Infinite Groups
Mostrando 13-24 de 35 artigos, teses e dissertações.
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13. Multiple comparison for binomial parameters using bootstrap / ComparaÃÃes mÃltiplas para parÃmetros binomiais utilizando bootstrap
The multiple comparisons methods and the analysis of variance are not reliable alternatives for comparing two or more binomial proportions, when the experiments have only Bernoulli trails. Although, this comparison can be made using the intensive computational techniques named infinite bootstrap. This work aimed to evaluate the performance of two binomial pr
Publicado em: 2006
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14. Alguns aspectos da geometria riemanniana das variedades de Hilbert
The aim of this work is to formalize the local theory of infinite dimensional Riemannian manifold and to study the geometry/ topology when the sectional curvature is bounded by two positive constant. We compare this situation with the finite dimensional case and emphasize the difference. The local theory was already developed since 1960, so we describe, brie
Publicado em: 2002
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15. A maravilha mutante : batuque, sampler e pop no Recife dos anos 90
Post-modern and pop, the artists who musically make possible a set of signs and meanings that in the contemporary break up on other languages and are inserted in the cultural dynamics with its atomized narratives that mention an infinite amount of existing dialogues everywhere in the globe. Small groups and cultures; discrete movements and manifests: grunges
Publicado em: 2002
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16. Group selection models in pre-biotic evolution / Modelos de seleção de grupo em evolução pré-biótica
Group selection was proposed initially within an ecological context as an evolutionary selective force acting on a group in the same way as the individual selection does on the individuals composing the population. Despite the initial resistance of the conservative evolutionary biologists concerning the ideas of group selection, in the last decades those con
Publicado em: 2000
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17. Spin and wedge representations of infinite-dimensional Lie algebras and groups
We suggest a purely algebraic construction of the spin representation of an infinite-dimensional orthogonal Lie algebra (sections 1 and 2) and a corresponding group (section 4). From this we deduce a construction of all level-one highest-weight representations of orthogonal affine Lie algebras in terms of creation and annihilation operators on an infinite-di
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18. TOPOLOGICAL GROUP STRUCTURES OF INFINITE SYMMETRIC GROUPS*
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19. Dedekind's η-function and the cohomology of infinite dimensional Lie algebras
We compute the cohomology of certain infinite dimensional Lie algebras which are subalgebras of Lie algebras introduced by Moody and Kac. We note a relation between our results and the cohomology of loop spaces of compact groups. Finally, we derive, by Euler-Poincaré, identities of Macdonald for powers of the Dedekind η-function.
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20. Antibodies with infinite affinity
Here we report an approach to the design and production of antibody/ligand pairs, to achieve functional affinity far greater than avidin/biotin. Using fundamental chemical principles, we have developed antibody/ligand pairs that retain the binding specificity of the antibody, but do not dissociate. Choosing a structurally characterized antibody/ligand pair a
The National Academy of Sciences.
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21. Some new singular Fourier—Stieltjes series
Singular continuous probability measures on the circle group are constructed whose Fourier-Stieltjes transforms converge to zero very rapidly and also have positive partial sums. Partial results for the line and for arbitary compact infinite Abelian groups are also obtained.
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22. Attitudes towards euthanasia.
There are an infinite variety of attitudes to euthanasia, each individual response to the concept being influenced by many factors. Consequently there is a literature on the subject ranging from the popular article to papers in specialized journals. This study, however, has taken a well defined sample of people, inviting them to answer a questionnaire which
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23. Lacunarity for Compact Groups
Let G be a compact Abelian group with character group X. A subset Δ of X is called a [unk]q set (1 < q < ∞) if for all trigonometric polynomials f = [unk]k=1n αkχk (χ1,...,χn [unk] Δ) an inequality ∥f∥q [unk] [unk]∥f∥1 obtains, where [unk] is a positive constant depending only on Δ. The subset Δ is called a Sidon set if every bounded functi
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24. Structure of the body-centered cubic phase of lipid systems
A new model is proposed for the structure of the body-centered cubic phase of lipid systems. Infinite rods of polar groups (and water) are arranged with axes parallel to the four cubic [unk]1 1 1[unk] directions. The hydrocarbon chains fill the space between the rods to form a continuous matrix. With this unified topology, the model explains satisfactorily t