Results 21 to 30 of about 201,556 (360)

Gibbs point processes on path space: existence, cluster expansion and uniqueness [PDF]

open access: yes, 2021
We present general existence and uniqueness results for marked models with pair interactions, exemplified through Gibbs point processes on path space. More precisely, we study a class of infinite-dimensional diffusions under Gibbsian interactions, in the
Zass, Alexander
core   +2 more sources

Fractional stochastic modelling of monkeypox dynamics

open access: yesResults in Control and Optimization, 2023
Monkeypox virus is primarily transferred to humans via wild animals including rodents and more often the transmission ensues between humans to humans. This disease has been neglected in the past and little effort has been made by research to study the ...
Ebenezer Bonyah   +4 more
doaj   +1 more source

Applications of new contraction mappings on existence and uniqueness results for implicit ϕ-Hilfer fractional pantograph differential equations

open access: yesJournal of Inequalities and Applications, 2021
In this paper, we consider initial value problems for two different classes of implicit ϕ -Hilfer fractional pantograph differential equations. We use different approach that is based on α − ψ $\alpha -\psi $ -contraction mappings to demonstrate the ...
H. Afshari, H. Marasi, J. Alzabut
semanticscholar   +1 more source

A modified analytical approach with existence and uniqueness for fractional Cauchy reaction–diffusion equations

open access: yes, 2020
This article mainly explores and applies a modified form of the analytical method, namely the homotopy analysis transform method (HATM) for solving time-fractional Cauchy reaction–diffusion equations (TFCRDEs). Then mainly we address the error norms L 2 $
Sunil Kumar   +4 more
semanticscholar   +1 more source

Dynamic Multiagent Incentive Contracts: Existence, Uniqueness, and Implementation

open access: yesMathematics, 2020
Multiagent incentive contracts are advanced techniques for solving decentralized decision-making problems with asymmetric information. The principal designs contracts aiming to incentivize non-cooperating agents to act in his or her interest.
Qi Luo, Romesh Saigal
doaj   +1 more source

Multipoint boundary value problem for a coupled system of psi-Hilfer nonlinear implicit fractional differential equation

open access: yesNonlinear Analysis, 2023
This study examines the existence and uniqueness of the solution to the coupled system of the ψ-Hilfer nonlinear implicit fractional multipoint boundary value problem.
Muthukrishnan Latha Maheswari   +2 more
doaj   +1 more source

Existence and uniqueness results for a smoking model with determination and education in the frame of non-singular derivatives

open access: yesDiscrete and Continuous Dynamical Systems. Series A, 2021
These days, it is widely known that smoking causes numerous diseases, as well as resulting in many avoidable losses of life globally, and therefore encumbers the society with enormous unnecessary burdens.
Sümeyra Uçar
semanticscholar   +1 more source

Existence and Uniqueness of Generalised Fractional Cauchy-Type Problem

open access: yesUniversal Journal of Mathematics and Applications, 2020
In this paper, we study the existence and uniqueness of Generalized Fractional Cauchy-type problem involving Hilfer-Hadamard-type fractional derivative for a nonlinear fractional differential equation.
Ahmad Y. A. Salamoonı, D.d. Pawar
doaj   +1 more source

On one existence and uniqueness theorem

open access: yesLithuanian Mathematical Journal, 1968
The abstracts (in two languages) can be found in the pdf file of the article. Original author name(s) and title in Russian and Lithuanian: А. В. Кибенко, Л. Г. Чепурнова. Об одной теореме существования и единственности A. Kibenko, L. Čepurnova.
Kibenko, A. V., Chepurnova, L. G.
openaire   +2 more sources

Existence and uniqueness results for a class of fractional stochastic neutral differential equations

open access: yesChaos, Solitons & Fractals, 2020
In this paper, we investigate new results on the existence and uniqueness of mild solutions to stochastic neutral differential equations involving Caputo fractional time derivative operator with Lipschitz coefficients and under some Caratheodory-type ...
Arzu Ahmadova, N. Mahmudov
semanticscholar   +1 more source

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