ID | 110916 |
Author |
Ito, Yoshifumi
The University of Tokushima
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Keywords | Lp-calculus
Lp-function
Lp-differentiability
Lp-derivative
partial Lp-derivative
Lploc-function
Lploc-differentiability
Lploc-derivative
partial Lploc-derivative
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Content Type |
Departmental Bulletin Paper
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Description | In this paper, we define the derivative or the partial derivative of a Lp-function in the sense of Lp-convergence. We also define the derivative and the partial derivative of a Lploc-function in the sense of Lploc-convergence. Then we study their fundamental properties. Here assume that 1 ≤ p ≤ ∞ holds.
We say that the branch of analysis on the bases of the concepts of Lp-convergence and Lploc-convergence is the Lp-calculus. As the results, we have the following conclusions for the differential calculus of classical functions. Assume that 1 ≤ p ≤ ∞. Then we have the inclusion relations Lp ⊂ Lploc ⊂ L1loc. In the Lp-calculus, the derivative or the partial derivatives of a Lp-function are the derivative or the partial derivatives of the function calculated in the sense of L1loc-topology which are the Lp-functions for each p, (1 < p ≤ ∞) respectively. For Lploc-functions, we have the similar results. Especially, the L1-derivative or the partial L1-derivatives of a L1-function are the L1loc-derivative or the partial L1loc-derivatives in the above sense, respectively. But the inverse facts are not necessarily true. |
Journal Title |
Journal of Mathematics
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ISSN | 13467387
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NCID | AA11595324
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Volume | 50
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Start Page | 91
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End Page | 111
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Sort Key | 91
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Published Date | 2016
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FullText File | |
language |
eng
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TextVersion |
Publisher
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departments |
Science and Technology
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