Thesis--Bonn. Extra t.p. with thesis statement inserted. / Includes bibliographical references (p. 45).

No description available.

We produce a nonpositively curved square complex, X, containing exactly four squares. Its universal cover, X̃ ≅ T4 x T 4, is isomorphic to the product of two 4-valent trees. The group, pi1X, is a lattice in Aut (X̃) but π1X is not virtually a nontrivial product of free groups. There is no such example with fewer than four squares. The main ingredient in our analysis is that X̃ contains an "anti-torus" which is a certain aperiodically tiled plane.

Thesis (Ph.D.)--University of Nebraska-Lincoln, 2008. / Title from title screen (site viewed Dec. 15, 2008). PDF text: vi, 93 p. ; 616 K. UMI publication number: AAT 3333017. Includes bibliographical references. Also available in microfilm and microfiche formats.

Thesis (M.Sc. (Mathematics)) - Rhodes University, 2008.

Thesis (M. Sc.(Computer Science))--University of Pretoria, 2003. / Abstract in English. Includes bibliographical references .

Thesis--Bonn. Extra t. p. with thesis statement inserted. / Bibliography: p. 45.

Thesis (Ph.D.)--Hong Kong University of Science and Technology, 2007. / Includes bibliographical references (leaves 103-112). Also available in electronic version.

No description available.

Using a pseudo-bisymmetric enriched cl-premonoid as the underlying lattice, we examine different categories of lattice-valued spaces. Lattice-valued topological spaces, uniform spaces and limit spaces are described, and we produce a new definition of stratified lattice-valued uniform convergence spaces in this generalised lattice context. We show that the category of stratified L-uniform convergence spaces is topological, and that the forgetful functor preserves initial constructions for the underlying stratified L-limit space. For the case of L a complete Heyting algebra, it is shown that the category of stratified L-uniform convergence spaces is cartesian closed.