Results 81 to 90 of about 73,120 (246)
Emergence of Network Structure in Models of Collective Evolution and Evolutionary Dynamics [PDF]
We consider an evolving network of a fixed number of nodes. The allocation of edges is a dynamical stochastic process inspired by biological reproduction dynamics, namely by deleting and duplicating existing nodes and their edges.
Jensen, Henrik Jeldtot
core +4 more sources
Discrete analogues of second‐order Riesz transforms
Abstract Discrete analogues of classical operators in harmonic analysis have been widely studied, revealing deep connections with areas such as ergodic theory and analytic number theory. This line of research is commonly known as Discrete Analogues in Harmonic Analysis (DAHA).
Rodrigo Bañuelos, Daesung Kim
wiley +1 more source
A Dissipation of Relative Entropy by Diffusion Flows
Given a probability measure, we consider the diffusion flows of probability measures associated with the partial differential equation (PDE) of Fokker–Planck. Our flows of the probability measures are defined as the solution of the Fokker–Planck equation
Hiroaki Yoshida
doaj +1 more source
Abstract Observations show a bimodal frequency distribution in total column vapor (TCV) over tropical oceans, with convective rainfall predominantly produced on the moist side of the frequency minimum between two modal peaks. Here we show a km–scale model of the tropics with explicit convection produces a bimodal TCV distribution, whereas the same ...
James Bassford +3 more
wiley +1 more source
The probabilistic solutions of the elastic stretched beam are studied under the excitation of Kanai–Tajimi ground motion. Finite difference scheme is adopted to formulate the nonlinear multi-degree-of-freedom system about the random vibration of the beam.
G.-K. Er, V.P. Iu, H.-E. Du
doaj +1 more source
Rough nonlocal diffusions [PDF]
We consider a nonlinear Fokker-Planck equation driven by a deterministic rough path which describes the conditional probability of a McKean-Vlasov diffusion with "common" noise.
Coghi, Michele, Nilssen, Torstein
core +3 more sources
Abstract Field‐line curvature scattering (FLCS) is believed to be the primary mechanism forming electron isotropy boundaries (IB) and can rapidly scatter relativistic electrons from the outer radiation belt. However, its direct and quantitative impact on controlling outer belt electron lifetimes has never been directly assessed.
Man Hua +17 more
wiley +1 more source
About Fokker-Planck equation with measurable coefficients and applications to the fast diffusion equation [PDF]
The object of this paper is the uniqueness for a $d$-dimensional Fokker-Planck type equation with non-homogeneous (possibly degenerated) measurable not necessarily bounded coefficients. We provide an application to the probabilistic representation of the
Belaribi, Nadia, Russo, Francesco
core +4 more sources
Similarity solutions of Fokker-Planck equation with time-dependent coefficients
In this work, we consider the solvability of the Fokker-Planck equation with both time-dependent drift and diffusion coefficients by means of the similarity method.
Bluman +21 more
core +1 more source
Stochastic Resonance Elucidates the Emergence and Periodicity Transition of Glacial Cycles
Abstract Glacial cycles emerged with a 41‐kyr period after the Pliocene and later intensified with a 100‐kyr period in the mid‐Pleistocene, which were attributed to Earth's orbital variations. However, no significant changes in the orbital forcing were found at the two transitions, and the forcing was too small to drive these cycles. Here, a stochastic
Tian Xu, Gabriel Katul, Shineng Hu
wiley +1 more source

