Extended affine root systems. II. Flat invariants
نویسندگان
چکیده
منابع مشابه
Extended Affine Root Systems
There are two notions of the extended affine root systems in the literature which both are introduced axiomatically. One, extended affine root system (SAERS for short), consists only of nonisotropic roots, while the other, extended affine root system (EARS for short), contains certain isotropic roots too. We show that there is a one to one correspondence between (reduced) SEARSs and EARSs. Name...
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ژورنال
عنوان ژورنال: Publications of the Research Institute for Mathematical Sciences
سال: 1990
ISSN: 0034-5318
DOI: 10.2977/prims/1195171662