Hilbert Basis
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Aritmetizando la geometría desde dentro: el cálculo de segmentos de David Hilbert
On the basis of a set of unpublished notes for lecture courses on geometry, the paper seeks to contextualize and analyze one of the most important and original contributions of David Hilbert's celebrated monograph Foundations of Geometry (1899), namely its arithmetic of line segments (Streckenrechnungen). It is argued that Hilbert attributed to his arithmeti
Sci. stud.. Publicado em: 2015-03
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2. Computação evolutiva na resolução de equações diferenciais ordinárias não lineares no espaço de Hilbert. / Evolutive computation in the resolution of non-linear ordiinary diferential equations in the Hilbert space.
This thesis shows a new method to get polynomial solutions to the initial value problems (IVP), with an error margin comparable to the consecrate numerical methods (NM), for both the function and its derivatives. The method works with differential equations (DEs) linear or not, beeing the developed tolls available until 4th order, whose can be expanded to hi
Publicado em: 2009
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3. Algebraic methods for the computation of general reversible-equivariant mappings / Métodos algébricos para a obtenção de formas gerais reversíveis-equivariantes
In the global and local analysis of dynamical systems, we assume, in general, that the equations are in a normal form. In presence of symmetries, the equations and the problem domain are invariant under the group formed by these symmetries; in that case, the vector field is equivariant by the action of this group. When, in addition to the symmetries, we have
Publicado em: 2009
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4. Bases de Hilbert / Hilbert Basis
There are several min-max relations in combinatorial optimization that can be proved through total dual integrality of linear systems. The algebraic concept of Hilbert basis was originally introduced with the objective of better understanding the general structure of totally dual integral systems. Some results that were proved later have shown that Hilbert b
Publicado em: 2007
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5. Representação e combinação de logicas : questões conceituais / Representatain and combination of logics : conceptual questions
Visando a atingir um esclarecimento sobre os conceitos fundamentais envolvidos no estudo das combinações entre lógicas, empreendemos uma alise do problema da representação geral de sistemas lógicos (com ênfase no conceito central de conseqüência lógica), juntamente com o do estabelecimento de uma noção apropriada de tradução ou morfismo entre o
Publicado em: 2007
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6. ANÁLISE DE VIBRAÇÕES DE SISTEMAS LINEARES E NÃO-LINEARES NO CONTEXTO DA FORMULAÇÃO FRACA, ANÁLISE MODAL E DECOMPOSIÇÃO DE KARHUNEN-LOÈVE / VIBRATION ANALYSIS OF LINEAR AND NON-LINEAR SYSTEMS IN THE CONTEXT OF WEAK-FORMULATION, MODAL ANALYSIS AND KARHUNEN-LOÈVEN BASIS
Vibration Analysis is treated in the context of weak formulation. A continuous system is formulated in the Hilbert space and one base is selected to project the dynamics. An approximation scheme is guaranteed by increasing the number of functions in the base used to represent the response. This is the idea behind methods like the Finite Element Method and As
Publicado em: 2005
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7. Isometria entre espaços de Wiener abstratos
In this monograph we construct an isomorphism of abstract Wiener space (A WS) between the canonical Wiener space given by the trajectories of the Brownian motion (i, BeM, Co[O,I]) and the A WS (i, lz, V) defined over a normed vector space given by a subset ofthe space ofsequences ofreal numbers. Moreover, we present a generalization of Paul Levy s Wiener mea
Publicado em: 2001
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8. Supersymmetric Hilbert space.
A generalization is given of the notion of a symmetric bilinear form over a vector space, which includes variables of positive and negative signature ("supersymmetric variables"). It is shown that this structure is substantially isomorphic to the exterior algebra of a vector space. A supersymmetric extension of the second fundamental theorem of invariant the
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9. Self-adjointness of the Fourier expansion of quantized interaction field Lagrangians
Regularity properties significantly stronger than were previously known are developed for four-dimensional non-linear conformally invariant quantized fields. The Fourier coefficients of the interaction Lagrangian in the interaction representation—i.e., evaluated after substitution of the associated quantized free field—is a densely defined operator on th
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10. The Black–Scholes pricing formula in the quantum context
A natural explanation for extreme irregularities in the evolution of prices in financial markets is provided by quantum effects. The lack of simultaneous observability of relevant variables and the interference of attempted observation with the values of these variables represent such effects. These characteristics have been noted by traders and economists a
The National Academy of Sciences.