Results 41 to 50 of about 232,087 (312)

Sum-edge characteristic polynomials of graphs

open access: yesJournal of Taibah University for Science, 2019
Modelling a chemical compound by a (molecular) graph helps us to obtain some required information about the chemical and physical properties of the corresponding molecular structure.
Mert Sinan Oz   +2 more
doaj   +1 more source

Automatic Registration Of SAR And Optical Image Based On Line And Graph Spectral Theory [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
In this paper, a novel registration method is proposed by integrating the graph spectral theory and line features. The principal steps of our algorithm are as follows.
J. Zhao, S. Gao, H. Sui, Y. Li, L. Li
doaj   +1 more source

Spatio–Spectral Limiting on Replacements of Tori by Cubes

open access: yesMathematics, 2023
A class of graphs is defined in which each vertex of a discrete torus is replaced by a Boolean hypercube in such a way that vertices in a fixed subset of each replacement cube are adjacent to corresponding vertices of a neighboring replacement cube ...
Jeffrey A. Hogan, Joseph D. Lakey
doaj   +1 more source

First Hyper Zagreb Spectral Radii of Splitting and Shadow Graphs

open access: yesScientific Annals of Computer Science
The spectral radius RS of graph G is a spectral invariant derived from the eigenvalues of the associated matrix for a graph G. It is widely used in fields such as computer science, chemistry, biology, and network analysis.
Ahmad Bilal, Muhammad Mobeen Munir
doaj   +1 more source

Tensor Spectral Clustering for Partitioning Higher-order Network Structures

open access: yes, 2015
Spectral graph theory-based methods represent an important class of tools for studying the structure of networks. Spectral methods are based on a first-order Markov chain derived from a random walk on the graph and thus they cannot take advantage of ...
Benson, Austin R.   +2 more
core   +1 more source

CDK11 inhibition induces cytoplasmic p21WAF1 splice variant by p53 stabilisation and SF3B1 inactivation

open access: yesMolecular Oncology, EarlyView.
CDK11 inhibition stabilises the tumour suppressor p53 and triggers the production of an alternative p21WAF1 splice variant p21L, through the inactivation of the spliceosomal protein SF3B1. Unlike the canonical p21WAF1 protein, p21L is localised in the cytoplasm and has reduced cell cycle‐blocking activity.
Radovan Krejcir   +12 more
wiley   +1 more source

Harmonic analysis of finite lamplighter random walks

open access: yes, 2007
Recently, several papers have been devoted to the analysis of lamplighter random walks, in particular when the underlying graph is the infinite path $\mathbb{Z}$. In the present paper, we develop a spectral analysis for lamplighter random walks on finite
Scarabotti, Fabio, Tolli, Filippo
core   +1 more source

RIPK4 function interferes with melanoma cell adhesion and metastasis

open access: yesMolecular Oncology, EarlyView.
RIPK4 promotes melanoma growth and spread. RIPK4 levels increase as skin lesions progress to melanoma. CRISPR/Cas9‐mediated deletion of RIPK4 causes melanoma cells to form less compact spheroids, reduces their migratory and invasive abilities and limits tumour growth and dissemination in mouse models.
Norbert Wronski   +9 more
wiley   +1 more source

A New Family of Graphs and Strong Antireciprocal Eigenvalue Property

open access: yesJournal of Mathematics
Spectral graph theory explores the relationship between the eigenvalues and the structural properties of graphs. This study focuses on the fundamental matrices associated with simple graphs, specifically the adjacency matrix. This work contributes to the
Sadia Akhter   +3 more
doaj   +1 more source

A short-graph Fourier transform via personalized PageRank vectors

open access: yes, 2016
The short-time Fourier transform (STFT) is widely used to analyze the spectra of temporal signals that vary through time. Signals defined over graphs, due to their intrinsic complexity, exhibit large variations in their patterns.
Sapiro, Guillermo, Tepper, Mariano
core   +1 more source

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