✦ LIBER ✦
Fp-espaces vectoriels de formes différentielles logarithmiques sur la droite projective
✍ Scribed by Guillaume Pagot
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 295 KB
- Volume
- 97
- Category
- Article
- ISSN
- 0022-314X
No coin nor oath required. For personal study only.
✦ Synopsis
Let k be an algebraically closed field of characteristic p > 0: Let m 2 N; ðm; pÞ ¼ 1: We study F p -vector spaces of logarithmic differential forms on the projective line such that each non-zero form has a unique zero at 1 of given order m À 1: We discuss the existence of such vectors spaces according to the value of m: We give applications to the lifting to characteristic 0 of ðZ=pZÞ n actions as k-automorphisms of k½½t: # 2002 Elsevier Science (USA)