On weak solutions of semilinear hyperbolic-parabolic equations.
On a nonlinear degenerate evolution equation with strong damping.
Stability for a coupled system of wave equations of Kirchhoff type with nonlocal boundary conditions.
On the magnetohydrodynamic type equations in a new class of non-cylindrical domains
Viene provata l'esistenza e l'unicità delle soluzioni deboli per un sistema di equazioni della magnetoidrodinamica in un dominio variabile. Per la dimostrazione si usano il metodo di Galerkin spettrale e la tecnica introdotta da Dal Passo e Ughi per trattare i problemi con dominio dipendente dal tempo.
Generalized F tests in models with random perturbations: the gamma case
Generalized F tests were introduced for linear models by Michalski and Zmyślony (1996, 1999). When the observations are taken in not perfectly standardized conditions the F tests have generalized F distributions with random non-centrality parameters, see Nunes and Mexia (2006). We now study the case of nearly normal perturbations leading to Gamma distributed non-centrality parameters.
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