Outer and inner medians in some small lattices
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866915872863420416 |
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| author | Aburub, Leen Gyenizse, Gergo |
| author_facet | Aburub, Leen Gyenizse, Gergo |
| contents | By median we mean a scheme that inputs three element of a lattice, and outputs an element that is an average of the three inputs in a certain sense. The medians of a given finite lattice form a new lattice that is usually larger than the original, but generates a (not necessarily strictly) smaller variety. A median is called inner if it is a term function. The inner median lattice is closely related to the symmetric part of the equational basis of the lattice. We determine the outer and inner median lattices of all lattices of at most six elements. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2603_17958 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Outer and inner medians in some small lattices Aburub, Leen Gyenizse, Gergo Combinatorics 06B25, 06B20 By median we mean a scheme that inputs three element of a lattice, and outputs an element that is an average of the three inputs in a certain sense. The medians of a given finite lattice form a new lattice that is usually larger than the original, but generates a (not necessarily strictly) smaller variety. A median is called inner if it is a term function. The inner median lattice is closely related to the symmetric part of the equational basis of the lattice. We determine the outer and inner median lattices of all lattices of at most six elements. |
| title | Outer and inner medians in some small lattices |
| topic | Combinatorics 06B25, 06B20 |
| url | https://arxiv.org/abs/2603.17958 |