On 16th of December 16, 2019 at 14:00 at the meeting of the Scientific Council number PhD.28.12.2017.FM.55.01 at Urgench State University defense of the thesis of Khasanov Muzaffar Masharipovich for the degree of Doctor of Philosophy (PhD) in the specialty 01.01.02 - Differential Equations and Mathematical Physics. Thesis topic "Integration of nonlinear loaded Schrödinger equation and a modified Korteweg-de-Vries equation with a self-consistent source in the class of periodic functions."