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A339248 List of dimensions for which there exist several non-isomorphic irreducible representations of G2. 1

%I #24 Mar 28 2021 15:24:54

%S 77,2079,4928,30107,56133,133056,315392,812889,1203125,1515591,

%T 1926848,3592512,8515584,9058973,20185088,21948003,32484375,40920957,

%U 52024896,77000000,96997824,123318272,136410197,229920768,244592271,342513171,371664293,470421875

%N List of dimensions for which there exist several non-isomorphic irreducible representations of G2.

%C Terms which could be repeated in A104599.

%C There are infinitely many terms in this sequence as the dimension formula is homogeneous of degree 6; see A181746.

%D N. Bourbaki, Lie Groups and Lie Algebras, Chapters 4-6, Springer, 1968, 231-233.

%H Andy Huchala, <a href="/A339248/b339248.txt">Table of n, a(n) for n = 1..20000</a>

%H Andy Huchala, <a href="/A339248/a339248.cpp.txt">C++ program</a>

%H Wikipedia, <a href="https://en.wikipedia.org/wiki/G2_(mathematics)">G2 (mathematics)</a>

%F Given a vector of 2 nonnegative integers, the Weyl dimension formula tells you the dimension of the corresponding irreducible representation. The list of such dimensions is then sorted numerically and duplicates recorded.

%e With the fundamental weights numbered as in Bourbaki, the highest weights 3,0 and 0,2 both correspond to irreducible representations of dimension 77. The highest weights 2,3 and 8,0 both correspond to irreducible representations of dimension 2079.

%Y Cf. A181746, A104599.

%K nonn

%O 1,1

%A _Andy Huchala_, Nov 28 2020

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Last modified April 24 09:42 EDT 2024. Contains 371935 sequences. (Running on oeis4.)