نتایج جستجو برای: kronecker curvature

تعداد نتایج: 43881  

Journal: :European Journal of Combinatorics 2008

Journal: :journal of mathematical modeling 2014
huamin zhang hongcai yin rui ding

in this paper, we present a numerical algorithm for solving matrix equations $(a otimes b)x = f$  by extending the well-known gaussian elimination for $ax = b$. the proposed algorithm has a high computational efficiency. two numerical examples are provided to show the effectiveness of the proposed algorithm.

Journal: :SIAM Journal on Matrix Analysis and Applications 2007

Journal: :Linear Algebra and its Applications 1976

Journal: :Annales de l’institut Fourier 1973

2009
Sadegh Jokar Volker Mehrmann

Three properties of matrices: the spark, the mutual incoherence and the restricted isometry property have recently been introduced in the context of compressed sensing. We study these properties for matrices that are Kronecker products and show how these properties relate to those of the factors. For the mutual incoherence we also discuss results for sums of Kronecker products.

Journal: :Journal of Machine Learning Research 2010
Jure Leskovec Deepayan Chakrabarti Jon M. Kleinberg Christos Faloutsos Zoubin Ghahramani

How can we generate realistic networks? In addition, how can we do so with a mathematically tractable model that allows for rigorous analysis of network properties? Real networks exhibit a long list of surprising properties: Heavy tails for the inand out-degree distribution, heavy tails for the eigenvalues and eigenvectors, small diameters, and densification and shrinking diameters over time. C...

2008
Jure Leskovec Deepayan Chakrabarti Christos Faloutsos

How can we generate realistic networks? In addition, how can we do so with a mathematically tractable model that allows for rigorous analysis of network properties? Real networks exhibit a long list of surprising properties: Heavy tails for the inand out-degree distribution; heavy tails for the eigenvalues and eigenvectors; small diameters; and densification and shrinking diameters over time. T...

Journal: :transactions on combinatorics 2015
xueliang li huishu lian

given a graph $g$, let $g^sigma$ be an oriented graph of $g$ with the orientation $sigma$ and skew-adjacency matrix $s(g^sigma)$. then the spectrum of $s(g^sigma)$ consisting of all the eigenvalues of $s(g^sigma)$ is called the skew-spectrum of $g^sigma$, denoted by $sp(g^sigma)$. the skew energy of the oriented graph $g^sigma$, denoted by $mathcal{e}_s(g^sigma)$, is defined as the sum of the n...

2001
Leonid Malyshkin

We find that in the kinematic limit the ensemble averaged square of the curvature of magnetic field lines is exponentially amplified in time by the turbulent motions in a highly conductive plasma. At the same time, the ensemble averaged curvature vector exponentially decays to zero. Thus, independently of the initial conditions, the fluctuation field becomes very curved, and the curvature vecto...

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