Results 21 to 30 of about 26,406 (246)
Hermitian Laplacian Matrix of Directed Graphs [PDF]
Laplacian matrix plays an important role in the research of undirected graphs.From its spectrum,some structure and properties of a graph can be deduced.Based on this,several efficient algorithms have been designed for relevant tasks in graphs,such as ...
LIU Kaiwen, HUANG Zengfeng
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Laplacian Pattern Formation [PDF]
The formation of snowflakes, viscous fingers and electrodeposits is governed by analogous equations : these structures are all Laplacian patterns. In this paper we review model experiments and computer simulations which are widely used to study diverse morphologies resulting from the motion of unstable interfaces.
Vicsek, Tamás, Kertész, János
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An eigenvalue optimization problem for Dirichlet-Laplacian with a drift [PDF]
In this paper, we prove a monotonicity result related to the principal eigenvalue for Dirichlet-Laplacian with a drift operator in a punctured ball.
محسن زیوری رضاپور
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Fractional Laplacian pyramids [PDF]
We provide an extension of the L 2 -spline pyramid (Unser et al., 1993) using polyharmonic splines. We analytically prove that the corresponding error pyramid behaves exactly as a multi-scale Laplace operator. We use the multiresolution properties of polyharmonic splines to derive an efficient, non-separable filterbank implementation.
Delgado-Gonzalo, Ricard +2 more
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A class of digraphs which have completely real Laplacian spectra(一类具有全实Laplacian谱的有向图)
分别研究了一类带有Hamiltonian路和带有Hamiltonian圈的有向图的基本有圈性(essential cyclicity),给出了这种有向图的Laplacian谱,表明这些图具有全实的Laplacian谱.
SULi(苏莉), LIHong-hai(李红海)
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PERSISTENT DIRECTED FLAG LAPLACIAN. [PDF]
Topological data analysis (TDA) has had enormous success in science and engineering in the past decade. Persistent topological Laplacians (PTLs) overcome some limitations of persistent homology, a key technique in TDA, and provide substantial insight to the behavior of various geometric and topological objects.
Jones B, Wei GW.
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Discrete Magnetic Laplacian [PDF]
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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While progress has been made in design optimization of concentric ring electrodes maximizing the accuracy of the surface Laplacian estimation, it was based exclusively on the negligible dimensions model of the electrode.
Oleksandr Makeyev +5 more
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14 pages; this version is considerably ...
MUSINA, Roberta, Nazarov A. I.
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On the Laplacian, signless Laplacian and normalized Laplacian characteristic polynomials of a graph [PDF]
The authors prove a number of formulas on the characteristic polynomials of the Laplacian, signless Laplacian and normalized Laplacian matrices of graphs. The use of these formulas is exemplified in constructions of graphs cospectral with respect to the appropriate matrix.
Guo, Ji-Ming, Li, Jianxi, Shiu, Wai Chee
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