Results 31 to 40 of about 1,794,477 (278)

Existence of traveling wave solutions with critical speed in a delayed diffusive epidemic model

open access: yesAdvances in Difference Equations, 2019
In this paper, we prove the existence of a critical traveling wave solution for a delayed diffusive SIR epidemic model with saturated incidence. Moreover, we establish the nonexistence of traveling wave solutions with nonpositive wave speed for this ...
Yueling Cheng   +3 more
doaj   +1 more source

Extremal solutions for second-order fully discontinuous problems with nonlinear functional boundary conditions

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2018
We provide new results concerning the existence of extremal solutions for a class of second-order problems with nonlinear functional boundary conditions where the nonlinearity considered may be discontinuous with respect to all of its variables. The main
Ruben Figueroa   +2 more
doaj   +1 more source

New Positive Solutions of Nonlinear Elliptic PDEs

open access: yesApplied Sciences, 2020
We are concerned with positive solutions of two types of nonlinear elliptic boundary value problems (BVPs). We present conditions for existence, uniqueness and multiple positive solutions of a first type of elliptic BVPs.
Mustafa Inc   +6 more
doaj   +1 more source

Traveling Wave Solutions of a Reaction-Diffusion Equation with State-Dependent Delay [PDF]

open access: yes, 2014
This paper is concerned with the traveling wave solutions of a reaction-diffusion equation with state-dependent delay. When the birth function is monotone, the existence and nonexistence of monotone traveling wave solutions are established.
Lin, Guo, Wang, Haiyan
core  

Upper and lower solutions satisfying the inverse inequality [PDF]

open access: yesAnnales Polonici Mathematici, 1997
Summary: We consider multipoint and two-point BVPs for second order ordinary differential equations with a Carathéodory right hand side. We prove the existence of solutions provided there exist upper and lower solutions of the BVP and the upper solution is less than the lower one.
openaire   +2 more sources

Intravitreal GD2‐Specific Chimeric Antigen Receptor T‐Cell Therapy for Refractory Retinoblastoma

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Effective treatments for advanced, treatment‐resistant retinoblastoma (RB) remain limited. GD2‐specific chimeric antigen receptor (CAR) T cells show potent antitumor activity with minimal toxicity but have not previously been evaluated in RB.
Subongkoch Subhadhirasakul   +13 more
wiley   +1 more source

Upper and lower solutions method for a class of second-order coupled systems

open access: yesBoundary Value Problems
This paper provides a class of upper and lower solution definitions for second-order coupled systems by transforming the fourth-order differential equation into a second-order differential system.
Zelong Yu, Zhanbing Bai, Suiming Shang
doaj   +1 more source

Rate Balancing in Full-Duplex MIMO Two-Way Relay Networks

open access: yes, 2019
Maximizing the minimum rate for a full-duplex multiple-input multiple-output (MIMO) wireless network encompassing two sources and a two-way (TW) relay operating in a two hop manner is investigated. To improve the overall performance, using a zero-forcing
Akhlaghi, Soroush   +2 more
core   +1 more source

Pulmonary Dysfunction Is Associated With Sleep Study Abnormalities in Children With Sickle Cell Disease: A Multicenter Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Pulmonary dysfunction and sleep abnormalities are common in children with sickle cell disease (SCD) and are associated with worse clinical outcomes. Whether spirometry abnormalities are associated with polysomnography (PSG) findings remains unclear.
Ammar Saadoon Alishlash   +4 more
wiley   +1 more source

Positive solutions for nonlinear Caputo-Hadamard fractional differential equations [PDF]

open access: yesSurveys in Mathematics and its Applications, 2021
n this paper we study the existence and uniqueness of positive solutions for a class of nonlinear Caputo-Hadamard fractional differential equations by using the method of upper and lower solutions and Schauder and Banach fixed point theorems.
Salim Hamida   +2 more
doaj  

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