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The Hopf boundary point lemma for vector bundle sections
Author(s) -
Artem Pulemotov
Publication year - 2008
Publication title -
commentarii mathematici helvetici
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.603
H-Index - 46
eISSN - 1420-8946
pISSN - 0010-2571
DOI - 10.4171/cmh/130
Subject(s) - mathematics , lemma (botany) , vector bundle , mathematical analysis , vector valued differential form , boundary (topology) , normal bundle , pure mathematics , invariant (physics) , frame bundle , mathematical physics , ecology , poaceae , biology
The paper establishes a version of the Hopf boundary point lemma for sections of a vector bundle over a manifold with boundary. This result may be viewed as a counterpart to the tensor maximum principle obtained by R. Hamilton in 1986. Potential applications include the study of various geometric flows and the construction of invariant sets for geometric boundary value problems.

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