Geodesic
A nonlocal boundary-value problem with conormal derivative for a~mixed-type equation with two inner degeneration lines and various orders of degeneracy
Izvestiâ vysših učebnyh zavedenij. Matematika, no. 1 (2011), pp. 49-58.

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We prove the unique solvability of the boundary value problem with conormal derivative for a mixed-type equation with two inner degeneration lines and with various orders of degeneracy.
Keywords: mixed-type equation, problem with conormal derivative, degeneration lines, extremum principle, Fredholm integral equation. 
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M. S. Salakhitdinov; B. I. Islomov. A nonlocal boundary-value problem with conormal derivative for a~mixed-type equation with two inner degeneration lines and various orders of degeneracy. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 1 (2011), pp. 49-58. http://geodesic.mathdoc.fr/item/IVM_2011_1_a4/

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