Algebraic Univalence Theorems for Nonsmo
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M.Seetharama Gowda; G Ravindran
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Article
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2000
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Elsevier Science
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English
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Ann. 159, 81แ93 asserts that if the Jacobian matrix of a differentiable function from a closed rectangle K in R n into R n is a P-matrix at each point of K, then f is one-to-one on K. In this paper, by introducing the concepts of H-differentiabil-ลฝ . ity and H-differential of a function as a set of