JournalsemVol. 73, No. 3

Volume 73, No. 3 (2018)

Elemente der Mathematik

Elem. Math. cover

pp. 89–94
An extension of the Lobachevsky formula
Hassan Jolany
DOI 10.4171/EM/358
pp. 95–108
Jakob Hermanns Lösung des Kepler-Problems mit einer Erhaltungsgrösse
Ueli Manz
DOI 10.4171/EM/359
pp. 109–121
A few simple Levi-Civita functional equations on groups
Heather Hunt ElfenAllison PerkinsPrasanna K. Sahoo
DOI 10.4171/EM/360
pp. 122–129
Zur Entstehung der Mengenlehre II: Aus Briefen zwischen Richard Dedekind und Georg Cantor
Urs Stammbach
DOI 10.4171/EM/361
pp. 130–132
Eine Dobiński-Reihe für die Anzahl surjektiver Abbildungen
Alfred Schreiber
DOI 10.4171/EM/362
pp. 133–135
3 in 1: A simple way to prove that $e^{r}$ , ln( $r$ ) and $π^{2}$ are irrational
Jürgen MüllerTom Müller
DOI 10.4171/EM/363
pp. 136–138
A short and elementary proof of the structure theorem for finitely generated modules over PIDs
Karlheinz Spindler
DOI 10.4171/EM/364
pp. 139–143
Aufgaben
DOI 10.4171/EM/365
p. 144
Rezensionen
DOI 10.4171/EM/366