兰州大学机构库 >数学与统计学院

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Identifying a diffusion coefficient in a time-fractional diffusion equation 期刊论文
MATHEMATICS AND COMPUTERS IN SIMULATION, 2018, 卷号: 151, 期号: 6, 页码: 77-95
Authors:  Wei, T;  Li, YS;  Wei, T (reprint author), Lanzhou Univ, Sch Math & Stat, Lanzhou 730000, Gansu, Peoples R China.
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Inverse diffusion coefficient problem  Fractional diffusion equation  Conjugate gradient algorithm  
Optimizing and improving of the C-to-R method for solving complex symmetric linear systems 期刊论文
APPLIED MATHEMATICS LETTERS, 2018, 卷号: 82, 页码: 79-84
Authors:  Liao, LD;  Zhang, GF;  Li, RX;  Zhang, GF (reprint author), Lanzhou Univ, Sch Math & Stat, Lanzhou 730000, Gansu, Peoples R China.
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Preconditioner  Optimal parameter  C-to-R method  Complex symmetric linear system  Spectral radius  
Fast propagation for reaction-diffusion cooperative systems 期刊论文
JOURNAL OF DIFFERENTIAL EQUATIONS, 2018, 卷号: 265, 页码: 645-670
Authors:  Xu, WB;  Li, WT;  Ruan, SG;  Li, WT (reprint author), Lanzhou Univ, Sch Math & Stat, Lanzhou 730000, Gansu, Peoples R China.
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Spatial propagation  Reaction-diffusion cooperative systems  Accelerating fronts  
Parameterized approximate block LU preconditioners for generalized saddle point problems 期刊论文
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, 2018, 卷号: 336, 页码: 281-296
Authors:  Liang, ZZ;  Zhang, GF;  Zhang, GF (reprint author), Lanzhou Univ, Sch Math & Stat, Lanzhou 730000, Gansu, Peoples R China.
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Block LU factorization  Preconditioning  Generalized saddle point problem  Convergence  Spectral analysis  
Representations of polynomial Rota-Baxter algebras 期刊论文
JOURNAL OF PURE AND APPLIED ALGEBRA, 2018, 卷号: 222, 期号: 1, 页码: 1738-1757
Authors:  Qiao, L;  Pei, J;  Pei, J (reprint author), Southwest Univ, Sch Math & Stat, Chongqing 400715, Peoples R China.
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Variational formulation and efficient implementation for solving the tempered fractional problems 期刊论文
NUMERICAL METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS, 2018, 卷号: 34, 期号: 4, 页码: 1224-1257
Authors:  Deng, WH;  Zhang, ZJ;  Zhang, ZJ (reprint author), Lanzhou Univ, Sch Math & Stat, Gansu Key Lab Appl Math & Complex Syst, Lanzhou 730000, Gansu, Peoples R China.
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implementation  tempered Levy flight  tempered trap  variational formulation  
Chromatic index determined by fractional chromatic index 期刊论文
JOURNAL OF COMBINATORIAL THEORY SERIES B, 2018, 卷号: 131, 期号: 2, 页码: 85-108
Authors:  Chen, GT;  Gao, YP;  Kim, R;  Postle, L;  Shan, SL;  Chen, GT (reprint author), Georgia State Univ, Dept Math & Stat, Atlanta, GA 30303 USA.
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Edge chromatic index  Fractional chromatic index  Critical graph  Tashkinov tree  Extended Tashkinov tree  
基于RSSI的无线传感器网络节点定位算法研究 学位论文
博士, 兰州: 兰州大学, 2018
Authors:  杜谨泽
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无线传感器网络  接收信号强度指示  室内定位  线性最小二乘法  非线性最小二乘法  凸集投影法  半正定规划法  
中证500与上证50股指期货定价模型对比研究 学位论文
硕士, 兰州: 兰州大学, 2018
Authors:  甘倩倩
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股指期货  定价模型  参数拟合  逻辑回归  对比研究  
A_2 型的线性模与丛代数 学位论文
硕士, 兰州: 兰州大学, 2018
Authors:  郭静敏
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丛代数  量子仿射代数  L 系统  A_2 型线性模