共查询到20条相似文献,搜索用时 15 毫秒
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《中国科学:数学》2013,(1):105-109
Nonabelian Jacobian of smooth projective surfaces-a survey REIDER Igor Abstract The nonabelian Jacobian J(X;L,d)of a smooth projective surface X is inspired by the classical theory of Jacobian of curves.It is built as a natural scheme interpolating between the Hilbert scheme X[d]of subschemes of 相似文献
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《中国科学:数学》2012,(3):I0001-I0005
Martin boundary and exit space on the Sierpinski gasket;On higher-dimensional contrast structure of singularly perturbed Dirichlet problem;On the limit behavior of the magnetic Zakharov system;On representations of real Jacobi groups;The mean value involving Dedekind sums and two-term exponential sums 相似文献
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《中国科学:数学》2013,(5):526-530
A posteriori error estimator for eigenvalue problems by mixed finite element method JIA ShangHui,CHEN HongTao & XIE HeHu Abstract In this paper,a residual type of a posteriori error estimator for the general second order elliptic eigenpair approximation by the mixed finite element method is derived and analyzed,based on a type of superconvergence result of the eigenfunction approximation.Its efficiency and reliability are proved by both theoretical analysis and numerical experiments. 相似文献
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《中国科学:数学》2014,(7):J0001-J0006
<正>Efficient implementation of the Barnes-Hut octree algorithm for Monte Carlo simulations of charged systems GAN ZeChengXU ZhenLi Abstract Computer simulation with Monte Carlo is an important tool to investigate the function and equilibrium properties of many biological and soft matter materials solvable in solvents.The appropriate treatment of longrange electrostatic interaction is essential for these charged systems, 相似文献
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《中国科学:数学》2014,(8):I0001-I0006
<正>Ramanujan-type congruences for broken 2-diamond partitions modulo 3CHEN William Y.C.,FAN Anna R.B.YU Rebecca T.Abstract The notion of broken k-diamond partitions was introduced by Andrews and Paule.Let△_k(n)denote the number of broken k-diamond partitions of n,Andrews and Paule also posed three conjectures on the congruences of△_2(n)modulo 2,5 and 25.Hirschhorn and 相似文献
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《中国科学:数学》2012,(7):I0001-I0005
Weak crossed biproducts and weak projections FERNP, NDEZ VILABOA Jose Manuel, GONZALEZ RODRiGUEZ Ramon & RODRiGUEZ RAPOSO Ana Belen Abstract In this paper, we present the general theory and universal properties of weak crossed biproducts. We prove that every weak projection of weak bialgebras induces one of these weak crossed structures. Finally, we compute explicitly the weak crossed biproduct associated with a groupoid that admits an exact factorization. 相似文献
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《中国科学:数学》2012,(9):I0001-I0005
Chebfun and numerical quadrature HALE Nicholas & TREFETHEN Lloyd N Abstract Chebfun is a Matlab-based software system that overloads Matlab's discrete operations for vectors and matrices to analogous continuous operations for functions and operators. We begin by describing Chebfun's fast capabilities for Clenshaw-Curtis and also Gauss-Legendre, -Jacobi, -Hermite, and -Laguerre quadrature, based on algorithms of Waldvogel and Glaser, Liu and Rokhlin. Then we consider how such methods can be applied to quadrature problems including 2D integrals over rectangles, fractional derivatives and integrals, functions defined on unbounded intervals, and the fast computation of weights for barycentric interpolation. 相似文献
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