Results 21 to 30 of about 4,507 (93)

Examples of compact Einstein four-manifolds with negative curvature

, 2020
We give new examples of compact, negatively curved Einstein manifolds of dimension $4$. These are seemingly the first such examples which are not locally homogeneous.
Fine, Joel, Premoselli, Bruno
core  

Systematic approach to nonlinear filtering associated with aggregation operators. Part 2. Frechet MIMO-filters [PDF]

, 2017
Median filtering has been widely used in scalar-valued image processing as an edge preserving operation. The basic idea is that the pixel value is replaced by the median of the pixels contained in a window around it.
Labunets, V. G., Osthaimer, E
core  

Finite-Sample Analysis of Fixed-k Nearest Neighbor Density Functional Estimators

, 2016
We provide finite-sample analysis of a general framework for using k-nearest neighbor statistics to estimate functionals of a nonparametric continuous probability density, including entropies and divergences.
Póczos, Barnabás, Singh, Shashank
core  

Fractal Weyl law for the Ruelle spectrum of Anosov flows

, 2019
On a closed manifold $M$, we consider a smooth vector field $X$ that generates an Anosov flow. Let $V\in C^{\infty}\left(M;\mathbb{R}\right)$ be a smooth potential function.
Faure, Frédéric, Tsujii, Masato
core  

Uniformly bounded set-valued Nemytskij operators acting between generalized Hölder function spaces

Open Mathematics, 2012
Matkowski Janusz, Wróbel Małgorzata
doaj   +1 more source

Variational structures for the Fokker-Planck equation with general Dirichlet boundary conditions. [PDF]

Calc Var Partial Differ Equ
Quattrocchi F.
europepmc   +1 more source

Underlying Geometric Flow in Hamiltonian Evolution. [PDF]

Entropy (Basel)
Elgressy G, Horwitz L.
europepmc   +1 more source

Fast sensorless collision detection for resource-constrained pmsm controllers using an FFRLS-based method. [PDF]

Sci Rep
Zhao D, Ren T, Huang G, Liu M.
europepmc   +1 more source

Ricci curvature bounds and rigidity for non-smooth Riemannian and semi-Riemannian metrics. [PDF]

Manuscr Math
Kunzinger M, Ohanyan A, Vardabasso A.
europepmc   +1 more source

Adaptive low-light image enhancement using Interval-Valued Intuitionistic Fuzzy Set optimized by Reptile Search Algorithm. [PDF]

Front Artif Intell
Yogambaram H, Sivabalakrishnan M, Balaji S.   +2 more
europepmc   +1 more source