Topology of Sobolev mappings

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Abstract

This paper addresses some topological and analytical issues concerning Sobolev mappings between compact Riemannian manifolds. Among the results we obtained are unified proofs of various generalizations of results obtained in a recent work of Brezis and Li. In particular we solved two conjectures in [BL]. We also give a topological obstruction for the weak sequential density of smooth maps in a given Sobolev mapping space. Finally we show a necessary and sufficient topological condition under which the smooth maps are strongly dense in the Sobolev spaces. The earlier result, Theorem 1 of [B2], was shown to be not correct.

Original languageEnglish (US)
Pages (from-to)321-330
Number of pages10
JournalMathematical Research Letters
Volume8
Issue number3
DOIs
StatePublished - 2001

ASJC Scopus subject areas

  • Mathematics(all)

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