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The subalgebras of $A_2$ (1509.00932v2)
Published 3 Sep 2015 in math.RA
Abstract: A classification of the semisimple subalgebras of the Lie algebra of traceless $3\times 3$ matrices with complex entries, denoted $A_2$, is well-known. We classify its nonsemisimple subalgebras, thus completing the classification of the subalgebras of $A_2$.