Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8896299 | Journal of Algebra | 2018 | 34 Pages |
Abstract
An algebra V with a cross product à has dimension 3 or 7. In this work, we use 3-tangles to describe, and provide a basis for, the space of homomorphisms from Vân to Vâm that are invariant under the action of the automorphism group Aut(V,Ã) of V, which is a special orthogonal group when dimV=3, and a simple algebraic group of type G2 when dimV=7. When m=n, this gives a graphical description of the centralizer algebra EndAut(V,Ã)(Vân), and therefore, also a graphical realization of the Aut(V,Ã)-invariants in Vâ2n equivalent to the First Fundamental Theorem of Invariant Theory. We show how the 3-dimensional simple Kaplansky Jordan superalgebra can be interpreted as a cross product (super)algebra and use 3-tangles to obtain a graphical description of the centralizers and invariants of the Kaplansky superalgebra relative to the action of the special orthosymplectic group.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory
Authors
Georgia Benkart, Alberto Elduque,