Results 31 to 40 of about 773,939 (324)

Different Wave Structures for the (2+1)-Dimensional Korteweg-de Vries Equation

open access: yesAdvances in Mathematical Physics, 2022
In this article, a (2+1)-dimensional Korteweg-de Vries equation is investigated. Abundant periodic wave solutions are obtained based on the Hirota’s bilinear form and a direct test function.
Chun-Rong Qin   +4 more
doaj   +1 more source

Justification of the coupled-mode approximation for a nonlinear elliptic problem with a periodic potential

open access: yes, 2007
Coupled-mode systems are used in physical literature to simplify the nonlinear Maxwell and Gross-Pitaevskii equations with a small periodic potential and to approximate localized solutions called gap solitons by analytical expressions involving ...
A. Pankov   +20 more
core   +1 more source

Periodic Solutions of a Periodic FitzHugh–Nagumo System [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2015
Recently some interest has appeared for the periodic FitzHugh–Nagumo differential systems. Here, we provide sufficient conditions for the existence of periodic solutions in such differential systems.
Llibre, Jaume, Vidal, Claudio
openaire   +1 more source

Travelling wave solutions for the doubly dispersive equation using improved modified extended tanh-function method

open access: yesAlexandria Engineering Journal, 2022
In the present paper, the improved modified extended tanh-function method is employed to get new exact traveling wave solutions for the doubly dispersive model. Several types of solutions are obtained using the proposed method.
Manar S. Ahmed   +2 more
doaj   +1 more source

Exact one-periodic and two-periodic wave solutions to Hirota bilinear equations in 2+1 dimensions

open access: yes, 2008
Riemann theta functions are used to construct one-periodic and two-periodic wave solutions to a class of (2+1)-dimensional Hirota bilinear equations.
Belokolos E.   +8 more
core   +1 more source

Periodic and asymptotically periodic solutions of neutral integral equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2000
Many results have been obtained for periodic solutions of Volterra integral equations (for instance, [1-3] and references cited therein). Here we consider two systems of neutral integral equations \begin{eqnarray} x(t)=a(t)+\int_0^t D(t,s,x(s))ds+\int_t^\
Tetsuo Furumochi, Theodore Burton
doaj   +1 more source

Stability and exact multiplicity of periodic solutions of Duffing equations with cubic nonlinearities

open access: yes, 2007
We study the stability and exact multiplicity of periodic solutions of the Duffing equation with cubic nonlinearities. We obtain sharp bounds for h such that the equation has exactly three ordered T-periodic solutions.
Chen, Hongbin, Li, Yi
core   +2 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Scaling laws for large numbers of coexisting attracting periodic solutions in the border-collision normal form

open access: yes, 2014
A wide variety of intricate dynamics may be created at border-collision bifurcations of piecewise-smooth maps, where a fixed point collides with a surface at which the map is nonsmooth.
Simpson, David J. W.
core   +1 more source

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

open access: yesFEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer   +7 more
wiley   +1 more source

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