The goal of this paper is to compute the cuspidal Calogero-Moser
families for all infinite families of finite Coxeter groups, at all
parameters. We do this by first computing the symplectic leaves of the
associated Calogero-Moser space and then by classifying certain
``rigid'' modules. Numerical evidence suggests that there is a very
close relationship between Calogero-Moser families and Lusztig families.
Our classification shows that, additionally, the cuspidal Calogero-Moser
families equal cuspidal Lusztig families for the infinite families of
Coxeter groups. (C) 2016 Elsevier Inc. All rights reserved.
The authors would like to thank Cedric Bonnafe and Meinolf Geck for many
fruitful discussions. We also thank Dan Ciubotaru for informing us about
his preprint 14 and his result that for E<INF>7</INF> the cuspidal
Lusztig family does not contain rigid modules. Moreover, we would like
to thank Gunter Malle for commenting on a preliminary version of this
article. The second author was partially supported by the DFG
Schwerpunktprogramm 1489.
%0 Journal Article
%1 ISI:000380382100011
%A Bellamy, Gwyn
%A Thiel, Ulrich
%C 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
%D 2016
%I ACADEMIC PRESS INC ELSEVIER SCIENCE
%J JOURNAL OF ALGEBRA
%K Calogero-Moser Cherednik Hecke Symplectic algebras; groups; leaves} reflection spaces; {Complex
%P 197-252
%R 10.1016/j.jalgebra.2016.06.003
%T Cuspidal Calogero-Moser and Lusztig families for Coxeter groups
%V 462
%X The goal of this paper is to compute the cuspidal Calogero-Moser
families for all infinite families of finite Coxeter groups, at all
parameters. We do this by first computing the symplectic leaves of the
associated Calogero-Moser space and then by classifying certain
``rigid'' modules. Numerical evidence suggests that there is a very
close relationship between Calogero-Moser families and Lusztig families.
Our classification shows that, additionally, the cuspidal Calogero-Moser
families equal cuspidal Lusztig families for the infinite families of
Coxeter groups. (C) 2016 Elsevier Inc. All rights reserved.
@article{ISI:000380382100011,
abstract = {{The goal of this paper is to compute the cuspidal Calogero-Moser
families for all infinite families of finite Coxeter groups, at all
parameters. We do this by first computing the symplectic leaves of the
associated Calogero-Moser space and then by classifying certain
``rigid{''} modules. Numerical evidence suggests that there is a very
close relationship between Calogero-Moser families and Lusztig families.
Our classification shows that, additionally, the cuspidal Calogero-Moser
families equal cuspidal Lusztig families for the infinite families of
Coxeter groups. (C) 2016 Elsevier Inc. All rights reserved.}},
added-at = {2017-05-18T11:32:12.000+0200},
address = {{525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA}},
affiliation = {{Thiel, U (Reprint Author), Univ Stuttgart, Fachbereich Math, Inst Algebra \& Zahlentheorie, Lehrstuhl Algebra, Pfaffenwaldring 57, D-70569 Stuttgart, Germany.
Bellamy, Gwyn, Univ Glasgow, Sch Math \& Stat, Glasgow G12 8QW, Lanark, Scotland.
Thiel, Ulrich, Univ Stuttgart, Fachbereich Math, Inst Algebra \& Zahlentheorie, Lehrstuhl Algebra, Pfaffenwaldring 57, D-70569 Stuttgart, Germany.}},
author = {Bellamy, Gwyn and Thiel, Ulrich},
author-email = {{gwyn.bellamy@glasgow.ac.uk
thiel@mathematik.uni-stuttgart.de}},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2f23cd11b9935b57e1537e6427907985c/hermann},
doi = {{10.1016/j.jalgebra.2016.06.003}},
eissn = {{1090-266X}},
funding-acknowledgement = {{DFG Schwerpunktprogramm {[}1489]}},
funding-text = {{The authors would like to thank Cedric Bonnafe and Meinolf Geck for many
fruitful discussions. We also thank Dan Ciubotaru for informing us about
his preprint {[}14] and his result that for E<INF>7</INF> the cuspidal
Lusztig family does not contain rigid modules. Moreover, we would like
to thank Gunter Malle for commenting on a preliminary version of this
article. The second author was partially supported by the DFG
Schwerpunktprogramm 1489.}},
interhash = {1e2bb6cf3e8e1fec0bf054d279d08f66},
intrahash = {f23cd11b9935b57e1537e6427907985c},
issn = {{0021-8693}},
journal = {{JOURNAL OF ALGEBRA}},
keywords = {Calogero-Moser Cherednik Hecke Symplectic algebras; groups; leaves} reflection spaces; {Complex},
keywords-plus = {{RATIONAL CHEREDNIK ALGEBRAS; SYMPLECTIC REFLECTION ALGEBRAS; HECKE
ALGEBRAS; PARTITION; SUBGROUPS; SPACE; G(M; N)}},
language = {{English}},
month = {{SEP 15}},
number-of-cited-references = {{43}},
orcid-numbers = {{Bellamy, Gwyn/0000-0002-7045-4177}},
pages = {{197-252}},
publisher = {{ACADEMIC PRESS INC ELSEVIER SCIENCE}},
research-areas = {{Mathematics}},
researcherid-numbers = {{Bellamy, Gwyn/C-4966-2014}},
times-cited = {{0}},
timestamp = {2017-05-18T09:32:12.000+0200},
title = {{Cuspidal Calogero-Moser and Lusztig families for Coxeter groups}},
type = {{Article}},
volume = {{462}},
web-of-science-categories = {{Mathematics}},
year = {{2016}}
}