which shall already be published in a Russian journal. It's also claimed that that paper solves the respective Clay Millenium Problem. Given that the paper is in Russian and I haven't heard about the author and the journal, I am curios if somebody can shed some light on the issue. Has Otelbayev found some genuinely new approach to Navier-Stokes?
Remark 1: There is already some discussion going on at several other places on the internet and I am aware that it has been discussed (e.g. here) if questions of this type are suitable here, but I thought that MO would generate most reliable answers quickly and would be a good place to keep relevant information.
Remark 3: As Sam Hopkins noted in a comment below, Terry Tao just published the preprint "Finite time blowup for an averaged three-dimensional Navier-Stokes equation" which indicates that a positive solution of global existence of Navier-Stokes equations is "improbable" and also proposes a program for adapting approach laid out in the paper to the true Navier-Stokes equations.