To the solution of the Solonnikov-Fasano problem with boundary moving on arbitrary law x = γ(t)

M.T. Jenaliyev, Institute of Mathematics and Mathematical Modeling, M.I. Ramazanov, A.O. Tanin, Buketov Karaganda University, Buketov Karaganda University
2021 BULLETIN OF THE KARAGANDA UNIVERSITY-MATHEMATICS  
In this paper we study the solvability of the boundary value problem for the heat equation in a domain that degenerates into a point at the initial moment of time. In this case, the boundary changing with time moves according to an arbitrary law x = γ(t). Using the generalized heat potentials, the problem under study is reduced to a pseudo-Volterra integral equation such that the norm of the integral operator is equal to one and it is shown that the corresponding homogeneous integral equation has a nonzero solution.
doi:10.31489/2021m1/37-49 fatcat:vl4kuomvwnfrxdmij3yjqdx43e