Geodesic
Stratification of the discriminant in Reflection groups.
Manuscripta mathematica, Tome 64 (1989) no. 2, pp. 377-388.

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Mots-clés : finite unitary reflection group, orbit map, reflecting hyperplanes, homogeneous basic invariants, orbit stratification, variety, determinants, minors, discriminant matrix, Coxeter groups 
@article{MM2_1989__64_2_155413,
     author = {Peter Orlik},
     title = {Stratification of the discriminant in {Reflection} groups.},
     journal = {Manuscripta mathematica},
     pages = {377--388},
     publisher = {mathdoc},
     volume = {64},
     number = {2},
     year = {1989},
     zbl = {0674.20025},
     url = {http://geodesic.mathdoc.fr/item/MM2_1989__64_2_155413/}
}
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Peter Orlik. Stratification of the discriminant in Reflection groups.. Manuscripta mathematica, Tome 64 (1989) no. 2, pp. 377-388. http://geodesic.mathdoc.fr/item/MM2_1989__64_2_155413/