Fractional calculus for power functions

preprint2011arXivOpen access

Abstract

We calculate the fractional Laplacian for functions of the form u(x)=(1−∣x∣2)+pu(x)=(1-|x|^2)_+^p and v(x)=xdu(x)v(x)=x_d u(x). As an application, we estimate the first eigenvalues of the fractional Laplacian in a ball.

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