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arXiv · 2401.11299

Multivector Contractions Revisited, Part II

André L. G. Mandolesi
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Abstract

The theory of contractions of multivectors, and star duality, was reorganized in a previous article, and here we present some applications. First, we study inner and outer spaces associated to a general multivector $M$ via the equations $v \wedge M = 0$ and $v \lrcorner M=0$. They are then used to analyze special decompositions, factorizations and `carvings' of $M$, to define generalized grades, and to obtain new simplicity criteria, including a reduced set of Pl\"ucker-like relations. We also discuss how contractions are related to supersymmetry, and give formulas for supercommutators of multi-fermion creation and annihilation operators.

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André L. G. Mandolesi. 2024-01-20. Multivector Contractions Revisited, Part II. https://doi.org/10.1007/s00006-024-01358-3

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