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Invariance of a Shift-Invariant Space in Several Variables
(Springer, 2011-12)
In this article we study invariance properties of shift-invariant spaces in higher dimensions. We state and prove several necessary and sufficient conditions for a shift-invariant space to be invariant under a given closed ...
States with equivalent supports
(Theta Foundation, 2005-12)
Let B be a von Neumann algebra and X a C* Hilbert B-module. If p ∈ B is a projection, denote by S_p(X) ={x ∈ X(x,x) =p}, the p-sphere of X. For φ a state of B with support p ∈ B and x ∈ S_p(X), consider the state φ_x of ...
Quantum state space dimension as a quantum resource
(World Scientific, 2015)
Exact Maximum Likelihood and Bayesian Estimation of the Stochastic Volatility ModelExact Maximum Likelihood and Bayesian Estimation of the Stochastic Volatility Model
(Sociedade Brasileira de Econometria, 2003)
Some features of the state-space trajectories followed by robust entangled four-qubit states during decoherence
(World Scientific, 2010-04)
In a recent work (Borras et al., Phys. Rev. A 79 (2009) 022108), we have determined, for various decoherence channels, four-qubit initial states exhibiting the most robust possible entanglement. Here, we explore some ...
Estimating Brazilian Monthly GDP: a State-Space Approach
(EGV EPGE, 2016)
Estimating Brazilian Monthly GDP: a State-Space Approach
(EGV EPGE, 2016)
A discussion on the natural domain of Radial Toeplitz operators in Segal-Bargmann space
(Academic Publications, Ltd., 2012-03)
We discuss the domain of Toeplitz operators with radial symbols in the Segal-Bargmann space: we point out and correct missleading staments in previous works, establishing the conditions under which a given Toeplitz operator ...
Hypercyclic convolution operators on Fréchet spaces of analytic functions
(Academic Press Inc Elsevier Science, 2007-12)
A result of Godefroy and Shapiro states that the convolution operators on the space of entire functions on Cn, which are not multiples of identity, are hypercyclic. Analogues of this result have appeared for some spaces ...