نتایج جستجو برای: mathcal c reticulation

تعداد نتایج: 1063285  

Journal: :International Mathematics Research Notices 2021

When the reduced twisted $C^*$-algebra $C^*_r(\mathcal{G}, c)$ of a non-principal groupoid $\mathcal{G}$ admits Cartan subalgebra, Renault's work on subalgebras implies existence another description c)$. In an earlier paper, joint with Reznikoff and Wright, we identified situations where such subalgebra arises from subgroupoid $\mathcal{S}$ $\mathcal{G}$. this study relationship between origina...

Journal: :iranian journal of fuzzy systems 2015
a. amini-harandi d. mihet

we consider the concept of fuzzy quasi-contractions initiated by '{c}iri'{c} in the setting of fuzzy metric spaces and establish fixed point theorems for quasi-contractive mappings and for fuzzy $mathcal{h}$-contractive mappings on m-complete fuzzy metric spaces in the sense of george and veeramani.the results are illustrated by a representative example.

Journal: :Systematic biology 2006
Mihaela Baroni Charles Semple Mike Steel

We describe some new and recent results that allow for the analysis and representation of reticulate evolution by non-tree networks. In particular, we (1) present a simple result to show that, despite the presence of reticulation, there is always a well-defined underlying tree that corresponds to those parts of life that do not have a history of reticulation; (2) describe and apply new theory f...

Journal: :Journal of The Mathematical Society of Japan 2021

The notion of extriangulated category was introduced by Nakaoka and Palu giving a simultaneous generalization exact categories triangulated categories. Our first aim is to provide an extension Auslander's formula: for some $\mathcal{C}$, there exists localization sequence $\operatorname{def}\mathcal{C} \to \mod\mathcal{C} \operatorname{lex}\mathcal{C}$, where $\operatorname{lex}\mathcal{C}$ den...

Journal: :CoRR 2016
Andreas D. M. Gunawan Bhaskar DasGupta Louxin Zhang

In phylogenetics, phylogenetic trees are rooted binary trees, whereas phylogenetic networks are rooted arbitrary acyclic digraphs. Edges are directed away from the root and leaves are uniquely labeled with taxa in phylogenetic networks. For the purpose of validating evolutionary models, biologists check whether or not a phylogenetic tree is contained in a phylogenetic network on the same taxa. ...

2010
JOSE MARIA AGUILAR-CAMACHO JOSE LUIS CARBALLO

Chalinidae is a family of haplosclerid sponges with a delicate reticulated chaonosomal skeleton of uni-, paucior multispicular primary lines which are connected by unispicular secondary lines, and with an ectosomal skeleton, if present, formed by a regular hexagonal, unispicular, tangential reticulation (Weerdt 2002). Currently, the family harbors only five valid genera (Chalinula, Cladocroce, ...

Journal: :Inf. Comput. 2017
Andreas D. M. Gunawan Bhaskar DasGupta Louxin Zhang

In studies of molecular evolution, phylogenetic trees are rooted binary trees, whereas phylogenetic networks are rooted acyclic digraphs. Edges are directed away from the root and leaves are uniquely labeled with taxa in phylogenetic networks. For the purpose of validating evolutionary models, biologists check whether or not a phylogenetic tree (resp. cluster) is contained in a phylogenetic net...

Journal: :Revista De La Union Matematica Argentina 2021

We consider cyclic codes $\mathcal{C}_\mathcal{L}$ associated to quadratic trace forms in $m$ variables $Q_R(x) = \operatorname{Tr}_{q^m/q}(xR(x))$ determined by a family $\mathcal{L}$ of $q$-linearized polynomials $R$ over $\mathbb{F}_{q^m}$, and three related $\mathcal{C}_{\mathcal{L},0}$, $\mathcal{C}_{\mathcal{L},1}$ $\mathcal{C}_{\mathcal{L},2}$. describe the spectra for all these when is ...

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