3 papers
math.CA2026
Systems with discrete singular -Laplacian and maximal monotone boundary conditions
Andreea Gruie, Petru Jebelean, Calin Serban
We are concerned with solvability of nonlinear systems involving a discrete singular -Laplacian operator of type \begin{equation*} u \mapsto Î\left[Ï(Îu(n-1))\right] \qquad…
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.CA2024
Non-potential systems with relativistic operators and maximal monotone boundary conditions
Petru Jebelean, Calin Serban
We are concerned with solvability of a non-potential system involving two relativistic operators, subject to boundary conditions expressed in terms of maximal monotone operators. T…