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This is the construction / computation page for my joint paper with Roland van der Veen, An Unexpected Cyclic Symmetry of $I{\mathfrak u}_n$ (PDF here).

Abstract. We find and discuss an unexpected (to us) order $n$ cyclic group of automorphisms of the Lie algebra $I{\mathfrak u}_n:={\mathfrak u}_n\ltimes{\mathfrak u}_n^\ast$, where ${\mathfrak u}_n$ is the Lie algebra of upper triangular $n\times n$ matrices. Our results also extend to $gl_{n+}^\epsilon$, a "solvable approximation" of $gl_n$, as defined within.

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ExpectedAndUnexpected.pdf   Review1-1.pdf   Review1-3.pdf   Review2-1.pdf   Review2-2.pdf   UnexpectCyclicVerification.pdf   UnexpectedCyclic.pdf   /   Review1-2.txt

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1 index source 2020-01-31 06:08:21 2020-02-03 03:50:07
2 UnexpectCyclicVerification source 2020-01-23 10:35:57 2021-02-25 21:14:05 This is a feel-good verification notebook for the paper "An Unexpected Cyclic Symmetry of $Iu_n$" by Dror Bar-Natan and Roland van der Veen, written only to ascertain that the paper contains no calculation errors. It is available web-only at http://drorbn.net/UnexpectedCyclic, and is not a part of the paper itself. Continues pensieve://2020-01/ .