Using the best approximations and the theory of reproducing kernels, we will give real inversion formulas for the Weierstrass transform associated with the Kontorovich-Lebedev transform, and we will check the estimates of extremal functions.
机构:
Univ Porto, Fac Sci, Dept Pure Math, Campo Alegre St 687, P-4169007 Oporto, PortugalUniv Porto, Fac Sci, Dept Pure Math, Campo Alegre St 687, P-4169007 Oporto, Portugal