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Mostrando ítems 61-70 de 169
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The path-variance problem on tree networks
(Elsevier, 2004)
Extensive facility location models on graphs deal with the location of a special type of subgraphs such as paths, trees or cycles and can be considered as extensions of classical point location models. Variance is one of ...
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Recent advances on Tsagas-Sourlas-Santilli isotopology
(Kyungnam University Press, 2005)
Because the Lie Theory solely applies to linear systems, in 1978 Santilli proposed the isotopic lifting of Lie’s theory for nonlinear systems, today known as the Lie-Santilli isotheory, via the reconstruction of linearity ...
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A new condition for identifiability of finite mixture distributions
(Springer, 2006)
In this paper a sufficient condition for the identifiability of finite mixtures is given. This condition is less restrictive than Teicher’s condition (Teicher H, Ann Math Stat 34:1265–1269 (1963)) and therefore it can ...
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Uniformly Summing Sets of Operators on Spaces of Continuous Functions
(Hindawi, 2004)
Let X and Y be Banach spaces. A set ℳ of 1-summing operators from X into Y is said to be uniformly summing if the following holds: given a weakly 1-summing sequence (xn) in X, the series ∑n‖Txn‖ is uniformly convergent in ...
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Some properties and applications of equicompact sets of operators
(Polskiej Akademii Nauk, Instytut Matematyczny, 2007)
Let X and Y be Banach spaces. A subset M of K(X,Y ) (the vector space of all compact operators from X into Y endowed with the operator norm) is said to be equicompact if every bounded sequence (xn) in X has a subsequence ...
Artículo
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The convolution theorem for the continuous wavelet tranform
(Elsevier, 2004)
We study the application of the continuous wavelet transform to perform signal 1ltering processes. We 1rst show that the convolution and correlation of two wavelet functions satisfy the required admissibility and regularity ...
Artículo
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On the consistency of MLE in finite mixture models of exponential families
(Elsevier, 2007)
Finite mixtures of densities from an exponential family are frequently used in the statistical analysis of data. Modelling by finite mixtures of densities from different exponential families provide more flexibility in ...
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Equations, inequations and inequalities characterizing the configurations of two real projective conics
(Springer, 2007)
Couples of proper, non-empty real projective conics can be classified modulo rigid isotopy and ambient isotopy. We characterize the classes by equations, inequations and inequalities in the coefficients of the quadratic ...
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Extremal K-(s,K-t)-free bipartite graphs
(Association DMTCS, 2008)
In this paper new exact values of the Zarankiewicz function z(m, n; s, t) are obtained assuming certain requirements on the parameters. Moreover, all the corresponding extremal graphs are characterized. Finally, an extension ...
Artículo
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Entanglement in eight-qubit graph states
(Elsevier, 2009)
Any 8-qubit graph state belongs to one of the 101 equivalence classes under local unitary operations within the Clifford group. For each of these classes we obtain a representative which requires the minimum number of ...