Thesis--Wisconsin. / Vita. Includes bibliographical references (leaf 54).

Thesis (doctoral)--Johannes-Gutenberg-Universität, Mainz, 1983. / Description based on print version record. Includes bibliographical references.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1976. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaf [73]).

Thesis (Ph. D.)--University of Wisconsin--Madison, 1969. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Estudamos a teoria de processos de ramicação de Galton-Watson a tempo discreto e as ferramentas probabilísticas necessárias para analisa-los. Na primeira etapa, demos um tratamento básico de processos de ramicação, isto e, assumimos que as partículas são iguais e que a distribuição do número de descendentes diretos de cada partícula e sempre a mesma. Também incluímos resultados sobre o comportamento limite para os casos subcrítico, crítico e supercrítico. Posteriormente, consideramos uma generalização das características assumidas na etapa anterior, baseada em processos de Galton-Watson em meios variáveis, onde a distribuição do número de descendentes diretos de uma partícula varia de geração em geração. Estudamos e provamos teoremas limite. Finalmente, discutimos dois modelos de processos de ramificação binária com aplicações em biologia. / We study the theory of Galton-Watson branching processes at discrete time and the necessary probabilistic tools to analyze them. In the first stage, was given a basic treatment of the branching processes, that is, it was assumed that all the particles are equal and that the distribution of the number of offspring produced by a particle is always the same. Also were included some results about the asymptotic behavior for the subcritical, critical and supercritical cases. Afterwards, was considered a generalization of the characteristics assumed in the previous stage, based on Galton-Watson processes in varying environments, where the distribution of offspring produced by a particle varies from generation to generation. Were studied and proved limit theorems. Finally, were discussed two models of binary branching processes with applications in biology.

Thesis (M.S.)--Brigham Young University. Dept. of Mathematics, 2006. / Includes bibliographical references (p. 48).

Thesis (Ph.D.)--University of Delaware, 2007. / Principal faculty advisor: John D. Morgan, Dept. of Physics & Astronomy. Includes bibliographical references.

The radiative annihilation of K⁻p atoms to Λγ and ∑°γ is investigated using a non-relativistic harmonic oscillator quark model. A nonrelativistic reduction of the first order Feynman diagrams is performed to yield a gauge invariant interaction, which is sandwiched between three quark wave functions. Pseudoscalar and pseudovector coupling schemes are used for the strong vertex and the effects of SU(3)flavour breaking is explored. We obtain results which are in agreement with experiment for the ∑°γ but are somewhat high for the Λγ calculation. / Science, Faculty of / Physics and Astronomy, Department of / Graduate

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