Results 61 to 70 of about 732,831 (345)

A Proposed Stochastic Finite Difference Approach Based on Homogenous Chaos Expansion

Journal of Applied Mathematics, 2013
This paper proposes a stochastic finite difference approach, based on homogenous chaos expansion (SFDHC). The said approach can handle time dependent nonlinear as well as linear systems with deterministic or stochastic initial and boundary conditions. In
O. H. Galal
doaj   +1 more source

AAPM Task Group No. 249.B—Essentials and guidelines for clinical medical physics residency training program

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract The establishment of guidelines and curriculum standards for medical physics residency training is a critical component of setting expectations and competencies for the profession. Since the last publication of these standards, residency training has become integrated into the eligibility criteria for most medical physics certification bodies.
Jonathon A. Nye, Joseph P. Dugas, William D. Erwin, David P. Gierga, Darryl G. Kaurin, Stephanie M. Leon, Ho‐Ling Anthony Liu, Zheng Feng Lu, Alphonso W. Magri, Lynn N. Rill, Leah K. Schubert, Beth A. Schueler, Irina Vergalasova, John Vetter, Brian D. Wichman, Amy Shu‐Jung Yu, Dandan Zheng   +16 more
wiley   +1 more source

Existence theorems for a nonlinear second-order distributional differential equation

Journal of King Saud University: Science, 2018
In this work, we are concerned with existence of solutions for a nonlinear second-order distributional differential equation, which contains measure differential equations and stochastic differential equations as special cases.
Wei Liu, Guoju Ye, Dafang Zhao, Delfim F.M. Torres   +3 more
doaj  

Existence and Uniqueness of a Fractional Fokker-Planck Equation [PDF]

arXiv, 2020
Stochastic differential equations with Levy motion arise the mathematical models for various phenomenon in geophysical and biochemical sciences. The Fokker Planck equation for such a stochastic differential equations is a nonlocal partial differential equations. We prove the existence and uniqueness of the weak solution for this equation.
arxiv  

Well-posedness and Ulam-Hyers stability results of solutions to pantograph fractional stochastic differential equations in the sense of conformable derivatives

AIMS Mathematics
One kind of stochastic delay differential equation in which the delay term is dependent on a proportion of the current time is the pantograph stochastic differential equation.
Wedad Albalawi, Muhammad Imran Liaqat , Fahim Ud Din, Kottakkaran Sooppy Nisar, Abdel-Haleem Abdel-Aty   +4 more
doaj   +1 more source

On a problem of dynamical input reconstruction for a system of special type under conditions of uncertainty

AIMS Mathematics, 2020
From the viewpoint of the approach of the theory of dynamic inversion, an input reconstruction problem in a differential system of special type is under investigation.
Valeriy Rozenberg
doaj   +1 more source

On Zero-Sum Stochastic Differential Games [PDF]

, 2012
We generalize the results of Fleming and Souganidis (1989) on zero sum stochastic differential games to the case when the controls are unbounded. We do this by proving a dynamic programming principle using a covering argument instead of relying on a ...
Bayraktar, Erhan, Yao, Song
core  

On a stochastic differential equation arising in a price impact model

, 2012
We provide sufficient conditions for the existence and uniqueness of solutions to a stochastic differential equation which arises in a price impact model.
Dmitry Kramkov, Karatzas, Krylov, Kunita, Nualart, Peter Bank, Sznitman   +6 more
core   +1 more source

Random attractors for locally monotone stochastic partial differential equations [PDF]

J. Differential Equations 269 (2020), 3414-3455, 2019
We prove the existence of random dynamical systems and random attractors for a large class of locally monotone stochastic partial differential equations perturbed by additive L\'{e}vy noise. The main result is applicable to various types of SPDE such as stochastic Burgers type equations, stochastic 2D Navier-Stokes equations, the stochastic 3D Leray ...
arxiv  

Random Learning Leads to Faster Convergence in ‘Model‐Free’ ILC: With Application to MIMO Feedforward in Industrial Printing

International Journal of Adaptive Control and Signal Processing, EarlyView.
The cost as a function of the number of experiments for a non‐symmetric 21×21$$ 21\times 21 $$ system. Four approaches are shown: the proposed stochastic conjugate gradient ILC (SCGILC) method (), deterministic conjugate gradient ILC (), stochastic gradient descent ILC () and deterministic gradient descent ILC ().
Leontine Aarnoudse, Tom Oomen
wiley   +1 more source