Volodymyr K. was a very nice guy. He clearly knows what he is doing and he was very professional, to the point, without being in too much of a hurry (as some freelancers naturally are), but without taking time in superfluous things. Would recommend =).
I had a project that Volodymyr was able to complete fully and completely. It was a pleasure working with him and would like to do so again. I would certainly recommend him to friends and family
Phase transitions at non-zero temperatures in ultracold Bose- and Fermi-particles mixture in optical lattices using the Bose-Fermi-Hubbard model in the mean field and hard-core boson approximations are investigated...