Lifting of operators and prescribed numbers of negative squares.
Arsene, Gr. ; Constantinescu, T. ; Gheondea, A.
Michigan Math. J., Tome 34 (1987) no. 1, p. 201-216 / Harvested from Project Euclid
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Publié le : 1987-05-14
Classification:  47A20,  47B50 
@article{1029003552,
     author = {Arsene, Gr. and Constantinescu, T. and Gheondea, A.},
     title = {Lifting of operators and prescribed numbers of negative squares.},
     journal = {Michigan Math. J.},
     volume = {34},
     number = {1},
     year = {1987},
     pages = { 201-216},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1029003552}
}

Arsene, Gr.; Constantinescu, T.; Gheondea, A. Lifting of operators and prescribed numbers of negative squares.. Michigan Math. J., Tome 34 (1987) no. 1, pp.  201-216. http://gdmltest.u-ga.fr/item/1029003552/