Changes of sign of error terms related to Euler's function and to divisor functions.

@article{Pétermann1986,
author = {Pétermann, Y.-F. S.},
journal = {Commentarii mathematici Helvetici},
keywords = {number of lattice points; sign change; error terms; Euler function; sum- of-divisors function; 4-dimensional ellipsoids},
pages = {84-101},
title = {Changes of sign of error terms related to Euler's function and to divisor functions.},
url = {http://eudml.org/doc/140042},
volume = {61},
year = {1986},
}

TY - JOUR
AU - Pétermann, Y.-F. S.
TI - Changes of sign of error terms related to Euler's function and to divisor functions.
JO - Commentarii mathematici Helvetici
PY - 1986
VL - 61
SP - 84
EP - 101
KW - number of lattice points; sign change; error terms; Euler function; sum- of-divisors function; 4-dimensional ellipsoids
UR - http://eudml.org/doc/140042
ER -