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| Main Author: | |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2604.05252 |
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Table of Contents:
- We analyze the triviality of inhomogeneous $γ$-deformations of the oscillator Lie superalgebra $B(0,n) = \mathfrak{osp}(1|2n)$. As the main theorem, we show that for $n \geq 2$, the $γ$-deformation is trivial if and only if all deformation parameters vanish. The proof is based on the explicit construction of $2n$ certificates (left null space vectors $c$ satisfying $c^\top A_μ= 0$ and $c^\top L_μ\neq 0$) for the structure constant matrices $A_μ$ of the coboundary operator. We provide a unified construction of certificates classified into three Families, and in particular clarify the geometric meaning of the coefficient $1 + δ_{n,2}$ that appears in the Family~III certificate. We also discuss the contrast with the exceptional case of $B(0,1) = \mathfrak{osp}(1|2)$ (where all deformations are trivial). As an appendix, we outline the computational verification performed using exact rational arithmetic over $\mathbb{Q}$.