Results 81 to 90 of about 26,245 (203)

Stein estimation of Poisson process intensities

, 2007
International audienceWe construct superefficient estimators of Stein type for the intensity parameter λ > 0 of a Poisson process, using integration by parts and superharmonic functionals on the Poisson ...
Privault, Nicolas, Réveillac, Anthony
core   +1 more source

Stability of Matrix Polytopes with a Dominant Vertex and Implications for System Dynamics

Abstract and Applied Analysis, 2013
The paper considers the class of matrix polytopes with a dominant vertex and the class of uncertain dynamical systems defined in discrete time and continuous time, respectively, by such polytopes. We analyze the standard concept of stability in the sense
Octavian Pastravanu, Mihaela-Hanako Matcovschi   +1 more
doaj   +1 more source

The Stein–Strömberg covering theorem in metric spaces

Journal of Mathematical Analysis and Applications, 2017
In \cite{NaTa} Naor and Tao extended to the metric setting the $O(d \log d)$ bounds given by Stein and Strömberg for Lebesgue measure in $\mathbb{R}^d$, deriving these bounds first from a localization result, and second, from a random Vitali lemma. Here we show that the Stein-Strömberg original argument can also be adapted to the metric setting, giving
openaire   +3 more sources

A Novel NeighShrink Correction Algorithm in Image Denoising

Iranian Journal of Electrical and Electronic Engineering, 2017
Image denoising as a pre-processing stage is a used to preserve details, edges and global contrast without blurring the corrupted image. Among state-of-the-art algorithms, block shrinkage denoising is an effective and compatible method to suppress ...
E. Ehsaeyan
doaj  

IN THIS ISSUE: Food Systems Resilience

Journal of Agriculture, Food Systems, and Community Development, 2017
In this combined spring and summer issue of JAFSCD we highlight the growing interest in food systems resilience, as depicted on our cover by the design of the Hyperions project by Vincent Callebaut Architectures.
Duncan Hilchey
doaj   +1 more source

Free C+ actions on affine threefolds [PDF]

, 2005
We study algebraic actions of the additive group C+ on an affine threefold X and prove a smoothness property for the quotient morphism X -< X//C+. Then, following Shulim Kaliman, we give a proof of the conjecture that every free C+ action on affine 3 ...
Kraft, H.
core  

Orbit structure of a distinguished Stein invariant domain in the complexification of a Hermitian symmetric space

, 2014
We carry out a detailed study of \Xi^+, a distinguished G-invariant Stein domain in the complexification of an irreducible Hermitian symmetric space G/K .
IANNUZZI, ANDREA, Geatti, L, Iannuzzi, A, GEATTI, LAURA   +3 more
core   +1 more source

The Kerzman–Stein operator for piecewise continuously differentiable regions

, 2015
The Kerzman–Stein operator is the skew-hermitian part of the Cauchy operator defined with respect to an unweighted hermitian inner product on a rectifiable curve.
Bolt, Michael, Raich, Andrew
core   +1 more source

Meromorphic approximation theorem with respect to a semigroup of holomorphic line bundles in a Stein space

, 2009
application/pdf論文(Article)We give a meromorphic approximation theorem with respect to a semigroup of holomorphic line bundles in a reduced Stein space, which generalizes both Theoreme 2 of Hirschowitz (Ann. Scuola Norm. Sup.
109646, アベ, マコト, Abe, Makoto, 阿部, 誠, 158165   +4 more
core   +1 more source

Cohomologie des espaces de Stein p-adiques

, 2019
International audienceWe compute the p-adic étale and the pro-etale cohomologies of the Drinfeld half-space of any dimension. The main input is a new comparison theorem for the p-adic pro-étale cohomology of p-adic Stein spaces.On calcule les ...
Colmez, Pierre, Dospinescu, Gabriel, Niziol, Wieslawa   +2 more
core   +1 more source