Results 21 to 30 of about 480,859 (244)

Interval-Valued Fuzzy Soft Graphs

open access: yesTopological Algebra and its Applications, 2017
In this paper, we combine concepts of interval-valued fuzzy soft sets and graph theory. Then we introduce notations of interval-valued fuzzy soft graphs and complete interval-valued fuzzy soft graphs.
Zihni Onur   +2 more
doaj   +1 more source

Closed orders and closed graphs

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
The class of closed graphs by a linear ordering on their sets of vertices is investigated. A recent characterization of such a class of graphs is analyzed by using tools from the proper interval graph theory.
Crupi Marilena
doaj   +1 more source

On Strong Intervals in Fuzzy Graphs

open access: yesFuzzy Information and Engineering, 2017
Intervals and convexity play crucial roles in the applications of graph theory such as town planning and design of graphics. In this article, the concept of geodetic interval in graphs is extended to fuzzy graphs.
M.V. Dhanyamol, Sunil Mathew
doaj   +1 more source

EPG-representations with small grid-size [PDF]

open access: yes, 2017
In an EPG-representation of a graph $G$ each vertex is represented by a path in the rectangular grid, and $(v,w)$ is an edge in $G$ if and only if the paths representing $v$ an $w$ share a grid-edge. Requiring paths representing edges to be x-monotone or,
A Asinowski   +11 more
core   +2 more sources

"Building" exact confidence nets [PDF]

open access: yes, 2016
Confidence nets, that is, collections of confidence intervals that fill out the parameter space and whose exact parameter coverage can be computed, are familiar in nonparametric statistics.
Francis, Andrew R.   +2 more
core   +2 more sources

Robust Consensus in a Class of Fractional-Order Multi-Agent Systems with Interval Uncertainties Using the Existence Condition of Hermitian Matrices

open access: yesAxioms, 2023
This study outlines the necessary and sufficient criteria for swarm stability asymptotically, meaning consensus in a class of fractional-order multi-agent systems (FOMAS) with interval uncertainties for both fractional orders 0 < α < 1 and 1 < α < 2. The
Mohammadreza Riazat   +3 more
doaj   +1 more source

Leanness Computation: Small Values and Special Graph Classes [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science
Let u and v be vertices in a connected graph G = (V, E). For any integer k such that 0 ≤ k ≤ dG (u, v), the k-slice Sk (u, v) contains all vertices x on a shortest uv-path such that dG (u, x) = k.
David Coudert   +2 more
doaj   +1 more source

A lower bound for nodal count on discrete and metric graphs

open access: yes, 2006
According to a well-know theorem by Sturm, a vibrating string is divided into exactly N nodal intervals by zeros of its N-th eigenfunction. Courant showed that one half of Sturm's theorem for the strings applies to the theory of membranes: N-th ...
A.M. Duval   +17 more
core   +3 more sources

Solving the shortest path Problem in an interval-valued Neutrosophic Pythagorean environment using an enhanced A* search algorithm [PDF]

open access: yesNeutrosophic Sets and Systems
The A* search algorithm is widely utilized to evaluate the shortest path in a given network. However, in a traditional A* search algorithm, the nodes are assumed to have crisp values, i.e., a single value.
Prasanta Kumar Raut   +4 more
doaj   +1 more source

Modeling of Transport and Logistics Systems and the Study of the Structural Stability

open access: yesУправленческие науки, 2020
The structural stability of the system to external influences is an important parameter of the transport and logistics task. In modern literature, the concept of structural stability is defined as applied to each individual problem, as a result of which ...
D. V. Yatskin   +2 more
doaj   +1 more source

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