List questions from lattice-orders

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Ordered Sets and Lattices

Published on 28 Feb 2019 - 5:17

190

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Show that each edge of the cyclic polytope $C_4(6)$ is contained in either three or four facets, and either three or four 2-faces.

Published on 25 Mar 2026 - 9:29

68

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Equivalence of Frankl's Conjecture

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Describing maximal orders in quaternion algebras.

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Equipping finite space with metric

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Cardinality of Sub(A) is smaller than ${\aleph_0}$ or equal $2^{\aleph_0}$?

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35

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Does this equality hold for all lattices with a top?

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89

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Proof if Meet-homomorphism and Join-homomorphism satisfies, then it implies order-homomorphism

Published on 12 Mar 2019 - 16:25

47

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Sets equipped with sublattice of their power sets

Published on 13 Mar 2019 - 6:45

97

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Showing equality of 2 suprema in complete lattice

Published on 13 Mar 2019 - 12:21

821

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What are the smallest sets of $n$-permutations of $\{1, 2, \ldots, n\}$ where all n-combinations are "prefix-permutation" of one element of the set?

Published on 13 Mar 2019 - 13:14

279

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Representation of sigma complete Boolean algebras

Published on 14 Mar 2019 - 4:29

147

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CEP for (distributive) lattices and groups?

Published on 25 Mar 2026 - 4:38

126

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If $(\alpha,\beta)$ is the factor pair congruences of algebra $\mathbb{A},$ ia $(\forall \gamma\in ConA)\alpha\circ\gamma=\gamma\circ\beta?$

Published on 25 Mar 2026 - 4:42

List Question

closed lattice ideal is isomorphic to $C(K)$

Ordered Sets and Lattices

Show that each edge of the cyclic polytope $C_4(6)$ is contained in either three or four facets, and either three or four 2-faces.

Equivalence of Frankl's Conjecture

Describing maximal orders in quaternion algebras.

Equipping finite space with metric

Cardinality of Sub(A) is smaller than ${\aleph_0}$ or equal $2^{\aleph_0}$?

Does this equality hold for all lattices with a top?

Proof if Meet-homomorphism and Join-homomorphism satisfies, then it implies order-homomorphism

Sets equipped with sublattice of their power sets

Showing equality of 2 suprema in complete lattice

What are the smallest sets of $n$-permutations of $\{1, 2, \ldots, n\}$ where all n-combinations are "prefix-permutation" of one element of the set?

Representation of sigma complete Boolean algebras

CEP for (distributive) lattices and groups?

If $(\alpha,\beta)$ is the factor pair congruences of algebra $\mathbb{A},$ ia $(\forall \gamma\in ConA)\alpha\circ\gamma=\gamma\circ\beta?$

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