... contrary that p K0 (ext) has rank at least There are matrices s1 = (s1ij ) and s2 = (s2ij ) whose images in p K0 (ext) generate an elementary p-group of rank For each pair ≤ k, l ≤ p such that k, ... graduate students in our department who helped me in one way and another To mention a few of them, I am particularly grateful to Ai Xinghuan, Chen Weidong, Gao Rui, Ma Jiajun, Wang Yi and Wang Haitao ... [32] and [37]) on an exact category and Waldhausen’s S-construction on a category with cofibrations (see [41]) But due to highly abstract categorical and simplicial machinery, both constructions are...