Ghassel, Ali (1999) The radon split of radially acting linear integral operators on H2 with uniformly bounded double norms. Masters thesis, Concordia University.
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Abstract
This M.Sc. thesis treats the feasibility of the Radon Split for solving radial integral equation involving radially acting integral operator on the Hardy-Lebesgue Class [Special characters omitted.] of the half-upper plane [Special characters omitted.] . In this process, we take a scrutinizing look at [Special characters omitted.] by means of the conformal map [Special characters omitted.] taking [Special characters omitted.] . We demonstrate that [Special characters omitted.] -functions f always possess a.e. unique boundary values [Special characters omitted.] [Special characters omitted.] as [Special characters omitted.] from within [Special characters omitted.] . These boundary values are also angular limit functions in the [Special characters omitted.] -sense--i.e. [Special characters omitted.] as [Special characters omitted.] from within [Special characters omitted.] . Concomitantly, the [Special characters omitted.] -parameter family of [Special characters omitted.] -kernels [Special characters omitted.] with uniformly bounded double norms, have unique angular limit [Special characters omitted.] -kernels [Special characters omitted.] in the [Special characters omitted.] -sense--i.e. [Special characters omitted.] = [Special characters omitted.] [arrow right] 0 as [Special characters omitted.] from within [Special characters omitted.] . These properties are consequences of the inverse Mellin-Transform, which transformation originates in Fourier-Plancherel Theorem for [Special characters omitted.] and [Special characters omitted.] . Because of this Mellin-Transform representation of [Special characters omitted.] and [Special characters omitted.] we may regard [Special characters omitted.] as the three entities: [Special characters omitted.] and [Special characters omitted.] , where the first two are Hilbert spaces and the third is a dual system with [Special characters omitted.] Consequently, we look upon [Special characters omitted.] as the Banach algebra [Special characters omitted.] and further as the Hilbert space [Special characters omitted.] . We successfully construct for every radial linear integral operator K of finite rank on [Special characters omitted.] , its transpose K T in [Special characters omitted.] as well as its adjoint K * in [Special characters omitted.] , which leans heavily on the interaction of * and T in [Special characters omitted.] . We prove a necessary and sufficient condition as to when an element of [Special characters omitted.] is radially representable. And finally, we construct Fredholm Resolvents not only finite-dimensional [Special characters omitted.] but also, by means of the Radon Split, the Fredholm Resolvents of any [Special characters omitted.] and that of its transpose K T in terms of [Special characters omitted.] . Herein, the Fredholm Alternatives are induced by the derivations.
| Divisions: | Concordia University > Faculty of Arts and Science > Mathematics and Statistics |
|---|---|
| Item Type: | Thesis (Masters) |
| Authors: | Ghassel, Ali |
| Pagination: | vii, 132 leaves ; 29 cm. |
| Institution: | Concordia University |
| Degree Name: | Theses (M.Sc.) |
| Program: | Mathematics and Statistics |
| Date: | 1999 |
| Thesis Supervisor(s): | Keviczky, Attila |
| ID Code: | 1035 |
| Deposited By: | Concordia University Libraries |
| Deposited On: | 27 Aug 2009 13:16 |
| Last Modified: | 08 Dec 2010 10:18 |
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