Results 291 to 300 of about 3,086,260 (319)

Coil Sketching for Fast and Efficient 4D Lung MRI Reconstruction. [PDF]

open access: yesMagn Reson Med
Plummer JW   +7 more
europepmc   +1 more source

Approximate Sorting

Fundamenta Informaticae, 2006
We show that any comparison based, randomized algorithm to approximate any given ranking of n items within expected Spearman's footrule distance n ^{2} /ν(n) needs at least n (min{log ν(n), log n} − 6) comparisons in the worst case. This bound is tight up to a constant factor since there exists a deterministic algorithm that shows that 6n log (n ...
Giesen, Joachim   +2 more
openaire   +1 more source

Approximating Approximate Fibrations by Fibrations

Canadian Journal of Mathematics, 1977
A map p: E → B between metric spaces has the approximate homotopy lifting property with respect to the space X if given a cover Ū of B and maps g: X → E and H: X × [0, 1] → B such that H(x, 0) = pg(x) for all x ϵ X, then there exists a map G: X × [0, 1] → E such that G(x, 0) = g(x) and pGt and Ht are Ū-close for all x ϵ X and t ϵ [0, 1]; i.e. given (x,
openaire   +1 more source

Vlasov Approximation

2015
In this chapter the problem of viscous friction is considered when the medium is described by a gas of free particles in the mean field approximation.We give necessary conditions on the body/medium interaction to have a microscopic model of viscous friction and, conversely, we show that the runaway particle effect takes place in the case of bounded ...
Buttà, Paolo   +2 more
openaire   +2 more sources

Approximate Disentanglement

International Journal of Theoretical Physics, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yu, Yafei   +3 more
openaire   +2 more sources

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