Product of parabolic cylinder functions involving Laplace transforms of confluent hypergeometric functions

Abstract

In this paper, the product of parabolic cylinder functions $D_{\nu }(\pm z)D_{\nu +\mu -1}(z)$, with different parameters $\mu$ and $\nu$, are established in terms of Laplace and Fourier transforms of Kummer's confluent hypergeometric functions. The provided integral representations are transformed to easily yield Nicholson-type integral forms and used to derive other series expansions for products of parabolic cylinder functions.

15 pages

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