1 citations · 2 across the 4 of their papers we have counts for
4 papers
Solvability of Rado systems in D-sets
Mathias Beiglböck, Vitaly Bergelson, Tomasz Downarowicz +1
Rado's Theorem characterizes the systems of homogenous linear equations having the property that for any finite partition of the positive integers one cell contains a solution to t…
Duality for Borel measurable cost functions
Mathias Beiglböck, Walter Schachermayer
We consider the Monge-Kantorovich transport problem in an abstract measure theoretic setting. Our main result states that duality holds if is an arbitra…
Strong characterizing sequences of countable groups
Mathias Beiglböck
András Biró and Vera Sós prove that for any subgroup of $\T$ generated freely by finitely many generators there is a sequence such that for all $β\in \T$ we have…
Sequences and filters of characters characterizing subgroups of compact abelian groups
Mathias Beiglböck, Christian Steineder, Reinhard Winkler
Let H be a countable subgroup of the metrizable compact abelian group G and f:H -> T=R/Z a (not necessarily continuous) character of H. Then there exists a sequence (chi_n)_n of (c…