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A181746 List of dimensions for which there exist several non-isomorphic irreducible representations of E8. 6
8634368000, 175898504162692612600853299200000, 569584588357708246352221171200000000000, 30903356351561222538825891668691517440000, 75783579745006249731939558173442048000000, 221669803220344213547594484715842176665500, 11477043671509412495692698759458678235987968000 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Terms in this sequence are the terms which are repeated in A121732.
This sequence is infinitely long. For example, there exists two non-isomorphic irreducible E8 representations of dimension n^120 * 8634368000 for any n>0 (the dimension formula is homogeneous of degree 120 after a suitable change of variables). I have found no dimension with more than two non-isomorphic irreducible E8 representations. - Andy Huchala, Nov 22 2020
REFERENCES
N. Bourbaki, Lie Groups and Lie Algebras Chapters 4-6, Springer, 1968, 283-285.
LINKS
Andy Huchala, Java program
Andy Huchala, C++ program
EXAMPLE
With the fundamental weights numbered as in Bourbaki, the highest weights 10100000 and 10000011 both correspond to irreducible representations of dimension 8634368000. The highest weights 23000130 and 12000231 both correspond to irreducible representations of dimension 175898504162692612600853299200000.
CROSSREFS
Cf. A121732.
Sequence in context: A017375 A017495 A017627 * A185429 A154876 A270612
KEYWORD
nonn
AUTHOR
David A. Madore, Nov 08 2010
STATUS
approved

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Last modified February 29 16:02 EST 2024. Contains 370425 sequences. (Running on oeis4.)