Displaying similar documents to “The dilatation invariant in the homotopy of spheres.”

Coincidence free pairs of maps

Ulrich Koschorke (2006)

Archivum Mathematicum

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This paper centers around two basic problems of topological coincidence theory. First, try to measure (with the help of Nielsen and minimum numbers) how far a given pair of maps is from being loose, i.e. from being homotopic to a pair of coincidence free maps. Secondly, describe the set of loose pairs of homotopy classes. We give a brief (and necessarily very incomplete) survey of some old and new advances concerning the first problem. Then we attack the second problem mainly in the...

Some properties of the jacobian sn z function.

István Fenyö (1985)

Stochastica

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Using some results of the theory of functional equations we deduce some properties of the Jacobian sn z function which seem to be new. Some functional equations have also been found which are fulfilled by the sn z function which the author did not find in the literature.