Results 51 to 60 of about 532 (199)
Discrete Mathematics & Theoretical Computer Science, 2013 In this extended abstract we consider the poset of weighted partitions Π _n^w, introduced by Dotsenko and Khoroshkin in their study of a certain pair of dual operads.
Rafael González S. D'León +1 more
doaj +1 more source
Phylogenetic Inference via Sequential Monte Carlo [PDF]
, 2012 Bayesian inference provides an appealing general framework for phylogenetic analysis, able to incorporate a wide variety of modeling assumptions and to provide a coherent treatment of uncertainty.
Alexandre Bouchard-Côté +59 more
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The ∞$\infty$‐categorical reflection theorem and applications
Journal of Topology, Volume 19, Issue 1, March 2026.Abstract We prove an ∞$\infty$‐categorical version of the reflection theorem of AdÁmek and Rosický [Arch. Math. 25 (1989), no. 1, 89–94]. Namely, that a full subcategory of a presentable ∞$\infty$‐category that is closed under limits and κ$\kappa$‐filtered colimits is a presentable ∞$\infty$‐category.
Shaul Ragimov, Tomer M. Schlank
wiley +1 more source
On categorical aspects of S -quantales
Open Mathematics, 2018 S-quantales are characterized as injective objects in the category of S-posets with respect to certain class of homomorphisms that are order-preserving mappings. This paper is devoted to exhibitions of categorical structures on S-quantales.
Zhang Xia, Zhou Yunyan
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Approximation Relations on the Posets of Pseudoultrametrics
Axioms, 2023 In this paper we study pseudoultrametrics, which are a natural mixture of ultrametrics and pseudometrics. They satisfy a stronger form of the triangle inequality than usual pseudometrics and naturally arise in problems of classification and recognition ...
Svyatoslav Nykorovych +2 more
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Rees factor S-posets satisfying Conditions (PWP)sw, (WP)sw and (Psw)
Proyecciones (Antofagasta)In [{\it Comm. Algebra}, vol. 37, pp. 1995-2007], Golchin and Rezaei gave necessary and sufficient conditions for a Rees factor $S$-post $S/K$, by a convex proper right ideal $K$, to satisfy Conditions $(PWP)$ or $(WP)$. They also introduced two new \ Conditions \ \ $(PWP)_w$ \ \ and \\$(WP)_w$. In [{\it J. Sci. Islam. Repub.
Leila Nouri, Pouyan Khamechi
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When do pseudo‐Gorenstein rings become Gorenstein?
Bulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.Abstract We discuss the relationship between the trace ideal of the canonical module and pseudo‐Gorensteinness. In particular, under certain mild assumptions, we show that every positively graded domain that is both pseudo‐Gorenstein and nearly Gorenstein is Gorenstein. As an application, we clarify the relationships among nearly Gorensteinness, almost
Sora Miyashita
wiley +1 more source
Computing metric hulls in graphs [PDF]
Discrete Mathematics & Theoretical Computer Science, 2019 We prove that, given a closure function the smallest preimage of a closed set can be calculated in polynomial time in the number of closed sets. This implies that there is a polynomial time algorithm to compute the convex hull number of a graph, when all
Kolja Knauer, Nicolas Nisse
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Torsion classes of extended Dynkin quivers over commutative rings
Bulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.Abstract For a Noetherian R$R$‐algebra Λ$\Lambda$, there is a canonical inclusion torsΛ→∏p∈SpecRtors(κ(p)Λ)$\mathop {\mathsf {tors}}\Lambda \rightarrow \prod _{\mathfrak {p}\in \operatorname{Spec}R}\mathop {\mathsf {tors}}(\kappa (\mathfrak {p})\Lambda)$, and each element in the image satisfies a certain compatibility condition.
Osamu Iyama, Yuta Kimura
wiley +1 more source
Tiled orders over a discrete valuation ring and Frobenius full matrix algebras with structure systems [PDF]
, 2008 Thesis (Ph. D. in Science)--University of Tsukuba, (A), no.
酒井 洋介
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