Browsing by Author "Reznikov, Alexander"

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    On weak weighted estimates of martingale transform
    (Oberwolfach : Mathematisches Forschungsinstitut Oberwolfach, 2016) Nazarov, Fedor; Reznikov, Alexander; Vasyunin, Vasily
    We consider several weak type estimates for singular operators using the Bellman function approach. We disprove the A1 conjecture, which stayed open after Muckenhoupt-Wheeden's conjecture was disproved by Reguera-Thiele.