On a linear hyperbolic equation with smooth coefficients without solutions
Volume 33 / 1996
Banach Center Publications 33 (1996), 61-66
DOI: 10.4064/-33-1-61-66
Abstract
An example of a locally unsolvable hyperbolic equation of the second order is constructed, which has smooth ($C^∞$) coefficients, but has no solutions in the class of distributions.
