4 citations · 12 across the 3 of their papers we have counts for
3 papers
math.CA2013★ 4 cited
Extremizers and Bellman function for martingale weak type inequality
Alexander Reznikov, Vasiliy Vasyunin, Alexander Volberg
We give an exact formula for the Bellman function of the weak type of martingale transform. We also give the extremal functions (actually extremal sequences of functions). We find…
math.AP2010★ 4 cited
An observation: cut-off of the weight does not increase the -"norm'' of
Alexander Reznikov, Vasiliy Vasyunin, Alexander Volberg
We consider weights and their cut-offs: if and if . We consider a generalized -``norm'' and prove that the ``norm'' of …
math.CA2001★ 4 cited
Criteria for Similarity of a Dissipative Integral Operator to a Normal Operator
Stanislav Kupin, Vasiliy Vasyunin
We consider an integral dissipative operator in its Brodskii-Livshits triangular representation. The main question we are concerned with is similarity of the operator to a normal o…