Congratulations to the teacher-trainee of the Department of Higher Mathematics and Statistics Dudko Anastasia Ihorivna on receiving the diploma of Doctor of Philosophy in accordance with the educational and scientific program Mathematics as a result of the successful defense of the dissertation research on the topic: "Finite-dimensional spectral problems on graphs" in the specialty 111 Mathematics (supervisor - Doctor of Physics -mathematical sciences, professor, head of the department of higher mathematics and statistics Vyacheslav Mykolayovych Pyvovarchyk).