On a problem of Hopf
Matematičeskie zametki, Tome 68 (2000) no. 4, pp. 637-640.

Voir la notice de l'article provenant de la source Math-Net.Ru

@article{MZM_2000_68_4_a15,
     author = {Yu. A. Aminov},
     title = {On a problem of {Hopf}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {637--640},
     publisher = {mathdoc},
     volume = {68},
     number = {4},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2000_68_4_a15/}
}
TY  - JOUR
AU  - Yu. A. Aminov
TI  - On a problem of Hopf
JO  - Matematičeskie zametki
PY  - 2000
SP  - 637
EP  - 640
VL  - 68
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_2000_68_4_a15/
LA  - ru
ID  - MZM_2000_68_4_a15
ER  - 
%0 Journal Article
%A Yu. A. Aminov
%T On a problem of Hopf
%J Matematičeskie zametki
%D 2000
%P 637-640
%V 68
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_2000_68_4_a15/
%G ru
%F MZM_2000_68_4_a15
Yu. A. Aminov. On a problem of Hopf. Matematičeskie zametki, Tome 68 (2000) no. 4, pp. 637-640. http://geodesic.mathdoc.fr/item/MZM_2000_68_4_a15/

[1] Berger M., C. R. Acad. Sci. Paris Sér. A, 263 (1966), 76–78 | MR | Zbl

[2] Bourguignon J.-P., Deschamps A., Sentenac P., Ann. Sci. \hbox {École} Norm. Sup. (4), 5 (1972), 277–302 | MR | Zbl

[3] Bourguignon J.-P., Deschamps A., Sentenac P., Ann. Sci. \hbox {École} Norm. Sup. (4), 6 (1973), 1–16 | MR | Zbl

[4] Burginon Zh.-P., Chetyrekhmernaya rimanova geometriya, Seminar Artura Besse 1978/79, Mir, M., 1985–1986, 290–296

[5] Baer C., Diff. Geom. Appl., 4:1 (1994), 71–75 | DOI | MR | Zbl

[6] Hsiang Wu-Yi, Kleiner B., J. Diff. Geom., 29:3 (1989), 615–621 | MR | Zbl

[7] Bourguignon J.-P., Differential Geometry (Stanford), Proc. Amer. Math. Soc. Symp. on Pure Math., XXVII, 1975, 33–37 | MR | Zbl