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Dive into the research topics where Kevin Langlois is active.

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Featured researches published by Kevin Langlois.


Archiv der Mathematik | 2017

The Cox ring of a complexity-one horospherical variety

Kevin Langlois; Ronan Terpereau

Cox rings are intrinsic objects naturally generalizing homogeneous coordinate rings of projective spaces. A complexity-one horospherical variety is a normal variety equipped with a reductive group action whose general orbit is horospherical and of codimension one. In this note, we provide a presentation by generators and relations for the Cox rings of complete rational complexity-one horospherical varieties.


arXiv: Algebraic Geometry | 2014

On the geometry of normal horospherical G-varieties of complexity one

Kevin Langlois; Ronan Terpereau


arXiv: Algebraic Geometry | 2014

Demazure roots and spherical varieties: the example of horizontal SL(2)-actions

Kevin Langlois; Alexander Perepechko


arXiv: Algebraic Geometry | 2016

On the classification of normal G-varieties with spherical orbits.

Kevin Langlois


arXiv: Algebraic Geometry | 2014

Intersection cohomology for projective contraction-free T-varieties of complexity one

Marta Agustin Vicente; Kevin Langlois


arXiv: Algebraic Geometry | 2018

Decomposition theorem and torus actions of complexity one.

Marta Agustin Vicente; Kevin Langlois


arXiv: Algebraic Geometry | 2018

Models of affine curves and Ga-actions

Kevin Langlois


arXiv: Algebraic Geometry | 2018

Horizontal Ga-actions on affine T-varieties of complexity one

Kevin Langlois


Revista Matematica Complutense | 2018

On intersection cohomology with torus actions of complexity one

Marta Agustin Vicente; Kevin Langlois


arXiv: Algebraic Geometry | 2017

Singularit\'es canoniques et actions horosph\'eriques

Kevin Langlois

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