Listar Análisis Matemático, Estadística e Investigación Operativa y Matematica Aplicada - (AM) por título
Mostrando ítems 131-145 de 145
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Warm-starting constraint generation for mixed-integer optimization: A Machine Learning approach
Jiménez-Cordero, María Asunción
; Morales-González, Juan Miguel; Pineda-Morente, Salvador (Elsevier, 2022-10-11)
Mixed Integer Linear Programs (MILP) are well known to be NP-hard (Non-deterministic Polynomial-time hard) problems in general. Even though pure optimization-based methods, such as constraint generation, are guaranteed to ... -
Weak and Strong Type Estimates for the Multilinear Littlewood–Paley Operators.
(Springer Nature, 2021)Let be the multilinear square function defined on the cone with aperture . In this paper, we investigate several kinds of weighted norm inequalities for . We first obtain a sharp weighted estimate in terms of aperture ... -
Weighted bilinear Hardy inequalities.
Aguilar-Cañestro, María Isabel; Ortega-Salvador, Pedro; Ramírez Torreblanca, Consuelo (Elsevier, 2012)
We characterize the weights w, w1, w2 such that the weighted bilinear Hardy inequality b a x a f q x a g q w(x)dx 1q C b a f p1w1 1 p1 b a gp2 w2 1 p2 holds for all nonnegative ... -
Weighted inequalities for Cesàro maximal operator in Orlicz spaces.
Ortega-Salvador, Pedro; Ramírez Torreblanca, Consuelo (Cambridge University Press, 2005-04-26)
Let 0 < α ≤ 1 and let M+α be the Cesàro maximal operator of order α defined by In this work we characterize the pairs of measurable, positive and locally integrable functions (u, v) for which there exists a constant C > 0 ... -
Weighted inequalities for commutators of fractional integrals on spaces of homogeneous type.
Bernardis-Medici, Ana Lucía; Hartzstein, Silvia; Pradolini, Gladis (Elsevier, 2006)
Let 0 <γ< 1, b be a BMO function and Im γ,b the commutator of order m for the fractional integral. We prove two type of weighted Lp inequalities for Im γ,b in the context of the spaces of homogeneous type. The first one ... -
Weighted inequalities for harmonic means.
Ortega-Salvador, Pedro; Ramírez Torreblanca, Consuelo (Ele-Math, 2006)
We characterize the weighted weak and strong type (p, q) inequalities for the harmonic averaging operator Tf(x) = x/∫0x 1/f in the cases 0 < p ≤ q < ∞ and 0 < q < p < ∞. -
Weighted inequalities for the one-sided geometric maximal operators.
Ortega-Salvador, Pedro; Ramírez Torreblanca, Consuelo (Wiley, 2011)
We characterize the pairs of weights (u, v) such that the one-sided geometric maximal operator G+, defined for functions f of one real variable by G+ f(x) = sup h>0 exp 1 h x+h x log |f| , verifies the ... -
Weighted Lp estimates on the infinite rooted k-ary tree.
(Springer Nature, 2021)In this paper sufficient conditions for weighted weak and strong type (p, p) estimates with for the centered maximal function on the infinite rooted k-ary tree are provided. Here the line initated by the authors and ... -
Weighted modular inequalities for Hardy-Steklov operators.
Ortega-Salvador, Pedro; Ramírez Torreblanca, Consuelo (Elsevier, 2005-10-26)
We characterize weighted modular inequalities of weak and strong type for the Hardy–Steklov operators T defined by , where g is a positive function and s, h are increasing and continuous functions such that for all x. -
Weighted weak type inequalities for modified Hardy operators and geometric means operators in dimensions one and greater.
Ortega-Salvador, Pedro; Ramírez Torreblanca, Consuelo (Elsevier, 2007-03-12)
We characterize the pairs of weights such that the geometric mean operator , defined for positive functions f on by verifies the weak type inequality in the case . Similar results are obtained for the n-dimensional ... -
Weighted weak-type iterated and bilinear Hardy inequalities
García García, V.; Ortega-Salvador, Pedro (Elsevier, 2023-03-31)
We characterize the good weights for a certain weighted weak-type iterated Hardy inequality to hold. As a consequence, we get the characterizations of some weighted weak-type bilinear Hardy inequalities. -
Words of analytic paraproducts on Hardy and weighted Bergman spaces.
Aleman, Alexandru; Casante, Carme; Fàbrega, Joan; Pascuas, Daniel; Peláez-Márquez, José Ángel (Elsevier, 2024)
For a fixed analytic function g on the unit disc, we consider the analytic paraproducts induced by g, which are formally defined by , , and . We are concerned with the study of the boundedness of operators in the algebra ...