Results 11 to 20 of about 428,558 (290)
Non ultracontractive heat kernel bounds by Lyapunov conditions [PDF]
Nash and Sobolev inequalities are known to be equivalent to ultracontractive properties of heat-like Markov semigroups, hence to uniform on-diagonal bounds on their kernel densities.
Bolley, François +2 more
core +3 more sources
The co-centered orthogonal loop and dipole (COLD) array exhibits some interesting properties, which makes it ubiquitous in the context of polarized source localization.
Tao Bao, Mohammed Nabil EL KORSO
doaj +1 more source
HOSVD-Based Algorithm for Weighted Tensor Completion
Matrix completion, the problem of completing missing entries in a data matrix with low-dimensional structure (such as rank), has seen many fruitful approaches and analyses.
Zehan Chao +2 more
doaj +1 more source
Weighted Nash Inequalities [PDF]
Nash or Sobolev inequalities are known to be equivalent to ultracontractive properties of Markov semigroups, hence to uniform bounds on their kernel densities.
Bakry, Dominique +3 more
core +6 more sources
Closed Sets and Operators thereon: Representations, Computability and Complexity [PDF]
The TTE approach to Computable Analysis is the study of so-called representations (encodings for continuous objects such as reals, functions, and sets) with respect to the notions of computability they induce.
Carsten Rösnick-Neugebauer
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Lower Bounds on Mutual Information [PDF]
We correct claims about lower bounds on mutual information (MI) between real-valued random variables made in A. Kraskov {\it et al.}, Phys. Rev. E {\bf 69}, 066138 (2004). We show that non-trivial lower bounds on MI in terms of linear correlations depend
David V. Foster +4 more
core +2 more sources
Sharp indistinguishability bounds from non-uniform approximations
We study the problem of distinguishing between two symmetric probability distributions over $n$ bits by observing $k$ bits of a sample, subject to the constraint that all $k-1$-wise marginal distributions of the two distributions are identical to each other. Previous works of Bogdanov et al.
openaire +4 more sources
Quantization and Compressive Sensing [PDF]
Quantization is an essential step in digitizing signals, and, therefore, an indispensable component of any modern acquisition system. This book chapter explores the interaction of quantization and compressive sensing and examines practical quantization ...
A. Ai +65 more
core +3 more sources
A novel saturated visual control strategy for nonholonomic mobile robots is presented. The principal focus is to deal with the stabilization problem. The saturation bounds for the control actions avoid exceeding the physical restrictions of the actuators.
Ricardo Perez-Alcocer +3 more
doaj +1 more source
-openness of non-uniform hyperbolic diffeomorphisms with bounded -norm [PDF]
We study the $C^{1}$-topological properties of the subset of non-uniform hyperbolic diffeomorphisms in a certain class of $C^{2}$ partially hyperbolic symplectic systems which have bounded $C^{2}$ distance to the identity. In this set, we prove the stability of non-uniform hyperbolicity as a function of the diffeomorphism and the measure, and the ...
CHAO LIANG, KARINA MARIN, JIAGANG YANG
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