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Tight Approximation Ratio of a General Greedy Splitting Algorithm for the Minimum k-Way CutProblem
k-way cut Approximation algorithm
2012/12/3
For an edge-weighted connected undirected graph, the minimum k-way cut problem is to find a subset of edges of minimum total weight whose removal separates the graph into k connected components. The p...
Two-dimensional Finite Larmor Radius approximation in canonical gyrokinetic coordinates
Two-dimensional Larmor Radius approximation canonical gyrokinetic coordinates
2010/11/9
In this paper, we present some new results about the approximation of the Vlasov-Poisson system with a strong external magnetic field by the 2D finite Larmor radius model. The proofs within the prese...
A New Approximation to the Normal Distribution Quantile Function
Normal Distribution Quantile Function primary benefit
2010/4/27
We present a new approximation to the normal distribution quantile function. It has a similar form to the approximation of Beasley and Springer [3], providing a maximum absolute error of less than $2....
Approximation of Continuous Funtions Using Fejer Sums of Jacobi-Fourier Series
Jacobi-Fourier series Fejer sums continuous funtions approximation
2012/10/11
The pointwise estimates of approximation of continuous function() f xby Fejer sums ,(,)nf xαβσ of its Jacobi-Fourier series have been investigated, which improved the results of Li Z K for points.1 x ...
Rational quadratic approximation to real algebraic curves
Real algebraic curve Parametrization Approximation Topology determination
2013/9/9
An algorithm is proposed to give a global approximation of an implicit real plane algebraic curve with rational quadratic B-spline curves. The algorithm consists of four steps: topology determination,...