Results 11 to 20 of about 1,789,428 (238)

Solving ill-posed bilevel programs [PDF]

, 2016
This paper deals with ill-posed bilevel programs, i.e., problems admitting multiple lower-level solutions for some upper-level parameters. Many publications have been devoted to the standard optimistic case of this problem, where the difficulty is ...
AG Mersha, AG Mersha, B Colson, BS Mordukhovich, BS Mordukhovich, BS Mordukhovich, BS Mordukhovich, BS Mordukhovich, DA Molodtsov, G-H Lin, H Bonnel, HF von Stackelberg, J Fliege, J Jahn, J-P Aubin, JF Bard, JJ Ye, JJ Ye, JJ Ye, JJ Ye, JV Outrata, M Xu, M Červinka, NQ Huy, P Loridan, R Lucchetti, S Dempe, S Dempe, S Dempe, S Dempe, S Dempe, S Dempe, S Dempe, S Dempe, S Dempe, S Dempe, S Dempe, S Dempe, S Dempe, S Dias, S Ruuska, SM Robinson, TXD Ha, W Wiesemann   +43 more
core   +1 more source

Existence of bounded trajectories via upper and lower solutions

Discrete and Continuous Dynamical Systems, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
MALAGUTI, Luisa, C. Marcelli
openaire   +2 more sources

On Fuzzy Differential Inequalities with Upper and Lower Solutions

Journal of New Theory, 2021
In this article, by using the technique of upper and lower solutions, some comparison results for first-order fuzzy differential equations are established. Hukuhara derivative, Hukuhara difference, and partial orderings are used for proving theorems. We extend our results to initial time difference case as well.
Ali Yakar, Seda Çağlak
openaire   +4 more sources

On the nonlocal Fisher-KPP equation: steady states, spreading speed and global bounds

, 2013
We consider the Fisher-KPP equation with a non-local interaction term. We establish a condition on the interaction that allows for existence of non-constant periodic solutions, and prove uniform upper bounds for the solutions of the Cauchy problem, as ...
Hamel, Francois, Ryzhik, Lenya
core   +2 more sources

Upper and Lower Solutions and Multiplicity Results

Journal of Mathematical Analysis and Applications, 2000
Using the topological degree theory, the author obtains some multiplicity results for the second-order differential equation \(x''=f(t,x,x')\), with both linear (periodic and Neumann) and nonlinear boundary conditions. Here, \(f:[a,b]\times \mathbb{R}^2 \to \mathbb{R}\) is continuous and satisfies certain growth conditions.
openaire   +1 more source

Lower and Upper Solutions Method for Positive Solutions of Fractional Boundary Value Problems [PDF]

Abstract and Applied Analysis, 2013
We apply the lower and upper solutions method and fixed-point theorems to prove the existence of positive solution to fractional boundary value problemD0+αut+ft,ut=0,0<t<1,2<α≤3,u0=u′0=0,D0+α−1u1=βuξ,0<ξ<1, whereD0+αdenotes Riemann-Liouville fractional derivative,βis positive real number,βξα−1≥2Γα, andfis continuous on0,1×0,∞.
Rahmat Darzi, B. Mohammadzadeh, A. Neamaty, Dumitru Băleanu   +3 more
openaire   +4 more sources

Upper and Lower Solutions and Topological Degree

Journal of Mathematical Analysis and Applications, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Upper and Lower Solutions for a Generalized Emden-Fowler Equation

Journal of Mathematical Analysis and Applications, 1994
The paper deals with the problem \(u''+ g(t,u)= 0\), \(u(0)= u(1)= 0\), where the function \(g\) can be singular at \(t=0\), \(t=1\) and \(u=0\). The authors prove the existence of positive solution of this problem, supposing in the main that nonlinearity has to become large enough when \(u\) goes to zero and singularity has to be small enough so that ...
HABETS P., ZANOLIN, Fabio
openaire   +4 more sources

Radiotherapy Delivery in Deep Inspiration for Pediatric Patients—Final Results of the Phase II Feasibility Study TEDDI

Pediatric Blood &Cancer, EarlyView.
Abstract Introduction The TEDDI trial tested the feasibility and reproducibility of deep‐inspiration breath‐hold (DIBH) in pediatric patients referred for radiotherapy. This report presents final results, including patient‐reported outcomes (PRO) and dosimetric comparison of DIBH and free‐breathing (FB).
Daniella Elisabet Østergaard, Anni Young Lundgaard, Laura Ann Rechner, Danijela Dejanovic, Hanne Krogh Rose, Jolanta Hansen, Leila Vaalavirta, Miia Mokka, Marianne Aznar, Peder Skov Wehner, Lisa Lyngsie Hjalgrim, Maja Vestmø Maraldo   +11 more
wiley   +1 more source

DELP Treatment on Vision and Retinal Microcirculation in Patients With Acute Ischemic Stroke: Report of Five Cases and Literature Review

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background The delipid extracorporeal lipoprotein filter from plasma (DELP) treatment can effectively reduce blood lipid, increase blood flow, and improve neurological deficits in patients with acute ischemic stroke (AIS). However, its effect on vision and retinal microcirculation in stroke patients has never been reported.
Ning Li, Ronghua Hong, Hua You, Feiping Xu, Qingjun Zhang, Yiwen Lin, Yuting Su, Danmei Lan, Lingjing Jin, Junhui She   +9 more
wiley   +1 more source