@article {Pagot:November 2002:0022-314X:58,
	author = "Pagot G.",
	title = "Fp-espaces vectoriels de formes differentielles logarithmiques sur la droite projective",
	journal = "Journal of Number Theory",
	volume = "97",
	year = "November 2002",
	abstract = "<P>Let <B>k</B> be an algebraically closed field of characteristic <B>p</B>&#062;0. Let <B>m</B><IMG SRC="/iso-ents/isotech/isin.gif" ALT="isin"><IMG SRC="/iso-ents/isomopf/nopf-c.gif" ALT="Nopf">, (<B>m</B>,<B>p</B>)=1. We study <IMG SRC="/iso-ents/isomopf/fopf-c.gif" ALT="Fopf"><SUB><B>p</B></SUB>-vector spaces of logarithmic differential forms on the projective line such that each non-zero form has a unique zero at <B><IMG SRC="/iso-ents/isotech/infin.gif" ALT="infin"></B> of given order <B>m</B>-1. We discuss the existence of such vectors spaces according to the value of <B>m</B>. We give applications to the lifting to characteristic 0 of (<IMG SRC="/iso-ents/isomopf/zopf-c.gif" ALT="Zopf">/<B>p</B><IMG SRC="/iso-ents/isomopf/zopf-c.gif" ALT="Zopf">)<SUP><B>n</B></SUP> actions as <B>k</B>-automorphisms of <B>k</B>[[<B>t</B>]]. <B>&#169; 2002 Elsevier Science (USA).</B></P>",
	pages = "58-94(37)",
	url = "http://www.ingentaconnect.com/content/ap/nt/2002/00000097/00000001/art02806"
	doi = "doi:10.1006/jnth.2002.2806"
}