 Belinski contributed to the redaction of some chapters in Landau and Lifshitz's course of theoretical physics for volume 2.One of his most notable scientific contributions is BKL conjecture (Belinski—Khalatnikov—Lifshitz conjecture) on the behavior of generic solutions of Einstein field equations near a cosmological singularity.He co-invented the Belinski-Zakharov transform in 1978 showing that black holes are a special example of gravitational solitons.