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Now showing items 1-10 of 11

#### Cosmological models and the deceleration parameter.

(1992)

In this thesis we utilise a form for the Hubble constant first proposed by Berman
(1983) to study a variety of cosmological models. In particular we investigate the
Robertson-Walker spacetimes, the Bianchi I spacetime, ...

#### Distances in and between graphs.

(1991)

Aspects of the fundamental concept of distance are investigated in this
dissertation. Two major topics are discussed; the first considers metrics
which give a measure of the extent to which two given graphs are removed
from ...

#### Queueing and communication networks governed by generalised Lindley-Loynes equations.

(1993)

Several decades after A.K. Erlang originated the theory of queues and queueing
networks, D.V. Lindley added impetus to the development of this field
by determining a recursive relation for waiting times.
Part I of this ...

#### Modelling the spatial dynamics of a semi-arid grazing system.

(1999)

A large proportion of the world's land surface is covered by semi-arid grasslands, and they provide an important source of income as a grazing resource. A more comprehensive understanding of these complex ecosystems is ...

#### The application of the multigrid algorithm to the solution of stiff ordinary differential equations resulting from partial differential equations.

(1992)

We wish to apply the newly developed multigrid method [14] to the solution of
ODEs resulting from the semi-discretization of time dependent PDEs by the
method of lines. In particular, we consider the general form of two ...

#### The preliminary group classification of the equation utt = f(x,ux)uxx + g(x, ux)

(1995)

We study the class of partial differential equations Utt = f(x, ux)uxx +
g(x, u x), with arbitrary functions f(x, u x) and g(x, u x), from the point of view
of group classification. The principal Lie algebra of infinitesimal ...

#### Completion of uniform and metric frames.

(1996)

The term "frame" was introduced by C H Dowker, who studied them in
a long series of joint papers with D Papert Strauss. J R Isbell , in a path breaking
paper [1972] pointed out the need to introduce separate ...

#### Closure operators on complete lattices with application to compactness.

(1995)

No abstract available.

#### Locally finite nearness frames.

(1998)

The concept of a frame was introduced in the mid-sixties by Dowker and
Papert. Since then frames have been extensively studied by several authors,
including Banaschewski, Pultr and Baboolal to mention a few. The idea of ...

#### Cosmological attractors and no-hair theorems.

(1996)

Interest in the attracting property of de Sitter space-time has grown during the 'inflationary
era' of cosmology. In this dissertation we discuss the more important attempts
to prove the so called 'cosmic no-hair conjecture' ...