We prove that any first order system, in one space variable, with analytic coefficients depending only on time, is smoothly symmetrizable if and only if it is uniformly symmetrizable. Thus any one of these conditions is sufficient for the well posedness in C∞. © 2001 Academic Press.
A remark on uniformly symmetrizable systems / D'Ancona, Piero Antonio; Sergio, Spagnolo. - In: ADVANCES IN MATHEMATICS. - ISSN 0001-8708. - 158:1(2001), pp. 18-25. [10.1006/aima.2000.1957]
A remark on uniformly symmetrizable systems
D'ANCONA, Piero Antonio;
2001
Abstract
We prove that any first order system, in one space variable, with analytic coefficients depending only on time, is smoothly symmetrizable if and only if it is uniformly symmetrizable. Thus any one of these conditions is sufficient for the well posedness in C∞. © 2001 Academic Press.File allegati a questo prodotto
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