Displaying similar documents to “Symmetric simplicial pseudoline arrangements.”

A Relation between the Weyl Group W(e8) and Eight-Line Arrangements on a Real Projective Plane

Fukui, Tetsuo, Sekiguchi, Jiro (2007)

Serdica Journal of Computing

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The paper has been presented at the 12th International Conference on Applications of Computer Algebra, Varna, Bulgaria, June, 2006. The Weyl group W(E8) acts on the con guration space of systems of labelled eight lines on a real projective plane. With a system of eight lines with a certain condition, a diagram consisting of ten roots of the root system of type E8 is associated. We have already shown the existence of a W(E8)-equivariant map of the totality of such diagrams...

Freeness of hyperplane arrangements and related topics

Masahiko Yoshinaga (2014)

Annales de la faculté des sciences de Toulouse Mathématiques

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These are the expanded notes of the lecture by the author in “Arrangements in Pyrénées”, June 2012. We are discussing relations of freeness and splitting problems of vector bundles, several techniques proving freeness of hyperplane arrangements, K. Saito’s theory of primitive derivations for Coxeter arrangements, their application to combinatorial problems and related conjectures.