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The Laplacian Spread of a Tree [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
The Laplacian spread of a graph is defined to be the difference between the largest eigenvalue and the second smallest eigenvalue of the Laplacian matrix of the graph.
Yi-Zheng Fan   +3 more
doaj   +4 more sources

Solving Westergaard Half-Space Problems Using Potential Theory [PDF]

open access: yesEngineering and Technology Journal, 2023
The Westergaard half-space problem has been solved using the potential theory in this work. It is a classical theme in elasticity theory that seeks to find the displacements and stresses in the half-space caused by known boundary loads.
Charles Ike
doaj   +1 more source

Drafting and Revision: Laplacian Pyramid Network for Fast High-Quality Artistic Style Transfer [PDF]

open access: yesComputer Vision and Pattern Recognition, 2021
Artistic style transfer aims at migrating the style from an example image to a content image. Currently, optimization-based methods have achieved great stylization quality, but expensive time cost restricts their practical applications.
Tianwei Lin   +8 more
semanticscholar   +1 more source

COMPARISON OF EDGE DETECTION METHODS USING ROBERTS AND LAPLACIAN OPERATORS ON MANGO LEAF OBJECTS

open access: yesBarekeng, 2023
Edge detection is a technique to find the outlines of an object in an image by detecting significant changes in brightness or discontinuities. This study discusses the comparison of edge detection using Roberts operators and Laplacian operators.
Dedi Darwis   +4 more
doaj   +1 more source

Ricci curvature of semi-slant warped product submanifolds in generalized complex space forms

open access: yesAIMS Mathematics, 2022
The objective of this paper is to achieve the inequality for Ricci curvature of a semi-slant warped product submanifold isometrically immersed in a generalized complex space form admitting a nearly Kaehler structure in the expressions of the squared norm
Ali H. Alkhaldi   +3 more
doaj   +1 more source

Estimation of eigenvalues for the α-Laplace operator on pseudo-slant submanifolds of generalized Sasakian space forms

open access: yesAIMS Mathematics, 2022
In this study, we seek to establish new upper bounds for the mean curvature and constant sectional curvature of the first positive eigenvalue of the α-Laplacian operator on Riemannian manifolds.
Meraj Ali Khan   +2 more
doaj   +1 more source

Deep Laplacian Pyramid Networks for Fast and Accurate Super-Resolution [PDF]

open access: yesComputer Vision and Pattern Recognition, 2017
Convolutional neural networks have recently demonstrated high-quality reconstruction for single-image super-resolution. In this paper, we propose the Laplacian Pyramid Super-Resolution Network (LapSRN) to progressively reconstruct the sub-band residuals ...
Wei-Sheng Lai   +3 more
semanticscholar   +1 more source

Eigenfunctions in Finsler Gaussian solitons

open access: yesOpen Mathematics, 2023
Gaussian solitons are important examples in the theory of Riemannian measure space. In the first part, we explicitly characterize the first eigenfunctions of the drift Laplacian in a Gaussian shrinking soliton, which shows that apart from each coordinate
Liu Caiyun, Yin Songting
doaj   +1 more source

Laplacians on spheres [PDF]

open access: yesSão Paulo Journal of Mathematical Sciences, 2018
Spheres can be written as homogeneous spaces $G/H$ for compact Lie groups in a small number of ways. In each case, the decomposition of $L^2(G/H)$ into irreducible representations of $G$ contains interesting information. We recall these decompositions, and see what they can reveal about the analogous problem for noncompact real forms of $G$ and $H$.
Schlichtkrull, Henrik   +2 more
openaire   +4 more sources

Ricci curvature of contact CR-warped product submanifolds in generalized Sasakian space forms admitting nearly Sasakian structure

open access: yesAIMS Mathematics, 2021
The objective of this paper is to achieve the inequality for Ricci curvature of a contact CR-warped product submanifold isometrically immersed in a generalized Sasakian space form admitting a nearly Sasakian structure in the expressions of the squared ...
Ibrahim Al-Dayel, Meraj Ali Khan
doaj   +1 more source

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