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math.AP2026
Periodic solutions for p(t)-Lienard equations with a singular nonlinearity of attractive type
Petru Jebelean, Jean Mawhin, Calin Serban
We are concerned with the existence of -periodic solutions to an equation of type $$\left (|u'(t))|^{p(t)-2} u'(t) \right )'+f(u(t))u'(t)+g(u(t))=h(t)\quad \mbox{ in }[0,T]$$ wh…
math.AP2025
Potential systems with singular -Laplacian
Petru Jebelean
We are concerned with solvability of the boundary value problem $$-\left[ Ï(u^{\prime}) \right] ^{\prime}=\nabla_u F(t,u), \quad \left ( Ï\left( u^{\prime }\right)(0), -Ï\left(…