Positive $2$-spheres in $4$-manifolds of signature $(1,n)$.
Kikuchi, Kazunori
Pacific J. Math., Tome 161 (1993) no. 2, p. 245-258 / Harvested from Project Euclid
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Publié le : 1993-05-14
Classification:  57R95,  57R19 
@article{1102624216,
     author = {Kikuchi, Kazunori},
     title = {Positive $2$-spheres in $4$-manifolds of signature $(1,n)$.},
     journal = {Pacific J. Math.},
     volume = {161},
     number = {2},
     year = {1993},
     pages = { 245-258},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1102624216}
}

Kikuchi, Kazunori. Positive $2$-spheres in $4$-manifolds of signature $(1,n)$.. Pacific J. Math., Tome 161 (1993) no. 2, pp.  245-258. http://gdmltest.u-ga.fr/item/1102624216/