Laguerre expansions on conic domains
arXiv:2103.04427
Abstract
We study the Fourier orthogonal expansions with respect to the Laguerre type weigh functions on the conic surface of revolution and the domain bounded by such a surface. The main results include a closed form formula for the reproducing kernels, which is the kernel of the orthogonal projection operator and a pseudo convolution structure on the conic domain; the latter is shown to be bounded in an appropriate space and used to study mean convergence of the Cesàro means of the Laguerre expansions on conic domains.