Results 71 to 80 of about 629,413 (279)

Existence of positive solution to the boundary value problems for coupled system of nonlinear fractional differential equations

AIMS Mathematics, 2019
In this paper, we investigate the existence criteria of at least one positive solution to the three-point boundary value problems with coupled system of Riemann-Liouville type nonlinear fractional order differential equations.
Md. Asaduzzaman, Md. Zulfikar Ali
doaj   +1 more source

Linearized asymptotic stability for nabla Riemann-Liouville fractional difference equation [PDF]

Archives of Control Sciences
In this paper,we present a theorem about stability of nonlinear fractional difference equation with Riemann-Liouvile difference operator. The result is a version of classical theorem on linear approximation and to derive them,we prove the variation of ...
Pham The Anh, Adam Czornik, Michał Niezabitowski   +2 more
doaj   +1 more source

One‐level densities in families of Grössencharakters associated to CM elliptic curves

Mathematika, Volume 72, Issue 1, January 2026.
Abstract We study the low‐lying zeros of a family of L$L$‐functions attached to the complex multiplication elliptic curve Ed:y2=x3−dx$E_d \;:\; y^2 = x^3 - dx$, for each odd and square‐free integer d$d$. Specifically, upon writing the L$L$‐function of Ed$E_d$ as L(s−12,ξd)$L(s-\frac{1}{2}, \xi _d)$ for the appropriate Grössencharakter ξd$\xi _d$ of ...
Chantal David, Lucile Devin, Ezra Waxman
wiley   +1 more source

Approximate Controllability for Impulsive Riemann-Liouville Fractional Differential Inclusions

Abstract and Applied Analysis, 2013
We study the control systems governed by impulsive Riemann-Liouville fractional differential inclusions and their approximate controllability in Banach space.
Zhenhai Liu, Maojun Bin
doaj   +1 more source

Modulation of Electron Rolling‐Pin Distribution Behind Anti‐Dipolarization Front

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract The electron rolling pin distribution, showing electron pitch angles primarily at 0°, 90°, and 180°, has been recently observed behind dipolarization fronts (DFs) in the magnetosphere of Earth. However, the relation between such distribution and the leading edge of tailward magnetic reconnection jets, also known as anti‐dipolarization fronts ...
W. Z. Zhang, H. S. Fu, W. D. Fu, Z. Wang, Z. Y. Xu   +4 more
wiley   +1 more source

A Liouville theorem for a class semilinear elliptic equations on the Heisenberg group [PDF]

Advances in Mathematics, 2020
Xinan Ma, Q. Ou
semanticscholar   +1 more source

Liouville theorem for an integral system on the upper half space

, 2014
In this paper we establish a Liouville type theorem for an integral system on the upper half space $\mathbb{R}_+^{n}$ \begin{equation*} \begin{cases} u(y)=\int_{\mathbb{R}^{n}_+}\frac{f(v(x))}{|x-y|^{n-\alpha}}dx,&\quad y\in\partial\mathbb{R}^{n}_+,\\
Jingbo Dou, Ye Li
semanticscholar   +1 more source

Supercritical Pitchfork Bifurcation of a Fractional‐Order Doubly‐Fed Induction Generator

Energy Science &Engineering, Volume 13, Issue 12, Page 5970-5987, December 2025.
ABSTRACT To address the problem of the chaos phenomenon caused by the parameter drift of a doubly‐fed induction generator (DFIG) due to a changing operating environment, a fractional‐order stator voltage/flux‐oriented control model is developed, and bifurcation theory and numerical simulations reveal that the chaos mechanism originates from ...
Wei Chen, Zhongli Chen, Zhanhong Wei, Jiangtao Li, Jie Lin   +4 more
wiley   +1 more source

Existence Results for the Distributed Order Fractional Hybrid Differential Equations

Abstract and Applied Analysis, 2012
We introduce the distributed order fractional hybrid differential equations (DOFHDEs) involving the Riemann-Liouville differential operator of order ...
Hossein Noroozi, Alireza Ansari, Mohammad Shafi Dahaghin   +2 more
doaj   +1 more source