Results 61 to 70 of about 1,158 (197)

Cauchy problem for derivors in finite dimension

Electronic Journal of Differential Equations, 2001
In this paper we study the uniqueness of solutions to ordinary differential equations which fail to satisfy both accretivity condition and the uniqueness condition of Nagumo, Osgood and Kamke.
Jean-Francois Couchouron, Claude Dellacherie, Michel Grandcolas   +2 more
doaj  

Review of Memristors for In‐Memory Computing and Spiking Neural Networks

Advanced Intelligent Systems, Volume 8, Issue 3, March 2026.
Memristors uniquely enable energy‐efficient, brain‐inspired computing by acting as both memory and synaptic elements. This review highlights their physical mechanisms, integration in crossbar arrays, and role in spiking neural networks. Key challenges, including variability, relaxation, and stochastic switching, are discussed, alongside emerging ...
Mostafa Shooshtari, Teresa Serrano‐Gotarredona, Bernabé Linares‐Barranco   +2 more
wiley   +1 more source

Data‐Driven Distributed Safe Control Design for Multi‐Agent Systems

International Journal of Adaptive Control and Signal Processing, Volume 40, Issue 1, Page 137-150, January 2026.
This paper presents a data‐driven control barrier function (CBF) technique for ensuring safe control of multi‐agent systems (MASs) with uncertain linear dynamics. A data‐driven quadratic programming (QP) optimization is first developed for CBF‐based safe control of single‐agent systems using a nonlinear controller. This approach is then extended to the
Marjan Khaledi, Bahare Kiumarsi
wiley   +1 more source

Existence results for singular nonlinear BVPs in the critical regime

Electronic Journal of Qualitative Theory of Differential Equations
We study the existence of solutions for a class of boundary value problems on the half line, associated to a third order ordinary differential equation of the type $$\left(\Phi(k(t, u'(t))u''(t))\right)'(t)=f \left(t, u(t), u'(t), u''(t) \right), \quad ...
Francesca Anceschi, Giuseppina Autuori, Francesca Papalini   +2 more
doaj   +1 more source

Heteroclinic Solutions for Classical and Singular ϕ-Laplacian Non-Autonomous Differential Equations

Axioms, 2019
In this paper, we consider the second order discontinuous differential equation in the real line, a t , u ϕ u ′ ′ = f t , u , u ′ , a . e . t ∈ R , u ( − ∞ ) = ν − , u ( + ∞ )
Feliz Minhós
doaj   +1 more source

Outcomes and Management of Dermatologic Toxicity Following Enfortumab Vedotin Rechallenge in Patients With Metastatic Urothelial Carcinoma: A Retrospective Single‐Center Study

Cancer Reports, Volume 9, Issue 1, January 2026.
ABSTRACT Background Enfortumab vedotin (EV) has demonstrated clinical benefits as a third‐line monotherapy after chemotherapy and immune checkpoint inhibitors and is currently established, in combination with pembrolizumab, as a first‐line standard therapy for metastatic urothelial carcinoma (mUC). However, dermatologic adverse events (DAEs) are common
Takashi Kawahara, Yoshiyuki Nagumo, Akane Yamaguchi, Kazuki Hamada, Kozaburo Tanuma, Satoshi Nitta, Masanobu Shiga, Atsushi Ikeda, Shuya Kandori, Akio Hoshi, Hiroyuki Nishiyama   +10 more
wiley   +1 more source

Sufficient conditions for nonexistence of gradient blow-up for nonlinear parabolic equations

Electronic Journal of Differential Equations, 2007
In this paper we study the initial-boundary value problems for nonlinear parabolic equations without Bernstein-Nagumo condition. Sufficient conditions guaranteeing the nonexistence of gradient blow-up are formulated.
Aris S. Tersenov
doaj  

The legacy of the Cartwright–Littlewood collaboration

Journal of the London Mathematical Society, Volume 113, Issue 1, January 2026.
Abstract Mary L. Cartwright and John E. Littlewood published a short “preliminary survey” in 1945 describing results of their investigation of the forced van der Pol equation ÿ−k(1−y2)ẏ+y=bλkcos(λt+a)$$\begin{equation*} \ddot{y}-k(1-y^2)\dot{y}+y = b \lambda k \cos (\lambda t+a) \end{equation*}$$in which b,λ,k,a$b,\lambda,k,a$ are parameters with k$k$
John Guckenheimer
wiley   +1 more source

Positive radial solutions for the elliptic boundary value problem with gradient terms on the unit ball

四川大学学报. 自然科学版, 2021
We consider the existence of positive radial solutions to a class of elliptic boundary value problem with gradient term. The existence of positive radial solutions is obtained by using the Leray-Schauder fixed point theorem.
TANG Ying, LI Yong-Xiang
doaj  

On Dynamical Behaviour of FitzHugh-Nagumo Systems : revisited

, 2009
The purpose of this paper is to analyse a general form of the FitzHugh–Nagumo model as completely as possible. The main result is that no more than two limit cycles can be bifurcated from the unique fixed point via Hopf bifurcation, and there exist ...
Ringkvist, Mattias,, Zhou, Yishao,
core   +1 more source