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pro vyhledávání: '"Kindler, Lars"'
We show that bounding ramification at infinity bounds fierce ramification. This answers positively a question of Deligne posed to the first named author.
Comment: latex, 9 pages
Comment: latex, 9 pages
Externí odkaz:
http://arxiv.org/abs/1812.03404
Autor:
Kindler, Lars
A finite \'etale map between irreducible, normal varieties is called tame, if it is tamely ramified with respect to all partial compactifications whose boundary is the support of a strict normal crossings divisor. We prove that if the Galois group of
Externí odkaz:
http://arxiv.org/abs/1606.08592
Autor:
Battiston, Giulia, Kindler, Lars
A separable, proper morphism of varieties with geometrically connected fibers induces a homotopy exact sequence relating the \'etale fundamental groups of source, target and fiber. Extending work of dos Santos, we prove the existence of an analogous
Externí odkaz:
http://arxiv.org/abs/1606.08242
Autor:
Esnault, Hélène, Kindler, Lars
As is well known, the Lefschetz theorems for the \'etale fundamental group of SGA1 do not hold. We fill a small gap in the literature showing they do for tame coverings. Let $X$ be a regular projective variety over a field $k$, and let $D\hookrightar
Externí odkaz:
http://arxiv.org/abs/1509.08160
Autor:
Kindler, Lars
A stratified bundle is a vector bundle which is a D-module. We show that regular singularity of stratified bundles on smooth varieties in positive characteristic is preserved by pullback and that regular singularity can be checked on curves, if the g
Externí odkaz:
http://arxiv.org/abs/1410.5172
Autor:
Kindler, Lars, Rülling, Kay
These are the notes accompanying 13 lectures given by the authors at the Clay Mathematics Institute Summer School 2014 in Madrid. The notes give an introduction into the theory of $\ell$-adic sheaves with emphasis on their ramification theory on curv
Externí odkaz:
http://arxiv.org/abs/1409.6899
Autor:
Kindler, Lars
In "On the calculation of some differential Galois groups" (Invent. Math. 87 (1987), no. 1), Katz defines the notion of a special flat connection on the complex affine line minus the origin, and he shows that the functor which restricts a flat connec
Externí odkaz:
http://arxiv.org/abs/1311.6317
Publikováno v:
In Journal of Algebra 15 June 2019 528:250-259
Autor:
Kindler, Lars
Publikováno v:
Documenta Math. 18 (2013) 1215--1242
Let X be a smooth, connected, projective variety over an algebraically closed field of positive characteristic. In "Flat vector bundles and the fundamental group in non-zero characteristics" (Ann. Scuola Norm. Sup. Pisa Cl. Sci. (4) 2 (1975)), Giesek
Externí odkaz:
http://arxiv.org/abs/1210.7634