Abstract:
We consider the solution of a linear second-order parabolic equation with one spatial variable and a zero right side. We prove that since the solution decreases quite rapidly in the spatial variable as it approaches a particular point, it vanishes on the part of the characteristic joining the point to the boundary of the region in which the solution is defined.
Citation:
E. M. Landis, “Behavior of the solution of a parabolic equation on a characteristic”, Mat. Zametki, 12:3 (1972), 257–262; Math. Notes, 12:3 (1972), 588–590