Characterizations of the sphere in by means of the pseudoparallel mean curvature vector field
Časopis pro pěstování matematiky (1980)
- Volume: 105, Issue: 3, page 266-277
- ISSN: 0528-2195
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top- A. Švec, Contributions to the global differential geometгy of surfaсes, Rozpravy ČSАV 1, 87, 1977, p. 1-94. (1977) MR0467608
- K. Svoboda, Some global сharaсterizations of the sphere in E4, Čas. pro pěst. matem. 103 (1978), p. З91-З99. (1978) MR0512236