Relatórios de Pesquisa

41/1998 Incomplete decomposition algorithms for discrete dynamic nonlinear models
N. Krejic, Véra L. R. Lopes, José Mario Martínez, R. Pérez
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40/1998 The Dirac-Hestenes Lagrangian
Stefano De Leo, Zbigniew Oziewicz, Waldyr A. Rodrigues Jr., Jayme Vaz Jr.

We discuss the variational principle within Quantum Mechanics in terms of the noncommutative even Space Time sub-Algebra, the Clifford $\Ra$-algebra $Cl_{1,3}^+$. A fundamental ingredient, in our multivectorial algebraic formulation, is the adoption of a $\D $-complex geometry, $\D \equiv \mbox{span}_{\RR} \{ 1,\gamma_{21} \}$, $\gamma_{21} \in Cl_{1,3}^+$. We derive the Lagrangian for the Dirac-Hestenes equation and show that such Lagrangian must be mapped on $\D \otimes {\cal F}$, where $\cal F$ denotes an $\Ra$-algebra of functions.


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39/1998 Métodos Estabilizados de Elementos Finitos
Márcio Rodolfo Fernandes, Petrônio Pulino
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38/1998 Quasilinear Dirichlet problems in RN with critical growth
Elves A. B. Silva, Sérgio H. M. Soares
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37/1998 Liouville-Gelfand type problems for the N-Laplacian on bounded domains of IRᶰ
Elves A. B. Silva, Sérgio H. M. Soares
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36/1998 0
Waldyr A. Rodrigues Jr.
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35/1998 Hermitian structures on flag manifolds
Xiaohuan Mo, Caio J. C. Negreiros
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34/1998 Fisher information and alpha-connections for a class of tranformational models
Marco A. N. Fernandes, Luiz A. B. San Martin
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33/1998 Semiparametric Density Estimation via Basis Functions
Ronaldo Dias
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32/1998 A spectral conjugate gradient method for unconstrained optimization
Ernesto G. Birgin, José Mario Martínez
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