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math.AP2009
On nonexistence of Baras--Goldstein type for higher-order parabolic equations with singular potentials
V. A. Galaktionov, I. V. Kamotski
An analogy of nonexistence result by Baras and Goldstein (1984), for the heat equation with inverse singular potential, is proved for 2mth-order linear parabolic equations with Har…
math.AP2004
Regularity properties, representation of solutions and spectral asymptotics of systems with multiplicities
Ilia Kamotski, Michael Ruzhansky
Properties of solutions of generic hyperbolic systems with multiple characteristics with diagonalizable principal part are investigated. Solutions are represented as a Picard serie…