Results 241 to 250 of about 599,677 (299)

Brain Amyloid Plaque Levels Affect Clinical Progression in Alzheimer Disease: Assessment of Amyloid PET and Change in CDR-SB Utilizing Semi-Mechanistic Model. [PDF]

CPT Pharmacometrics Syst Pharmacol
Bhagunde P, Penner N, Willis BA, Bell R, Charil A, Irizarry MC, Hersch S, Reyderman L.   +7 more
europepmc   +1 more source

Research on the optimization design of gradient ceramic cutting tools based on thermomechanical coupling mechanism. [PDF]

Sci Prog
Zhu G, Wang G, He X.
europepmc   +1 more source

Stability of stochastic difference equations with multiplicative and additive fading noise

Journal of Difference Equations and Applications
In this paper, the effects of multiplicative and additive fading stochastic perturbations on the solutions of stochastic difference equations are studied, in which the strength of fading stochastic perturbations is square summable.
Wenli Wang, Peiguang Wang, Fang Li
semanticscholar   +3 more sources

Difference methods for stochastic space fractional diffusion equation driven by additive space–time white noise via Wong–Zakai approximation

Journal of Mathematical Chemistry, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Abhishek Kumar Singh, Mani Mehra
semanticscholar   +4 more sources

Continuous additive functions and difference equations of infinite order

Analysis Mathematica, 1986
This article has been reviewed together with the preceding one.
Zoltán Daróczy, Imre Kátai
semanticscholar   +3 more sources

ON NEW ADDITIVE DIFFERENCE METHOD FOR PARABOLIC EQUATIONS

Mathematical Models and Methods in Applied Sciences, 1996
A new approach is suggested to the construction of conservative difference schemes for multidimensional second-order parabolic equations containing divergent first-order differential forms. These schemes hold the property of having fixed sign for non-negative solutions. The convergence of schemes is proved in the grid norm L2 at the rate O(τ + h2).
Yu. N. Karamzin, Irina G. Zakharova
semanticscholar   +4 more sources

Joint Identifiability of Coefficients of Linear Difference Equations of Object and Additive Disturbances

Journal of Mathematical Sciences, 2017
We study the problem of parametric identification of an object described by a system of linear difference equations by a set of observations of solutions provided that there are additive deterministic disturbances in the observations. The disturbances are also described by linear difference equations of a given order with uncertain initial conditions ...
A. A. Lomov
semanticscholar   +3 more sources

Discrete-Time Semi-Markov Random Evolutions – Average and Diffusion Approximation of Difference Equations and Additive Functionals

Communications in Statistics - Theory and Methods, 2011
This article introduces discrete-time semi-Markov random evolution and studies asymptotic properties, namely, averaging and diffusion approximation by weak convergence methods. The cases considered here concern difference equations and additive functionals with application in estimation of stationary probability of semi-Markov chains.
Nikolaos Limnios
semanticscholar   +3 more sources

Highly efficient difference methods for stochastic space fractional wave equation driven by additive and multiplicative noise

Applied Mathematics Letters, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yanjiao Zhou, Jianqiang Xie, Zhiyue Zhang   +2 more
openalex   +2 more sources

Additive difference scheme for a non-stationary fourth-order equation in an arbitrary domain

USSR Computational Mathematics and Mathematical Physics, 1977
Бошко Йованович
openalex   +3 more sources