Results 11 to 20 of about 919,431 (267)
Revista Colombiana de Obstetricia y Ginecología, 1954 El articulo esta basado en un grupo de 98 pacientes con esterilidad primaria y secundaria sin patología organica demostrable y cuya esterilidad parece ser de origen endocrino o metabolico.
Federación Colombiana De Obstetricia y Ginecologia
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Mixed Hodge structures on character varieties of nilpotent groups [PDF]
Revista Matem\'atica Complutense, Volume 38, pages 121-148, (2025), 2021 Let R be the connected component of the identity of the variety of representations of a finitely generated nilpotent group N into a connected reductive complex affine algebraic group G. We determine the mixed Hodge structure on the representation variety R and on the character variety R//G.
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Isoperimetric inequalities and monotonicity formulas for submanifolds in warped product manifolds [PDF]
Revista Matematica Iberoamericana, Volume 34, Issue 4, pp. 1821 -
1852, 2018, 2016 In this paper we first prove some linear isoperimetric inequalities for submanifolds in the de Sitter-Schwarzschild and Reissner-Nordstrom manifolds. Moreover, the equality is attained. Next, we prove some monotonicity formulas for submanifolds with bounded mean curvature vector in warped product manifolds and, as consequences, we give lower bound ...
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Closed G$_2$-structures on non-solvable Lie groups [PDF]
Revista Matem\'atica Complutense, Vol. 32, pp. 837-851 (2019), 2017 We investigate the existence of left-invariant closed G$_2$-structures on seven-dimensional non-solvable Lie groups, providing the first examples of this type. When the Lie algebra has trivial Levi decomposition, we show that such a structure exists only when the semisimple part is isomorphic to $\mathfrak{sl}(2,\mathbb{R})$ and the radical is ...
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Revista Brasileira de Arbitragem, 2005 A revista Belga de direito comparado contém cerca de cem páginas compreendendo uma homenagem ao professor holandês egrande intemacionalista que foi E . M . Meijers além de artigos de direito comercial, social e conflitos de leis.
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Dynamics of shift operators on non-metrizable sequence spaces [PDF]
Revista Matem\'atica Iberoamericana, Volume 37, Issue 6, 2021,
pages 2373-2397, 2019 We investigate dynamical properties such as topological transitivity, (sequential) hypercyclicity, and chaos for backward shift operators associated to a Schauder basis on LF-spaces. As an application, we characterize these dynamical properties for weighted generalized backward shifts on K\"othe coechelon sequence spaces $k_p((v^{(m)})_{m\in\mathbb{N}})
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On the exit time from a cone for random walks with drift [PDF]
Revista Matem\'atica Iberoamericana 32 (2016) 511-532, 2013 We compute the exponential decay of the probability that a given multi-dimensional random walk stays in a convex cone up to time $n$, as $n$ goes to infinity. We show that the latter equals the minimum, on the dual cone, of the Laplace transform of the random walk increments.
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A weak comparison principle in tubular neighbourhoods of embedded manifolds [PDF]
Revista Matem\'atica Iberoamericana 36, issue 2 (2020), 319-340, 2018 We study weak solutions to degenerate quasilinear elliptic equations, involving first order terms, in unbounded tubular domains. In particular we show that, under suitable hypotheses, the weak comparison principle holds if the domain is narrow enough.
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