論文リスト(テーマ別)

(論文リスト )


線形方程式の数値解法(クリロフ部分空間法)
X.-M. Gu, T.-Z. Huang, L. Li, H.-B. Li, T Sogabe, and M. Clemens,
“Quasi-minimal residual variants of the COCG and COCR methods for complex symmetric linear systems in electromagnetic simulations”
IEEE Trans. Microw. Theory Techn. (accepted )
今倉暁,楊済栄,曽我部知広,張紹良,
“デフレーション型とLook-Back 型のリスタート を併用したGMRES(m) 法の収束特性”,
日本応用数理学会論文誌,Vol.22,No.3,2012,pp.117-141.
今倉暁,曽我部知広,張紹良,
“非対称線形方程式のためのLook-Back GMRES(m) 法”
日本応用数理学会論文誌,Vol.22,No.1,2012,pp. 1-21.
A. Imakura, T. Sogabe, S.-L. Zhang,
“An efficient variant of the GMRES(m) method based on error equations”
East Asia J. on Appl. Math.., 2 (2012), pp. 19-32.
L. Du, T. Sogabe, and S.-L. Zhang,
“A variant of the IDR(s) method with quasi-minimal residual strategy”,
J. Comput. Appl. Math., 236 (2011), pp. 621-630.
L. Du, T. Sogabe and S.-L. Zhang
“Quasi-minimal residual smoothing technique for the IDR(s) method”,
JSIAM Letters, 3 (2011), pp. 13-16.
今倉暁,曽我部知広,張紹良,            
“GMRES(m)法のリスタートについて”,
日本応用数理学会論文誌,Vol.19,No.4,2009,pp.551-564.
Y.-F. Jing, T.-Z. Huang, Y. Zhang, L. Li, G.-H. Cheng, Z.-G. Ren, Y. Duan, T. Sogabe, and B. Carpentieri,        
“Lanczos-type variants of the COCR method for complex nonsymmetric linear systems”,
J. Comput. Phys., 228 (2009), pp. 6376-6394.
T. Sogabe, M. Sugihara, and S.-L. Zhang,                 
“An extension of the conjugate residual method to nonsymmetric linear systems”,
J. Comput. Appl. Math., 226 (2009), pp. 103-113.
南さつき,曽我部知広,杉原正顯,張紹良,
“Bi-CR法への準最小残差アプローチの適用について”,
日本応用数理学会論文誌,Vol.17,No.3,2007,pp.301-317.
阿部邦美,曽我部知広,藤野清次,張紹良,  
“非対称行列用共役残差法に基づく積型反復解法”,
情報処理学会論文誌「コンピューティングシステム」,Vol.48,No.SIG 8 (ACS18),2007,pp.11-21.
T. Sogabe and S.-L. Zhang,
“A COCR method for solving complex symmetric linear systems”,
J. Comput. Appl. Math., 199 (2007), pp. 297-303.
T. Sogabe and S.-L. Zhang, (Invited Paper)
“An iterative method based on an A-biorthogonalization process for nonsymmetric linear systems”,
in: Proceedings of The 7th China-Japan Seminar on Numerical Mathematics, ed. Z.-C. Shi and H. Okamoto,
Science Press, Beijing, 2006, pp. 120-130.
曽我部知広, 杉原正顯, 張紹良,
“共役残差法の非対称行列用への拡張”,
日本応用数理学会論文誌,Vol.15, No.3,2005,pp.445-459.
T. Sogabe and S.-L. Zhang, (Invited Lecture)
“Extended conjugate residual methods for solving nonsymmetric linear systems”,
in: Numerical Linear Algebra and Optimization, ed. Y. Yuan, Science Press, Beijing/NewYork, 2004, pp. 88-99.
曽我部知広,金成海,阿部邦美,張紹良,
“CGS法の改良について”,
日本応用数理学会論文誌,Vol.14,No.1,2004,pp.1-12.



