Central extentions and coverings .Publications Universitat Autonoma de Barcelona. vol. 29 (1985), 145-153.
WOJTKOWIAK, ZDZISLAW, JOZEF
HAL, hal-01293244 / Harvested from HAL
Text on HAL
The theory of central extensions has a lot of analogy with the theory of covering spaces. In this paper we show that the category of central extensions of a perfect group and a certain category of covering spaces are equivalent. Then the facts about central extensions will follow from the corresponding facts about coverings.
Publié le : 1985-07-04
Classification:  [MATH.MATH-NT]Mathematics [math]/Number Theory [math.NT],  [MATH.MATH-AT]Mathematics [math]/Algebraic Topology [math.AT],  [MATH]Mathematics [math] 
@article{hal-01293244,
     author = {WOJTKOWIAK, ZDZISLAW, JOZEF},
     title = {Central extentions and coverings .Publications Universitat Autonoma de Barcelona. vol. 29 (1985), 145-153.},
     journal = {HAL},
     volume = {1985},
     number = {0},
     year = {1985},
     language = {en},
     url = {http://dml.mathdoc.fr/item/hal-01293244}
}

WOJTKOWIAK, ZDZISLAW, JOZEF. Central extentions and coverings .Publications Universitat Autonoma de Barcelona. vol. 29 (1985), 145-153.. HAL, Tome 1985 (1985) no. 0, . http://gdmltest.u-ga.fr/item/hal-01293244/