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Block Toeplitz operators with rational symbols and discrete singular systems
(University of the Western Cape, 2001)
This thesis concerns block Toeplitz operators (equations). Consider the block
Toeplitz operator T = [<I> k-j ]k,j=O' where the <I>k are complex m x m matrices such
that
00
(0.1)
v=-oo
The norm in (0.1) is the usual ...
The determination of diffracted wave fields by an annulus according to Braunbek’s method
(University of the Western Cape, 1981)
In this thesis a short wave approximation, the method oI
W Braunbek, is used to determine the diffracted fields
(acoustic and electromagnetic) of plane harmonic waves by
an annular aperture.
Integral representations ...
Character tables of some groups of extension type
(University of the Western Cape, 2002)
The main aim of this mini-thesis is to give a description of some of the basic methods and techniques
that have been developed to calculate the character tables of groups of extension type. We restrict
our attention to ...