizabeth, Diao, Yuanan, Sullivan, John M. (2006)
Geometry & Topology
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Coherent and strong expansions of spaces coincide
Sibe Mardešić (1998)
Fundamenta Mathematicae
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In the existing literature there are several constructions of the strong shape category of topological spaces. In the one due to Yu. T. Lisitsa and S. Mardešić [LM1-3] an essential role is played by coherent polyhedral (ANR) expansions of spaces. Such expansions always exist, because every space admits a polyhedral resolution, resolutions are strong expansions and strong expansions are always coherent. The purpose of this paper is to prove that conversely, every coherent polyhedral (ANR)...
Lefschetz coincidence formula on non-orientable manifolds
Daciberg Gonçalves, Jerzy Jezierski (1997)
Fundamenta Mathematicae
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We generalize the Lefschetz coincidence theorem to non-oriented manifolds. We use (co-) homology groups with local coefficients. This generalization requires the assumption that one of the considered maps is orientation true.
Classes of polynomials having only one non-cyclotomic irreducible factor
A. Borisov, M. Filaseta, T. Y. Lam, O. Trifonov (1999)
Acta Arithmetica
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