Complexes and Vanishing of Cohomology for Group Schemes
نویسندگان
چکیده
منابع مشابه
Sharp vanishing thresholds for cohomology of random flag complexes
For every k ≥ 1, the k-th cohomology group H(X,Q) of the random flag complex X ∼ X(n, p) passes through two phase transitions: one where it appears and one where it vanishes. We describe the vanishing threshold and show that it is sharp. Using the same spectral methods, we also find a sharp threshold for the fundamental group π1(X) to have Kazhdan’s property (T). Combining with earlier results,...
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ژورنال
عنوان ژورنال: Journal of Algebra
سال: 1999
ISSN: 0021-8693
DOI: 10.1006/jabr.1998.7711