Geodesic
Comparison theorems for a coupled system of singular hyperbolic differential inequalities. I. Time-independent uncoupling coefficients
Atti della Accademia nazionale dei Lincei. Rendiconti della Classe di scienze fisiche, matematiche e naturali, Série 8, Tome 66 (1979) no. 4, pp. 250-254 Cet article a éte moissonné depuis la source Biblioteca Digitale Italiana di Matematica

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L'articolo contiene teoremi di confronto per un sistema accoppiato di disequazioni differenziali iperboliche singolari nel caso in cui i coefficienti di accoppiamento non dipendono dal tempo. 
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     title = {Comparison theorems for a coupled system of singular hyperbolic differential inequalities. {I.} {Time-independent} uncoupling coefficients},
     journal = {Atti della Accademia nazionale dei Lincei. Rendiconti della Classe di scienze fisiche, matematiche e naturali},
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Chan, C.Y.; Young, Eutiquio C. Comparison theorems for a coupled system of singular hyperbolic differential inequalities. I. Time-independent uncoupling coefficients. Atti della Accademia nazionale dei Lincei. Rendiconti della Classe di scienze fisiche, matematiche e naturali, Série 8, Tome 66 (1979) no. 4, pp. 250-254. http://geodesic.mathdoc.fr/item/RLINA_1979_8_66_4_a2/

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