Invariant Orders on Hermitian Lie Groups
Journal of Lie Theory, Tome 22 (2012) no. 2, pp. 437-463

Voir la notice de l'article provenant de la source Heldermann Verlag

We study three natural bi-invariant partial orders on a certain covering group of the automorphism group of a bounded symmetric domain of tube type; these orderings are defined using the geometry of the Shilov boundary, Lie semigroup theory and quasimorphisms respectively. Our main result shows that these orders are related by two inclusion relations. In the case of SL2(R), where R stands for the real numbers, we can show that they coincide. We also prove a related coincidence of orders for the universal covering of the group of homeomorphisms of the circle.
Classification : 06A06, 06F15, 11E57, 22E46, 51L99
Mots-clés : Hermitian Lie groups, invariant orders, quasimorphisms, Lie semigroups, bounded cohomology

Gabi Ben Simon  1   ; Tobias Hartnick  2

1 Departement Mathematik, ETH Zürich, Rämistr. 101, 8092 Zürich, Switzerland
2 Mathematics Department, Technion, Haifa 3200, Israel
Gabi Ben Simon; Tobias Hartnick. Invariant Orders on Hermitian Lie Groups. Journal of Lie Theory, Tome 22 (2012) no. 2, pp. 437-463. http://geodesic.mathdoc.fr/item/JOLT_2012_22_2_a3/
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     author = {Gabi Ben Simon and Tobias Hartnick},
     title = {Invariant {Orders} on {Hermitian} {Lie} {Groups}},
     journal = {Journal of Lie Theory},
     pages = {437--463},
     year = {2012},
     volume = {22},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/JOLT_2012_22_2_a3/}
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