Functorial Einstein Algebras and the Malicious Singularity
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866909482947182592 |
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| author | Heller, Michael Miller, Tomasz Pysiak, Leszek Sasin, Wiesław |
| author_facet | Heller, Michael Miller, Tomasz Pysiak, Leszek Sasin, Wiesław |
| contents | Einstein algebra, the concept due to Geroch, is essentially general relativity in an algebraic disguise. We introduce the concept of Einstein-Grassmann algebra as a superalgebra (defining a supermanifold) which is also an Einstein algebra. We employ this concept to confront the supermanifold structure with the structure of strong singularity, the so-called malicious singularity, in general relativity. Einstein-Grassmann algebras consist of two parts: a part called body and a part called soul. For the body part, the singularity theorems apply and the singularities persist as the conclusions of the classical theorems on the existence of singularities require. We prove that, if we relax algebraical requirements, the soul part of the algebra can survive the malicious singularity. In particular, we study the behaviour of supercurves in the presence of malicious singularity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_04972 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Functorial Einstein Algebras and the Malicious Singularity Heller, Michael Miller, Tomasz Pysiak, Leszek Sasin, Wiesław Mathematical Physics 58A40, 83C75, 15A75, 58A50 Einstein algebra, the concept due to Geroch, is essentially general relativity in an algebraic disguise. We introduce the concept of Einstein-Grassmann algebra as a superalgebra (defining a supermanifold) which is also an Einstein algebra. We employ this concept to confront the supermanifold structure with the structure of strong singularity, the so-called malicious singularity, in general relativity. Einstein-Grassmann algebras consist of two parts: a part called body and a part called soul. For the body part, the singularity theorems apply and the singularities persist as the conclusions of the classical theorems on the existence of singularities require. We prove that, if we relax algebraical requirements, the soul part of the algebra can survive the malicious singularity. In particular, we study the behaviour of supercurves in the presence of malicious singularity. |
| title | Functorial Einstein Algebras and the Malicious Singularity |
| topic | Mathematical Physics 58A40, 83C75, 15A75, 58A50 |
| url | https://arxiv.org/abs/2502.04972 |