Mostrando ítems 1-10 de 566
q-Deformed Vibron model for diatomic molecules [Artículo]
(American Physical Society, 1994-08)
A deformed version of the vibron model for diatomic molecules is constructed. Both the O(4) and U(3) dynamical symmetries of the model are rewritten, using the concept of complementary subalgebras, in a more convenient ...
Generalized asymptotic pointwise contractions and nonexpansive mappings involving orbits [Artículo]
(Springer Open, 2010)
We give fixed point results for classes of mappings that generalize pointwise contractions, asymptotic contractions, asymptotic pointwise contractions, and nonexpansive and asymptotic nonexpansive mappings. We consider the ...
New trends on nonlinear dynamics and its applications [Artículo]
(American Institute of Mathematical Sciences, 2015-12)
This paper is the Preface of a special issue devoted to Nonlinear Dynamics and Complexity generated by the contributions of participants at the conference NDC 2015, La Manga, Spain (http://ndc.lhscientificpublishing.com) ...
Sharp reverse Hölder property for A∞ weights on spaces of homogeneous type [Artículo]
In this article we present a new proof of a sharp Reverse Hölder Inequality for A∞ weights. Then we derive two applications: a precise open property of Muckenhoupt classes and, as a consequence of this last result, we ...
Complejidad de los números naturales [Artículo]
(Real Sociedad Matemática Española, 2000)
New estimates for the maximal singular integral [Artículo]
(Oxford University Press, 2010)
In this paper we pursue the study of the problem of controlling the maximal singular integral T∗ f by the singular integral T f. Here T is a smooth homogeneous Calder´on-Zygmund singular integral of convolution type. ...
Sharp weighted bounds for multilinear maximal functions and Calderón-Zygmund operators [Artículo]
In this paper we prove some sharp weighted norm inequalities for the multi(sub)linear maximal function M introduced in  A.K. Lerner, S. Ombrosi, C. Pérez, R.H. Torres and R. Trujillo-Gonz´alez, New maximal functions ...
Matrix-valued little q-Jacobi polynomials [Artículo]
Matrix-valued analogues of the little q-Jacobi polynomials are introduced and studied. For the 2×2-matrix-valued little q-Jacobi polynomials explicit expressions for the orthogonality relations, Rodrigues formula, three-term ...
Compact composition operators on Hardy-Orlicz and Bergman-Orlicz spaces [Artículo]
We construct an analytic self-map ϕ of the unit disk and an Orlicz function Ψ for which the composition operator of symbol ϕ is compact on the Hardy-Orlicz space HΨ, but not on the Bergman-Orlicz space BΨ. For that, we first ...
A local spectral condition for strong compactness with some applications to bilateral weighted shifts [Artículo]
(American Mathematical Society, 2014-01)
An algebra of bounded linear operators on a Banach space is said to be strongly compact if its unit ball is precompact in the strong operator topology, and a bounded linear operator on a Banach space is said to be strongly ...