Browsing Former Research Lines by Subject "Energy estimates"
Now showing items 1-2 of 2
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A well-posedness result for hyperbolic operators with Zygmund coefficients
(2013-12-31)In this paper we prove an energy estimate with no loss of derivatives for a strictly hyperbolic operator with Zygmund continuous second order coefficients both in time and in space. In particular, this estimate implies the ... -
Time-Dependent Loss of Derivatives for Hyperbolic Operators with Non Regular Coefficients
(2013-12-31)In this paper we will study the Cauchy problem for strictly hyperbolic operators with low regularity coefficients in any space dimension N ≥ 1. We will suppose the coefficients to be log-Zygmund continuous in time and ...