S. Farhangi

activity

20142026

most citedA generalization of van der Corput's difference theorem with applications to recurrence and multiple ergodic averages

2 citations · 4 across the 14 of their papers we have counts for

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3 papers · 1 filter

math.CO2026

$2$ -large sets are sets of nil-Bohr recurrence

Ryan Alweiss, Sohail Farhangi

A set $S$ of positive integers is $2$ -large if every two-coloring contains arbitrarily long monochromatic arithmetic progressions with common difference in $S$ . We prove that every…

math.DS2026

Solutions to 6 problems in recurrence and Van der Corput sets

Sohail Farhangi, Saúl Rodríguez Martín

We present solutions to six problems concerning sets of nice recurrence and van der Corput (vdC) sets. We answer a question of Moreira, repeated by Fish and Skinner, by showing tha…

math.DS2026

Multipliers and Disjointness from Mixing

Sohail Farhangi, Joel Moreira, Rigoberto Zelada

In 2005, Parreau proved that if a measure preserving system is not strongly mixing then it contains a non-trivial factor that is disjoint from every strongly mixing system. Taking…

2-large sets are sets of nil-Bohr recurrence

Solutions to 6 problems in recurrence and Van der Corput sets

Multipliers and Disjointness from Mixing

$2$ -large sets are sets of nil-Bohr recurrence