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Positive Periodic Solutions of Coupled Singular Rayleigh Systems
Qualitative Theory of Dynamical Systems, 2020zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kong, Fanchao +2 more
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Positive periodic solutions of delayed periodic Lotka–Volterra systems
Physics Letters A, 2005zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lin, Wei, Chen, Tianping
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Positive solutions for sublinear periodic parabolic problems
Nonlinear Analysis: Theory, Methods & Applications, 2003zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Godoy, T., Kaufmann, U., Paczka, S.
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Positive solutions for nonlinear periodic problems
Positivity, 2008The paper studies the existence of positive solutions for the following nonlinear periodic problem with a nonsmooth potential \[ -(|x'(t)|^{p-2}x'(t))'\in \partial j(t,x(t))\quad \text{a.e. on} \;[0,b], \tag{1} \] \[ x(0)=x(b),\quad x'(0)=x'(b). \tag{2} \] Here \(b>0\), \(p>1\). In this problem the potential function \(j(t,x)\) is jointly measurable, \(
Filippakis, Michael +2 more
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THREE POSITIVE PERIODIC SOLUTIONS OF NONLINEAR DIFFERENTIAL EQUATIONS WITH PERIODIC COEFFICIENTS
Analysis and Applications, 2005We establish the existence of at least three positive periodic solutions to the second order differential equation with periodic coefficients [Formula: see text] where f is continuous with f(t + T, x) = f(t,x) for (t,x) ∊ R × R and T > 0, p, q are continuous and T-periodic with p > 0 and q ≥ 0.
Liu, Yuji, Ge, Weiguo, Gui, Zhanji
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Positive periodic solutions of neutral Lotka–Volterra system with periodic delays
Applied Mathematics and Computation, 2004zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yang, Zhihui, Cao, Jinde
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Positive periodic solutions of delayed differential equations
Applied Mathematics and Computation, 2011zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yang, Bianxia, Ma, Ruyun, Gao, Chenghua
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