Results 11 to 20 of about 839,618 (278)
To appear in STACS ...
Fedor V. Fomin +5 more
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On the Graph Fourier Transform for Directed Graphs [PDF]
To appear in IEEE Journal of Selected Topics in Signal Processing ...
Sardellitti, Stefania +2 more
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Chained structure of directed graphs with applications to social and transportation networks
The need to determine the structure of a graph arises in many applications. This paper studies directed graphs and defines the notions of $$\ell$$ ℓ -chained and $$\{\ell ,k\}$$ { ℓ , k } -chained directed graphs.
Anna Concas +4 more
doaj +1 more source
A Model of Directed Graph Cofiber
In the homotopy theory of spaces, the image of a continuous map is contractible to a point in its cofiber. This property does not apply when we discretize spaces and continuous maps to directed graphs and their morphisms.
Zachary McGuirk, Byungdo Park
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Direct reciprocity on graphs [PDF]
Direct reciprocity is a mechanism for the evolution of cooperation based on the idea of repeated encounters between the same two individuals. Here we examine direct reciprocity in structured populations, where individuals occupy the vertices of a graph. The edges denote who interacts with whom. The graph represents spatial structure or a social network.
Ohtsuki, Hisashi, Nowak, Martin
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Mann Iterative Algorithm in Convex Metric Spaces Endowed with a Directed Graph
Compared to the general metric space, the metric space endowed with a directed graph is more complex in space structure, and the directed graph itself does not have a linear structure, and it is relatively difficult to explore the problems of the fixed ...
YANGNi, CHENLili
doaj +1 more source
Simpler and Unified Recognition Algorithm for Path Graphs and Directed Path Graphs [PDF]
A path graph is the intersection graph of paths in a tree. A directed path graph is the intersection graph of paths in a directed tree. Even if path graphs and directed path graphs are characterized very similarly, their recognition algorithms differ ...
Lorenzo Balzotti
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A family of mixed graphs with large order and diameter 2 [PDF]
A mixed regular graph is a connected simple graph in which each vertex has both a fixed outdegree (the same indegree) and a fixed undirected degree.
Araujo Pardo, Gabriela +3 more
core +2 more sources
Spektrum Laplace pada graf kincir angin berarah (Q_k^3)
Suppose that 0 = µ0 ≤ µ1 ≤ ... ≤ µn-1 are eigen values of a Laplacian matrix graph with n vertices and m(µ0), m(µ1), …, m(µn-1) are the multiplicity of each µ, so the Laplacian spectrum of a graph can be expressed as a matrix 2 × n whose line elements ...
Melly Amaliyanah +2 more
doaj +1 more source
Hamiltonicity in Directed Toeplitz Graphs with s1=1 and s3=4
A directed Toeplitz graph Tns1,⋯,sk;t1,⋯,tl with vertices 1, 2, ⋯, n is a directed graph whose adjacency matrix is a Toeplitz matrix. In this paper, we investigate the Hamiltonicity in directed Toeplitz graphs Tns1,⋯,sk;t1,⋯,tl with s1=1 and s3=4.
Shabnam Malik
doaj +1 more source

