Results 191 to 200 of about 302,460 (378)

On 𝐿_{𝑝}-spectra of the laplacian on a Lie group with polynomial growth [PDF]

, 1974
Andrzej Hulanicki
openalex   +1 more source

A Nordhaus–Gaddum Problem for the Spectral Gap of a Graph

Journal of Graph Theory, EarlyView.
ABSTRACT Let G $G$ be a graph on n $n$ vertices, with complement G¯ $\bar{G}$. The spectral gap of the transition probability matrix of a random walk on G $G$ is used to estimate how fast the random walk becomes stationary. We prove that the larger spectral gap of G $G$ and G¯ $\bar{G}$ is Ω(1∕n) ${\rm{\Omega }}(1\unicode{x02215}n)$.
Sooyeong Kim, Neal Madras
wiley   +1 more source

Multiview subspace clustering via low‐rank correlation analysis

IET Computer Vision, EarlyView., 2022
The framework of our proposed method. The unifying graph S is adaptively used to capture the low–rank correlation between samples in different views. S also represents the clustering structure with a rank constraint to avoid its spectral post–processing.
Qu Kun, Stanley Ebhohimhen Abhadiomhen, Zhifeng Liu   +2 more
wiley   +1 more source

On Path Laplacian Eigenvalues and Path Laplacian Energy of Graphs

Journal of New Theory, 2018
We introduce the concept of Path Laplacian Matrix for a graph and explore the eigenvalues of this matrix. The eigenvalues of this matrix are called the path Laplacian eigenvalues of the graph.
Shridhar Chandrakant Patekar, Maruti Mukinda Shikare   +1 more
doaj  

The spectrum of the Laplacian on a manifold of negative curvature. I [PDF]

, 1978
Mark A. Pinsky
openalex   +1 more source

The Laplacian and the Kohn Laplacian for the sphere [PDF]

Journal of Differential Geometry, 1980
openaire   +2 more sources

A two‐stage model for precise identification and Gleason grading of clinically significant prostate cancer: a hybrid approach

Journal of Medical Radiation Sciences, Volume 72, Issue 1, Page 93-105, March 2025.
This study developed a two‐stage model using radiomics‐based multiparametric MRI and clinical indicators to help identify and grade clinically significant prostate cancer. The model showed promising levels of diagnostic accuracy and predictive performance.
Yuyan Zou, Xuechun Wang, Fen Ma, Xulun Liu, Chunyue Jiao, Zhen Kang, Jingjing Cui, Yang Zhang, Yan Xie, Lei Chen, Ronghua Tian   +10 more
wiley   +1 more source

Remarks on uniqueness results of the first eigenvalue of the p-Laplacian [PDF]

, 1988
Guy Barles
openalex   +1 more source

Discrete Chiral Ballistic Polariton Laser

Laser &Photonics Reviews, EarlyView.
Planar microcavities in the strong light–matter coupling regime exhibit exciton‐polariton modes with a strong chiral response toward circularly polarized light. This feature is exploited alongside inherent spin‐orbit coupling of cavity light to generate giant discrete optical vortices in polygonal arrays of exciton‐polariton condensates.
Zuzanna Werner, Andrzej Frączak, Valtýr Kári Daníelsson, Jacek Szczytko, Barbara Piętka, Helgi Sigurðsson   +5 more
wiley   +1 more source

Resolution Enhancement by Prediction of the High-Frequency Image Based on the Laplacian Pyramid

EURASIP Journal on Advances in Signal Processing, 2006
According to recent advances in digital image processing techniques, interest in high-quality images has been increased. This paper presents a resolution enhancement (RE) algorithm based on the pyramid structure, in which Laplacian histogram matching is
Yang Seungjoon, Jeon Bo-Won, Park Rae-Hong   +2 more
doaj   +1 more source