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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

Numerical studies of the standard nontwist map and a renormalization group framework for breakup of invariant tori

Apte, Amit Shriram 28 August 2008 (has links)
Not available / text
52

Near grazing dynamics of piecewise linear oscillators

Ing, James January 2008 (has links)
No description available.
53

Toeplitz Jacobian matrix and nonlinear dynamical systems

葛彤, Ge, Tong. January 1996 (has links)
published_or_final_version / Civil and Structural Engineering / Doctoral / Doctor of Philosophy
54

Utility and applicability of high order TVD schemes for simulating low mach number flows /

Sbaibi, Ahmed. January 1900 (has links)
Thesis (Ph.D.)--Tufts University, 1992. / Submitted to the Dept. of Mechanical Engineering. Adviser: Vincent P. Manno. Includes bibliographical references (leaves 183-193). Access restricted to members of the Tufts University community. Also available via the World Wide Web;
55

Three-dimensional laminar and turbulent convection in separated flow

Thiruvengadam, Magesh, January 2008 (has links) (PDF)
Thesis (Ph. D.)--Missouri University of Science and Technology, 2008. / Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed August 21, 2008) Includes bibliographical references.
56

Order and disorder in visual cortex : spontaneous symmetry breaking and statistical mechanics of pattern formation in vector models of cortical development /

Thomas, Peter John. January 2000 (has links)
Thesis (Ph. D.)--University of Chicago, Dept. of Mathematics, August 2000. / Includes bibliographical references. Also available on the Internet.
57

Differential equations with state-dependent delay : global Hopf bifurcation and smoothness dependence on parameters /

Hu, Qingwen. January 2008 (has links)
Thesis (Ph.D.)--York University, 2008. Graduate Programme in Applied Mathematics. / Typescript. Includes bibliographical references (leaves 271-282). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:NR51719
58

Numerical studies of the standard nontwist map and a renormalization group framework for breakup of invariant tori

Apte, Amit Shriram, Morrison, Philip J. January 2004 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2004. / Supervisor: Philip J. Morrison. Vita. Includes bibliographical references.
59

Bifurcation problems in chaotically stirred reaction-diffusion systems

Menon, Shakti Narayana. January 2008 (has links)
Thesis (Ph. D.)--University of Sydney, 2008. / Includes graphs. Title from title screen (viewed November 28, 2008) Submitted in fulfilment of the requirements for the degree of Doctor of Philosophy to the School of Mathematics and Statistics, Faculty of Science. Includes bibliographical references. Also available in print form.
60

Emaranhamento, bifurcação e caos no modelo de Jahn-Teller E x [beta] / Entanglement, bifurcation and chaos in the Jahn-Teller E x beta

Netto, Domenique Velloso 12 August 2018 (has links)
Orientador: Kyoko Furuya / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Fisica Gleb Wataghin / Made available in DSpace on 2018-08-12T21:50:29Z (GMT). No. of bitstreams: 1 Netto_DomeniqueVelloso_M.pdf: 11311141 bytes, checksum: 3ff0f796112fbf62feb5f0de7b56c879 (MD5) Previous issue date: 2009 / Resumo: Neste trabalho realizamos para o modelo de Jahn-Teller E Ä b, que descreve a interação de um qubit com um modo de um oscilador, um estudo do emaranhamento e o relacionamos com a bifurcação do ponto fixo do análogo clássico do modelo. Estudamos também a incidência de caos e sua variação em função dos parâmetros do sistema. Confirmamos os indícios de que no limite massivo do oscilador (m ® ¥ ) o emaranhamento do estado fundamental do sistema como função do seu parâmetro crítico apresenta uma mudançã não suave no seu comportamento quando esse parâmetro atinge o valor crítico. Confirmamos também que para esse mesmo valor crítico o análogo clássico apresenta uma bifurcação de alguns de seus pontos fixos. Sobre a possível influência do caos no emaranhamento, pudemos observar que o aparecimento de região caótica substancial no modelo clássico ocorre quando o parâmetro crítico está nas vizinhanças do valor crítico. A análise da função de Husimi no estado fundamental nos permitiu estabelecer dois aspectos: (i) uma conexão entre a localização do máximo desta função e a localização dos pontos fixos no espaço de fase, comprovando a ocorrência da bifurcaçãco no estado quãntico nesta representação; (ii) verificar que de fato há uma aproximação do limite clássico do oscilador quando aumentamos o parâmetro do modelo associado à quebra de degenerescência das energias do sistema. / Abstract: In this work we realize a study of entanglement for the Jahn-Teller E Ä b model, wich describes the interaction of a qubit with an oscillator mode, and relate it with the bifurcation of the fixed point of the classical analogue of the model. We also study qualitatively the ocurrence of chaos and its variation as a function of the parameters of the system. We have confirmed the signs that in the massive limit of the oscillator ( m ® ¥ ) the entanglement of the fundamental state of the system presents a non-smooth change (as a function of its critical parameter) in its behavior as this parameter attains the critical value. We also confirm that at this same critical value the classical analogue presents a bifurcation of some of its fixed points. Concerning the possible influence of chaos on the entanglement, we have been able to see the appearance of a substantial chaotic region in the classical phase space when the critical parameter is in the vici-nity of its critical value. The analysis of the Husimi function in the fundamental state allowed us to establish two things: (i) a connection between the localization of the maximum of this function and the localization of the fixed points in the phase space, confirming the occurrence of the bifurcation in the quantum state in this representation; (ii) verification that in fact the classical limit of the oscillator is approached when we increase the energy degeneracy breaking parameter of the system. / Mestrado / Física / Mestre em Física

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