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On the magnetohydrodynamic type equations in a new class of non-cylindrical domains

Luigi C. Berselli; Jorge Ferreira — 1999

Bollettino dell'Unione Matematica Italiana

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.

On weak solutions of semilinear hyperbolic-parabolic equations.

Ferreira, Jorge — 1996

International Journal of Mathematics and Mathematical Sciences

On a nonlinear degenerate evolution equation with strong damping.

Ferreira, Jorge; Pereira, Ducival Carvalho — 1992

International Journal of Mathematics and Mathematical Sciences

Stability for a coupled system of wave equations of Kirchhoff type with nonlocal boundary conditions.

Ferreira, Jorge; Pereira, Ducival C.; Santos, Mauro L. — 2003

Electronic Journal of Differential Equations (EJDE) [electronic only]

Generalized F tests in models with random perturbations: the gamma case

Célia Maria Pinto Nunes; Sandra Maria Bargão Saraiva Ferreira; Dário Jorge da Conceição Ferreira — 2009

Discussiones Mathematicae Probability and Statistics

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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