Abstract:
Approximations of the image and integral funnel of a closed ball of the space Lp, p>1,
under a Urysohn-type integral operator are considered.
A closed ball of the space Lp, p>1, is replaced by a set consisting of a finite number
of piecewise constant functions, and it is proved that, for appropriate discretization parameters, the images of these
piecewise constant functions form an internal approximation of the image of the closed ball.
This result is applied to approximate
the integral funnel of a closed ball of the space Lp, p>1,
under a Urysohn-type integral operator
by a set consisting of a finite number of points.
Keywords:
Urysohn integral operator, image of Lp ball, integral funnel, approximation, input-output system.
Citation:
A. Huseyin, N. Huseyin, Kh. G. Guseinov, “Approximations of the Images and Integral Funnels of the Lp Balls under a Urysohn-Type Integral Operator”, Funktsional. Anal. i Prilozhen., 56:4 (2022), 43–58; Funct. Anal. Appl., 56:4 (2022), 269–281