Results 111 to 120 of about 773,939 (324)

Periodic Solution of a Periodic Neutral Delay Equation

open access: yesJournal of Mathematical Analysis and Applications, 1997
The paper deals with the existence of positive periodic solutions of the equation \[ N'(t)= N(t)\Biggl[a(t)- \sum^n_{j= 1}b_j(t)N(t-\sigma_j)- \sum^n_{j= 1}c_j(t)N'(t-\tau_j)\Biggr],\tag{1} \] where \(a\), \(b_j\), \(c_j\), \(j= 1,2,\dots, n\) are positive continuous functions periodic with period \(\omega>0\) and \(\sigma_j\), \(\tau_j\), \(j= 1,2 ...
openaire   +2 more sources

Monitoring of circulating tumor DNA allows early detection of disease relapse in patients with operable breast cancer

open access: yesMolecular Oncology, EarlyView.
Monitoring circulating tumor DNA (ctDNA) in patients with operable breast cancer can reveal disease relapse earlier than radiology in a subset of patients. The failure to detect ctDNA in some patients with recurrent disease suggests that ctDNA could serve as a supplement to other monitoring approaches.
Kristin Løge Aanestad   +35 more
wiley   +1 more source

The Traveling Wave Solutions and Their Bifurcations for the BBM-Like B(m,n) Equations

open access: yesJournal of Applied Mathematics, 2013
We investigate the traveling wave solutions and their bifurcations for the BBM-like B(m,n) equations ut+αux+β(um)x−γ(un)xxt=0 by using bifurcation method and numerical simulation approach of dynamical systems.
Shaoyong Li, Zhengrong Liu
doaj   +1 more source

Developing evidence‐based, cost‐effective P4 cancer medicine for driving innovation in prevention, therapeutics, patient care and reducing healthcare inequalities

open access: yesMolecular Oncology, EarlyView.
The cancer problem is increasing globally with projections up to the year 2050 showing unfavourable outcomes in terms of incidence and cancer‐related deaths. The main challenges are prevention, improved therapeutics resulting in increased cure rates and enhanced health‐related quality of life.
Ulrik Ringborg   +43 more
wiley   +1 more source

Periodic solutions for evolution equations

open access: yesElectronic Journal of Differential Equations, 2002
We study the existence and uniqueness of periodic solutions for evolution equations. First we analyze the one-dimensional case. Then for arbitrary dimensions (finite or not), we consider linear symmetric operators.
Mihai Bostan
doaj  

Exact Solutions of Travelling Wave Model via Dynamical System Method

open access: yesAbstract and Applied Analysis, 2016
By using the method of dynamical system, the exact travelling wave solutions of the coupled nonlinear Schrödinger-Boussinesq equations are studied. Based on this method, the bounded exact travelling wave solutions are obtained which contain solitary wave
Heng Wang, Longwei Chen, Hongjiang Liu
doaj   +1 more source

On the Rosenau equation: Lie symmetries, periodic solutions and solitary wave dynamics [PDF]

open access: green, 2021
Ali Demirci   +3 more
openalex   +1 more source

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