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Article Contents

# Well-posedness and long-time behavior for a class of doubly nonlinear equations

• This paper addresses a doubly nonlinear parabolic inclusion of the form

$\mathcal A (u_t)+\mathcal B (u)$ ∋ f.

Existence of a solution is proved under suitable monotonicity, coercivity, and structure assumptions on the operators $\mathcal A$ and $\mathcal B$, which in particular are both supposed to be subdifferentials of functionals on $L^2(\Omega)$. Since unbounded operators $\mathcal A$ are included in the analysis, this theory partly extends Colli & Visintin's work [24]. Moreover, under additional hypotheses on $\mathcal B$, uniqueness of the solution is proved. Finally, a characterization of $\omega$-limit sets of solutions is given, and we investigate the convergence of trajectories to limit points.

Mathematics Subject Classification: Primary: 35K55; Secondary: 35B40.

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