On characterization of the sphere in $E^4$ by means of the parallelness of certain vector fields

Svoboda, Karel. "On characterization of the sphere in $E^4$ by means of the parallelness of certain vector fields." Časopis pro pěstování matematiky 105.1 (1980): 56-72. <http://eudml.org/doc/21413>.

@article{Svoboda1980,
author = {Svoboda, Karel},
journal = {Časopis pro pěstování matematiky},
keywords = {surface; parallel normal vector field; orthogonal conjugate net of lines; sphere},
language = {eng},
number = {1},
pages = {56-72},
publisher = {Mathematical Institute of the Czechoslovak Academy of Sciences},
title = {On characterization of the sphere in $E^4$ by means of the parallelness of certain vector fields},
url = {http://eudml.org/doc/21413},
volume = {105},
year = {1980},
}

TY - JOUR
AU - Svoboda, Karel
TI - On characterization of the sphere in $E^4$ by means of the parallelness of certain vector fields
JO - Časopis pro pěstování matematiky
PY - 1980
PB - Mathematical Institute of the Czechoslovak Academy of Sciences
VL - 105
IS - 1
SP - 56
EP - 72
LA - eng
KW - surface; parallel normal vector field; orthogonal conjugate net of lines; sphere
UR - http://eudml.org/doc/21413
ER -