Results 121 to 130 of about 10,951 (224)

Component graphs of vector spaces and zero-divisor graphs of ordered sets

open access: yesAKCE International Journal of Graphs and Combinatorics
In this paper, nonzero component graphs and nonzero component union graphs of finite-dimensional vector spaces are studied using the zero-divisor graph of a specially constructed 0–1-distributive lattice and the zero-divisor graph of rings.
Nilesh Khandekar   +2 more
doaj   +1 more source

Soybean Inositol Polyphosphate 5‐Phosphatase 8 Confers Salt Tolerance by Reducing Sodium Influx Through Inositol 1,4,5‐Trisphosphate Signalling

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Evidence suggests that the metabolism of inositol and its derivatives may be involved in various biological processes including salt tolerance, but there has been limited understanding. Ectopic expression of Gs5PTase8, an inositol polyphosphate 5‐phosphatase cloned from wild soybean (Glycine soja), significantly enhanced salt tolerance in ...
Qi Jia   +12 more
wiley   +1 more source

Unique Perfect Phylogeny Characterizations via Uniquely Representable Chordal Graphs

open access: yes, 2013
The perfect phylogeny problem is a classic problem in computational biology, where we seek an unrooted phylogeny that is compatible with a set of qualitative characters.
Gysel, Rob
core  

Where Are the Gaps in Diabetes Care? An Evidence Gap Mapping of the Diabetes Patient Journey in Indonesia

open access: yesTropical Medicine &International Health, EarlyView.
ABSTRACT Objective Understanding the diabetes patient journey, from awareness, screening, diagnosis, treatment, adherence and control, is crucial for improving outcomes. However, in many low‐ and middle‐income countries, including Indonesia, data across this continuum of care remain limited due to limited health information exchange capacity.
Rachmadianti S. Hanifa   +5 more
wiley   +1 more source

A New Characterization of Unichord-Free Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2015
Unichord-free graphs are defined as having no cycle with a unique chord. They have appeared in several papers recently and are also characterized by minimal separators always inducing edgeless subgraphs (in contrast to characterizing chordal graphs by ...
McKee Terry A.
doaj   +1 more source

Backbone colouring of chordal graphs

open access: yesProcedia Computer Science
A proper $k$-colouring of a graph $G=(V,E)$ is a function $c: V(G)\to \{1,\ldots,k\}$ such that $c(u)\neq c(v)$ for every edge $uv\in E(G)$. The chromatic number $χ(G)$ is the minimum $k$ such that there exists a proper $k$-colouring of $G$. Given a spanning subgraph $H$ of $G$, a $q$-backbone $k$-colouring of $(G,H)$ is a proper $k$-colouring $c$ of ...
Araújo, Júlio   +2 more
openaire   +4 more sources

Integrated Orbitrap‐HRMS and Chemometric Profiling Reveals Metabolite Diversity and Antioxidant Signatures in Cerrado Eugenia Fruits

open access: yesAnalytical Science Advances, Volume 7, Issue 1, June 2026.
ABSTRACT Fruits from the Brazilian Cerrado, such as pitanga (Eugenia uniflora), jambolao (E. jambolana) and murta (E. punicifolia), are recognized for their nutritional and therapeutic potential, largely due to their phenolic‐rich profiles. However, systematic studies integrating high‐resolution mass spectrometry (HRMS) with chemometric tools to ...
Alexandre W. V. Nascimento   +8 more
wiley   +1 more source

Strongly Unichord-Free Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2019
Several recent papers have investigated unichord-free graphs—the graphs in which no cycle has a unique chord. This paper proposes a concept of strongly unichord-free graph, defined by being unichord-free with no cycle of length 5 or more having exactly ...
McKee Terry A.
doaj   +1 more source

Robust Inverse Material Design With Physical Guarantees Using the Voigt‐Reuss Net

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 7, 15 April 2026.
ABSTRACT We apply the Voigt‐Reuss net, a spectrally normalized neural surrogate introduced in [38], for forward and inverse mechanical homogenization with a key guarantee that all predicted effective stiffness tensors satisfy Voigt‐Reuss bounds in the Löwner sense during training, inference, and gradient‐driven optimization.
Sanath Keshav, Felix Fritzen
wiley   +1 more source

Isoperimetric inequalities on slabs with applications to cubes and Gaussian slabs

open access: yesCommunications on Pure and Applied Mathematics, Volume 79, Issue 4, Page 1012-1072, April 2026.
Abstract We study isoperimetric inequalities on “slabs”, namely weighted Riemannian manifolds obtained as the product of the uniform measure on a finite length interval with a codimension‐one base. As our two main applications, we consider the case when the base is the flat torus R2/2Z2$\mathbb {R}^2 / 2 \mathbb {Z}^2$ and the standard Gaussian measure
Emanuel Milman
wiley   +1 more source

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