The T1 Theorem
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Existence, Uniqueness, and Approximation for Solutions of a Functional-integral Equation in Lp Spaces
RESUMO Neste trabalho estabelecemos condições que garantem existência e unicidade de solução da equação integral-funcional geral y ( t ) = f ( t , ∫ 0 1 k ( t , s ) g ( s , y ( s ) ) d s ) , t ∈ [ 0 , 1 ] , em L p ( [ 0 , 1 ] ), com 1 p ∞. Utilizamos o Teorema de Ponto Fixo de Banach e aplicamos o método de aproximações sucessi
TEMA (São Carlos). Publicado em: 13/12/2019
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2. Campos localmente resolúveis, espaços de Hardy e extensão de funções CR / Campos localmente resolúveis, espaços de Hardy e extensão de funções CR
Suppose that M is a smooth submanifold of CN and that L = ∪z∈CnLz is the Cauchy- Riemann structure associated to the N-dimensional complex space. For each p ∈ M we can consider the vector space Ap = CTpM ∩ Lp. If the reunion of those fibers originates a locally integrable structure, then we are going to say that M is a CR submanifold
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/05/2012
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3. Involuções fixando muitas componentes e melhorias para o 5/2-Teorema de J. Boardman
Let (Mm; T) be a smooth involution on a closed smooth m-dimensional manifold and F = n [j=0 Fj (n
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/03/2012
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4. Ideais de anéis de operadores diferenciais / Ideals of rings of differential operators
In [12] J.T. Stafford proved that every left or right ideal of the Weyl algebra \ A IND. n\ (K) = K[\ x IND. 1\ , ...\ x IND. n\ ](\ partial IND. 1, ...\ partial IND. n\ )(K a field of characteristic zero) is generated by two elements. Consider the ring \ D IND. n\ := K[[\ x IND. 1\ , ...\ x IND.n\ ]](\ partial IND. 1\", ...\ partial IND. n) of differential
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/04/2011
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5. Operadores de Calderón-Zygmund e o teorema T1
In this work, we present necessary and suficient conditions for that an operator of Calderón-Zygmund type can be extended to a bounded operator on L2. By using results of interpolation and cancellation conditions on the kernel to obtain the boundeness in Lp, for all 1
Publicado em: 2009
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6. Identidades polinomiais em algebras T-primas / Polynomial identities in T-prime algebras
In this work we study tensor products of T-prime T-ideals over infinite fields. The behaviour of these tensor products over a field of characteristic zero was described by Kemer. First we show, using methods due to Regev, that such a description holds if one restricts oneself to multilinear polynomials only. Second, applying graded polynomial identities, we
Publicado em: 2005
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7. Identidades polinomiais em algebras T-primas / Polynomial identities in T-prime algebras
In this work we study tensor products of T-prime T-ideals over infinite fields. The behaviour of these tensor products over a field of characteristic zero was described by Kemer. First we show, using methods due to Regev, that such a description holds if one restricts oneself to multilinear polynomials only. Second, applying graded polynomial identities, we
Publicado em: 2005
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8. Comportamento de um autÃmato celular sem e com ruÃdo aleatÃrio
Elements of f0; : : : ;mgZd are called configurations. We work with cellular automata, which can be presented as FrD , where Fr is a random operator which acts on measures on the set of configurations and D is a deterministc operator which acts on configurations. Fr increases state of every point in ZZd with probability r >0 independently and D is a uniform
Publicado em: 2004
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9. REPRESENTATIONS OF TRIANGLE GROUPS IN COMPLEX HYPERBOLIC / REPRESENTAÇÕES DE GRUPOS TRIANGULARES EM GEOMETRIA HIPERBÓLICA COMPLEXA
The main aim of this work is to study type-preserving representations p: gamma PU(2, 1) of triangle groups _ in the group of holomorphic isometries of the twodimensional complex hyperbolic space H2C. The triangle group gamma(p, q, r) is the group generated by reflections in the sides of a geodesic triangle having angles pi/p, pi/q and pi/r. We focus our atte
Publicado em: 2003
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10. Variedades riemannianas abertas : rigidez das fronteiras ideais e geometria das variedades com curvatura minimal radial assintoticamente não negativa
In this Thesis we present two results, basically: (1) The construction on R8, of a metric g, of nonnegative Ricci curvature Ricg ? 0, such that the open manifold (R8,g) has Ideal Boundaries of different dimensions (differing, in this sense, from the manifolds of nonnegative sectional curvature K ? O); (2) We study a class of pointed open Riemannian manifolds
Publicado em: 2001
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11. Bounds for a joint distribution function with fixed sub-distribution functions: Application to competing risks
This paper gives sharp bounds for the joint survival function G(t1, t2,...,tr) ≡ P(X1 > t1, X2 > t2,...,Xr > tr), and for the marginal survival functions Sj(t) ≡ P(Xj > t), j = 1,2,...,r, when the sub-survival functions Sj*(t) ≡ P(Xj > t, Xj = mink=1,2,...,rXk) are fixed. Theorem 1 gives the bounds for r = 2, and Theorem 2 gives the bounds for general
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12. Dimensionless invariants from foraging theory's marginal value theorem.
Copula duration (t) decreases, and proportional rate of sperm transfer (c) increases, with larger male body size in dung flies, so their dimensionless product (c. t) is approximately constant (approximately 2.2). The most recent copulating male fertilizes about 89% of the eggs laid (= 1 - e(-c.t) = 1 - e(-2.2)), independent of his body size. The conditions u