[5621] Zur Theorie der linearen Substitutionen

[5622] Remarks on potential theory

[5623] On the average order of the function $$E(x) = \sum\limits_{n \leqslant x} {\phi (n) - \frac{{3x^2 }}{{\pi ^2 }}} $$

[5624] A general high indices theorem with an application to a conjecture by Rényi

[5625] Invariant Lorentzian orders on simply connected Lie groups