Results 81 to 90 of about 3,117,111 (256)

First-passage and extreme-value statistics of a particle subject to a constant force plus a random force

, 2008
We consider a particle which moves on the x axis and is subject to a constant force, such as gravity, plus a random force in the form of Gaussian white noise.
E. Gumbel, G. Györgyi, H. Risken, H.P. McKean, I.S. Gradshteyn, J. Galambos, J. Masoliver, J.N. Franklin, S. Chandrasekhar, S. Redner, T.W. Burkhardt, T.W. Burkhardt, T.W. Burkhardt, T.W. Marshall, Theodore W. Burkhardt, Y. Yang, Y.G. Sinai   +16 more
core   +1 more source

Preserving Spatial Patterns in Point Data: A Generalization Approach Using Agent-Based Modeling

ISPRS International Journal of Geo-Information
Visualization and interpretation of user-generated spatial content such as Volunteered Geographic Information (VGI) is challenging because it combines enormous data volume and heterogeneity with a spatial bias.
Martin Knura, Jochen Schiewe
doaj   +1 more source

Extremal higher codimension cycles on moduli spaces of curves [PDF]

, 2014
We show that certain geometrically defined higher codimension cycles are extremal in the effective cone of the moduli space $\overline{\mathcal M}_{g,n}$ of stable genus $g$ curves with $n$ ordered marked points. In particular, we prove that codimension two boundary strata are extremal and exhibit extremal boundary strata of higher codimension. We also
arxiv   +1 more source

The Extreme Points of Fusions

Our work explores fusions, the multidimensional counterparts of mean-preserving contractions and their extreme and exposed points. We reveal an elegant geometric/combinatorial structure for these objects. Of particular note is the connection between Lipschitz-exposed points (measures that are unique optimizers of Lipschitz-continuous objectives) and ...
Kleiner, Andreas, Moldovanu, Benny, Strack, Philipp, Whitmeyer, Mark   +3 more
openaire   +2 more sources

Extreme points and support points of conformal mappings

Open Mathematics, 2019
Abstract There are three types of results in this paper. The first, extending a representation theorem on a conformal mapping that omits two values of equal modulus. This was due to Brickman and Wilken. They constructed a representation as a convex combination with two terms.
openaire   +4 more sources

The Properties of Average Gradient in Local Region [PDF]

arXiv, 2019
This paper studies the average gradient over the local region of a function and constructs the homogenization function of a function. It is found that there are some good properties about the local extreme points and the global extreme points of the function.
arxiv  

Extreme contractions on finite-dimensional polygonal Banach spaces

, 2019
We explore extreme contractions between finite-dimensional polygonal Banach spaces, from the point of view of attainment of norm of a linear operator. We prove that if $ X $ is an $ n- $dimensional polygonal Banach space and $ Y $ is any Banach space and
Paul, Kallol, Ray, Anubhab, Sain, Debmalya   +2 more
core  

Constructive approximation in de Branges-Rovnyak spaces

, 2015
In most classical holomorphic function spaces on the unit disk, a function $f$ can be approximated in the norm of the space by its dilates $f\_r(z):=f(rz)~(r \textless{} 1)$.
El-Fallah, O., Fricain, E., Kellay, K., Mashreghi, J., Tom, Ransford   +4 more
core   +2 more sources

On Extreme Points of Subordination Families [PDF]

Proceedings of the American Mathematical Society, 1983
Let F F be the set of analytic functions in U = { z : | z | > 1 } U = \{ z:|z| > 1\} subordinate to a univalent function f f . Let D = f ( U )
openaire   +2 more sources

Forecasting the Carbon Price Using Extreme-Point Symmetric Mode Decomposition and Extreme Learning Machine Optimized by the Grey Wolf Optimizer Algorithm

Energies, 2019
Due to the nonlinear and non-stationary characteristics of the carbon price, it is difficult to predict the carbon price accurately. This paper proposes a new novel hybrid model for carbon price prediction. The proposed model consists of an extreme-point
Jianguo Zhou, Xuejing Huo, Xiaolei Xu, Yushuo Li   +3 more
doaj   +1 more source