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On the Normal Subgroups of 
Authors:
Douglas L. Costa and Gordon E. Keller
Journal:
Trans. Amer. Math. Soc. 351 (1999), 5051-5088
MSC (1991):
Primary 20H05; Secondary 20G35
Published electronically:
August 25, 1999
MathSciNet review:
1487611
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Abstract: We give a characterization theorem for the  -normalized subgroups of  , where  is any commutative ring. This is the last of the simple Chevalley-Demazure group-schemes for which such a theorem is lacking.
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Additional Information
Douglas L. Costa
Affiliation:
Department of Mathematics, University of Virginia, Charlottesville, Virginia 22903-3199
Email:
dlc4v@virginia.edu
Gordon E. Keller
Affiliation:
Department of Mathematics, University of Virginia, Charlottesville, Virginia 22903-3199
Email:
gek@virginia.edu
DOI:
http://dx.doi.org/10.1090/S0002-9947-99-02231-X
PII:
S 0002-9947(99)02231-X
Received by editor(s):
April 1, 1997
Received by editor(s) in revised form:
May 22, 1997
Published electronically:
August 25, 1999
Additional Notes:
Research partially supported by NSA grant MDA 904-94-H-2008 and NSF grant DMS-9622899.
Article copyright:
© Copyright 1999
American Mathematical Society
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