Hurwitz monodromy, spin separation and higher levels of a modular tower
Hurwitz monodromy, spin separation and higher levels of a modular tower
Each finite p-perfect group G (p a prime) has a universal central p-extension coming from the p part of its Schur multiplier. Serre gave a Stiefel- Whitney class approach to analyzing spin covers of alternating groups (p = 2) aimed at geometric covering space problems that included their regular realization …