Strict power concavity of a convolution
Strict power concavity of a convolution
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卷积的严格幂凹性
DOI:
10.1007/s10231-021-01170-x
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Sakata Shigehiro
中科院分区:
文献类型:
--
作者:
O’Hara Jun;Sakata Shigehiro
We give a sufficient condition for the strict parabolic power concavity of the convolution in space variable of a function defined onand a function defined on. Since the strict parabolic power concavity of a function defined onnaturally implies the strict power concavity of a function defined on, our sufficient condition implies the strict power concavity of the convolution of two functions defined on. As applications, we show the strict parabolic power concavity and strict power concavity in space variable of the Gauss–Weierstrass integral and the Poisson integral for the upper half-space.
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