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Coincidence theory for manifolds with boundary - MaRDI portal

Coincidence theory for manifolds with boundary (Q1191871)

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scientific article; zbMATH DE number 62951
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Coincidence theory for manifolds with boundary
scientific article; zbMATH DE number 62951

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    Coincidence theory for manifolds with boundary (English)
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    27 September 1992
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    Let \(M\) and \(N\) be compact, connected, oriented manifolds of the same dimension with boundaries \(\partial M\), \(\partial N\), respectively. Let \(F,G:M\to N\) be maps such that \(G(\partial M)\subseteq\partial N\). If the Lefschetz number, \(\Lambda(F,G)\), defined by the author, is nonzero, then \(F\) and \(G\) have a coincidence point. When both maps preserve boundary points, the author obtains, for a class of differentiable maps, a formula for the algebraic number of coincidences which lie in the interior of \(M\).
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    Lefschetz number
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    coincidence point
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