English

On a Grassmann odd analogue of Carrollian Manifolds

Differential Geometry 2026-01-07 v3 General Relativity and Quantum Cosmology Mathematical Physics math.MP

Abstract

We define a Grassmann odd analogue of a Carrollian manifold as a supermanifold of dimension n1n|1 with an even degenerate metric such that the kernel is generated by a non-singular odd vector field that is a supersymmetry generator. Alongside other results, we establish that the reduced manifold is a pseudo-Riemannian manifold, and show that compatible affine connections always exist, albeit they must carry torsion. As a physically relevant example, we examine an In\"on\"u--Wigner contraction of the supertranslation algebra on standard superspace R44\mathbb{R}^{4|4}.

Keywords

Cite

@article{arxiv.2508.14240,
  title  = {On a Grassmann odd analogue of Carrollian Manifolds},
  author = {Andrew James Bruce},
  journal= {arXiv preprint arXiv:2508.14240},
  year   = {2026}
}

Comments

15 pages. The title has been changed, the nomenclature amended, and mistakes/misunderstandings corrected