Zobrazeno 1 - 10
of 127
pro vyhledávání: '"Teheux, Bruno"'
Publikováno v:
Logical Methods in Computer Science, Volume 20, Issue 3 (July 17, 2024) lmcs:12384
We study many-valued coalgebraic logics with semi-primal algebras of truth-degrees. We provide a systematic way to lift endofunctors defined on the variety of Boolean algebras to endofunctors on the variety generated by a semi-primal algebra. We show
Externí odkaz:
http://arxiv.org/abs/2308.14581
We study varieties generated by semi-primal lattice-expansions by means of category theory. We provide a new proof of the Keimel-Werner topological duality for such varieties and, using similar methods, establish its discrete version. We describe mul
Externí odkaz:
http://arxiv.org/abs/2301.13406
Publikováno v:
In Journal of Pure and Applied Algebra April 2024 228(4)
Autor:
Poiger, Wolfgang, Teheux, Bruno
We study the minor relation for algebra homomorphims in finitely generated quasivarieties that admit a logarithmic natural duality. We characterize the minor homomorphism posets of finite algebras in terms of disjoint unions of dual partition lattice
Externí odkaz:
http://arxiv.org/abs/2101.05545
Publikováno v:
Semigroup Forum 100 (3) (2020) 743-764
We investigate classifications of quasitrivial semigroups defined by certain equivalence relations. The subclass of quasitrivial semigroups that preserve a given total ordering is also investigated. In the special case of finite semigroups, we addres
Externí odkaz:
http://arxiv.org/abs/1811.11113
Autor:
Devillet, Jimmy, Teheux, Bruno
We characterize the associative, idempotent, symmetric, and order-preserving operations on (finite) chains in terms of properties of (the Hasse diagram of) their associated semilattice order. In particular, we prove that the number of associative, id
Externí odkaz:
http://arxiv.org/abs/1805.11936
Autor:
Couceiro, Miguel, Teheux, Bruno
We study pivotal decomposition schemes and investigate classes of pivotally decomposable operations. We provide sufficient conditions on pivotal operations that guarantee that the corresponding classes of pivotally decomposable operations are clones,
Externí odkaz:
http://arxiv.org/abs/1701.04192
Publikováno v:
Logical Methods in Computer Science (LMCS); 2024, Vol. 20 Issue 3, p6:1-6:32, 32p
Publikováno v:
Beitraege zur Algebra und Geometrie / Contributions to Algebra and Geometry 59 (2) (2018) 247-266
We introduce and discuss the concept of \emph{$n$-distance}, a generalization to $n$ elements of the classical notion of distance obtained by replacing the triangle inequality with the so-called simplex inequality $$ d(x_1, \ldots, x_n)~\leq~K\, \sum
Externí odkaz:
http://arxiv.org/abs/1611.07826
Autor:
Marichal, Jean-Luc, Teheux, Bruno
Publikováno v:
Aequationes Mathematicae 91 (2) (2017) 265-277
The so-called generalized associativity functional equation G(J(x,y),z) = H(x,K(y,z)) has been investigated under various assumptions, for instance when the unknown functions G, H, J, and K are real, continuous, and strictly monotonic in each variabl
Externí odkaz:
http://arxiv.org/abs/1607.08435