## Search

Now showing items 31-40 of 81

#### 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 ...

#### Economic evaluation of management strategies for cattle ranching in semi-arid regions.

(2001)

Arid and semi-arid regions have increasingly become the subject of much research
and debate by scientists. By their very nature, these regions characteristically
exhibit extremes which complicate the implementation of ...

#### Residually small varieties and commutator theory.

(2000)

Chapter 0
In this introductory chapter, certain notational and terminological conventions
are established and a summary given of background results that are
needed in subsequent chapters.
Chapter 1
In this ...

#### 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 ...

#### Mathematical analysis of tuberculosis vaccine models and control stategies.

(2014-10-20)

The epidemiological study of tuberculosis (TB) has been ongoing for several decades,
but the most effective control strategy is yet to be completely understood. The basic
reproduction number, R₀, has been found to be ...

#### 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 ...

#### Maths anxiety and communication apprehension as barriers to learning mathematics.

(2011)

As learners progress through the educational system their interest in mathematics
diminishes. Although mathematics is designed to challenge learners, it has produced
a high number of failures. Mathematics is most often ...

#### Mathematical attitudes and achievement strategies of successful mathematics learners.

(2011)

Too often, discussions about Mathematics express feelings of anguish and despair; and, indeed Mathematics results in general in South Africa can be described as dismal. The Department of Education (DoE) reported that in ...

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

(1995)

No abstract available.