DOCUMENTA MATHEMATICA, Vol. 19 (2014), 509-540

Adrian Langer

Semistable Modules over Lie Algebroids in Positive Characteristic

We study Lie algebroids in positive characteristic and moduli spaces of their modules. In particular, we show a Langton's type theorem for the corresponding moduli spaces. We relate Langton's construction to Simpson's construction of gr-semistable Griffiths transverse filtration. We use it to prove a recent conjecture of Lan-Sheng-Zuo that semistable systems of Hodge sheaves on liftable varieties in positive characteristic are strongly semistable.

2010 Mathematics Subject Classification: 14D20, 14G17, 17B99

Keywords and Phrases: Lie algebroids, Langton's theorem, sheaves with connection, Higgs sheaves, positive characteristic

Full text: dvi.gz 74 k, dvi 214 k, ps.gz 212 k, pdf 307 k.