Results 71 to 80 of about 1,782 (193)
Computing the determinant of a signed graph
Open MathematicsA signed graph is a simple graph in which every edge has a positive or negative sign. In this article, we employ several algebraic techniques to compute the determinant of a signed graph in terms of the spectrum of a vertex-deleted subgraph.
Alshamary Bader, Stanić Zoran
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LOCAL IRREGULARITY VERTEX COLORING OF BICYCLIC GRAPH FAMILIES
BarekengThe graph in this research is a simple and connected graph with as vertex set and as an edge set. We used deductive axiomatic and pattern recognition method.
Arika Indah Kristiana +5 more
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Developmental Medicine &Child Neurology, EarlyView.Safety strategies used by adults with complex forms of cerebral palsy when participating in community‐based physical activity were explored in this study. Physical assistance was the main safety strategy in use, provided for four key purposes. The attributes of support people in community settings was key to experiences of safety.
Georgia B McKenzie +6 more
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Unicyclic graphs with bicyclic inverses [PDF]
Czechoslovak Mathematical Journal, 2017 A graph is nonsingular if its adjacency matrix A(G) is nonsingular. The inverse of a nonsingular graph G is a graph whose adjacency matrix is similar to A(G)−1 via a particular type of similarity. Let H denote the class of connected bipartite graphs with unique perfect matchings.
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General Form of the Automorphism Group of Bicyclic Graphs
, 2021 20 ...
Madani, Somayeh, Ashrafi, Ali Reza
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A matheuristic for the traveling salesman problem with positional consistency constraints
International Transactions in Operational Research, EarlyView.Abstract We propose a matheuristic for the traveling salesman problem with positional consistency constraints, where we seek to generate a set of routes with minimum total cost, in which the nodes visited in more than one route (consistent nodes) must occupy the same relative position in all routes.
Luís Gouveia, Ana Paias, Mafalda Ponte
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Embedding mental files in the world
Mind &Language, EarlyView.Cognitive scientific explanations can take either a mechanistic or design perspective. Some recent philosophical works propose to apply the mechanistic perspective to the influential mental file framework. The design perspective, however, remains underexplored.
Zhengxi Jin
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Experimental Physiology, EarlyView.Abstract Prolonged exposure to weightlessness leads to loss of muscle and bone mass. Therefore, astronauts on board the International Space Station (ISS) currently perform mandatory daily exercises. ISS missions usually last 6 months, and future missions will become significantly longer when going, for example, to Mars.
Jonas Böcker +6 more
wiley +1 more source
On the Extremal Weighted Mostar Index of Bicyclic Graphs
AxiomsLet G be a simple connected graph with edge set E(G) and vertex set V(G). The weighted Mostar index of a graph G is defined as w+Mo(G)=∑e=uv∈E(G)(dG(u)+dG(v))|nu(e)−nv(e)|, where nu(e) denotes the number of vertices closer to u than to v for an edge uv ...
Yuwei He, Mengmeng Liu
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Experimental Physiology, EarlyView.Abstract The clinical assessment of cardiovascular function during exercise using stress echocardiography is essential for accurate cardiac diagnosis. However, normal limitations of cardiac deformation responses to increasing physical exertion remain poorly understood.
Fabian Spahiu +4 more
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