D. Herden

activity

20142026

most citedA quick method to identify secular resonances in multi-planet systems with a binary companion

10 citations · 42 across the 22 of their papers we have counts for

collaborators

Showing 2019Show all

2 papers · 1 filter

math.CA2019

A theorem of Besicovitch and a generalization of the Birkhoff Ergodic Theorem

Paul Hagelstein, Daniel Herden, Alexander Stokolos

A remarkable theorem of Besicovitch is that an integrable function $f$ on $R^{2}$ is strongly differentiable if and only if its associated strong maximal function $M_{S} f$ is…

math.GR2019

$ℵ_{k}$ -free cogenerators

Manfred Dugas, Daniel Herden, Saharon Shelah

We prove in ZFC that an abelian group $C$ is cotorsion if and only if $Ext (F, C) = 0$ for every $ℵ_{k}$ -free group $F$ , and discuss some consequences and related r…

A theorem of Besicovitch and a generalization of the Birkhoff Ergodic Theorem

ℵk​-free cogenerators

$ℵ_{k}$ -free cogenerators