Results 71 to 80 of about 1,442 (223)
On bicyclic graphs whose second largest eigenvalue does not exceed 1
Connected graphs in which the number of edges equals the number of vertices plus one are called bicyclic graphs.
Guo, Shu-Guang
core +1 more source
Abstract We introduce mixed super‐circles, a position‐curvature formulation of the original dynamic 2D super‐helix model. Compared to the latter, purely curvature‐based model – the so‐called chained formulation –, the mixed formulation that we propose here drastically reduces the algorithmic complexity of the solving scheme – from quadratic to quasi ...
Emile Hohnadel +2 more
wiley +1 more source
Maximizing spectral radius of unoriented Laplacian matrix over bicyclic graphs of a given order
For every integer n≥4, it is proved that there is a unique graph of order n which maximizes the spectral radius of the unoriented Laplacian matrix over all bicyclic graphs of order n, namely, the graph obtained from the cycle C 4 by first adding a chord ...
Fan, Yi-zheng; 譚必信; Tam, Bit-shun; Zhou, Jun
core +1 more source
A simple approach to order the multiplicative Zagreb indices of connected graphs [PDF]
The first ($Pi_1$) and the second $(Pi_2$) multiplicative Zagreb indices of a connected graph $G$, with vertex set $V(G)$ and edge set $E(G)$, are defined as $Pi_1(G) = prod_{u in V(G)} {d_u}^2$ and $Pi_2(G) = prod_{uv in E(G)} {d_u}d_{v}$, respectively,
Mehdi Eliasi
doaj
UrbanClipAtlas: A Visual Analytics Framework for Event and Scene Retrieval in Urban Videos
Abstract Extracting actionable insights from long‐duration urban videos is often labor‐intensive: analysts must manually sift through raw footage to pinpoint target events or uncover broader behavioral trends. In this work, we present UrbanClipAtlas, a visual analytics system for exploring long urban videos recorded at street intersections ...
Joel Perca +5 more
wiley +1 more source
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
wiley +1 more source
On ordering bicyclic graphs with respect to the Laplacian spectral radius
A connected graph of order n is bicyclic if it has n+1 edges. He et al. [C.X. He, J.Y. Shao, J.L. He, On the Laplacian spectral radii of bicyclic graphs, Discrete Math.
Dejan V. Tošić +7 more
core +1 more source
On extremal bipartite bicyclic graphs
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Huang, Jing, Li, Shuchao, Zhao, Qin
openaire +1 more source
A Conversation With David Bellhouse
Summary David Richard Bellhouse was born in Winnipeg, Manitoba, on 19 July 1948. He studied actuarial mathematics and statistics at the University of Manitoba (BA, 1970; MA, 1972) and completed his PhD at the University of Waterloo, Ontario, in 1975. After being an Assistant Professor for 1 year at his alma mater, he joined the University of Western ...
Christian Genest
wiley +1 more source
On the spectral radius of bicyclic graphs with n vertices and diameter d
Bicyclic graphs are connected graphs in which the number of edges equals the number of vertices plus one. In this paper we determine the graph with the largest spectral radius among all bicyclic graphs with n vertices and diameter d.
Guo, Shu-Guang
core +1 more source