シフト線形方程式の数値解法と計算物理学への応用 
L. Du, T. Sogabe, and S.-L. Zhang,
IDR(s) for solving shifted nonsymmetric linear systems,
J. Comput. Appl. Math., 274 (2015), pp. 35-43.
X.-M. Gu, T.-Z. Huang, J. Meng, T. Sogabe, H.-B. Li, and L. Li,
BiCR-type methods for families of shifted linear systems,
Comput. Math. Appl., 68 (2014), pp. 746-758.
A. Imakura, T. Sogabe, and S.-L. Zhang,
“An efficient variant of the restarted shifted GMRES for solving shifted linear systems”,
J. Math. Res. Appl., 33 (2013), pp. 127-141.
T. Sogabe, T. Hoshi, S.-L. Zhang, and T. Fujiwara,            
“Solution of generalized shifted linear systems with complex symmetric matrices”,
J. Comput. Phys., 231(2012), pp. 5669-5684.
H. Teng, T. Fujiwara, T. Hoshi, T. Sogabe, S.-L. Zhang, and S. Yamamoto,
“Efficient and accurate linear algebraic methods for large-scale electronic structure calculations with non-orthogonal atomic orbitals”,
Phys. Rev. B 83, 165103 (2011), pp. 1-12.
T. Sogabe and S.-L. Zhang,              
“An extension of the COCR method to solving shifted linear systems with complex symmetric matrices”,
East Asia J. on Appl. Math., 1 (2011), pp. 97-107.
T. Fujiwara, T. Hoshi, S. Yamamoto, T. Sogabe, and S.-L. Zhang,       
“A novel algorithm of large-scale simultaneous linear equations”,
J. Phys.: Condens. Matter, 22 (2010), 074206, pp.1-6.
曽我部知広, 張紹良,    
大規模シフト線形方程式の数値解法−クリロフ部分空間の性質に着目して−,
応用数理,Vol.19,No.3,2009,pp.27-42. 
S. Yamamoto, T. Sogabe, T. Hoshi, S.-L. Zhang, and T. Fujiwara,  
“Shifted COCG method and its application to double orbital extended Hubbard model”,
J. Phys. Soc. Jpn., Vol. 77, No. 11, 114713 (2008), pp. 1-8.      
T. Sogabe, T. Hoshi, S.-L. Zhang, and T. Fujiwara,       
“On a weighted quasi-residual minimization strategy for solving complex symmetric shifted linear systems”,            
Electron. Trans. Numer. Anal., 31 (2008), pp. 126-140.
T. Sogabe, T. Hoshi, S.-L. Zhang, and T. Fujiwara, (Invited Paper)
“A numerical method for calculating the Green's function arising from electronic structure theory”,
in: Frontiers of Computational Science, eds. Y. Kaneda, H. Kawamura and M. Sasai,
Springer-Verlag, Berlin/Heidelberg, 2007, pp. 189-195.
R. Takayama, T. Hoshi, T. Sogabe, S.-L. Zhang, and T. Fujiwara,  
“Linear algebraic calculation of Green's function for large-scale electronic structure theory ”,
Phys. Rev. B 73, 165108 (2006), pp.1-9.



複数の右辺項を持つ線形方程式の数値解法(ブロック・クリロフ部分空間法)
L. Du, T. Sogabe, B. Yu, Y. Yamamoto, and S.-L. Zhang,
“A block IDR(s) method for nonsymmetric linear systems with multiple right-hand sides”,
J. Comput. Appl. Math., 235 (2011), pp. 4095-4106.



クリロフ部分空間法の前処理技術

A. Imakura, T. Sogabe, and S.-L. Zhang,          
“An implicit wavelet sparse approximate inverse preconditioner using block finger pattern”,
Numer. Linear Algebra. Appl., 16 (2009), pp.915-928.
前田祥兵, 阿部邦美, 曽我部知広, 張紹良,       
“AOR法を用いた可変的前処理付き一般化共役残差法”              
日本応用数理学会論文誌,Vol.18,No.1,2008,pp.155-170.
今倉暁,曽我部知広,張紹良,              
“Finger patternのブロック化による陰的wavelet近似逆行列前処理の高速化”,   
日本応用数理学会論文誌,Vol.17,No.4,2007,pp.523-542.
曽我部知広,鄭波,橋本康,張紹良,
“非対称Toeplitz行列のための置換行列による前処理”,  
日本応用数理学会論文誌,Vol.15,No.2, 2005,pp.159-168.



特殊な行列を係数に持つ線形方程式の数値解法
L. Du, T. Sogabe, and S.-L. Zhang,
An algorithm for solving nonsymmetric penta-diagonal Toeplitz linear systems,
Appl. Math. Comput., 244 (2014) pp. 10-15.
J. Jia and T. Sogabe,
“A novel algorithm for solving quasi penta-diagonal linear systems”,
J. Math. Chem., 51 (2013), pp. 881-889.
J. Jia and T. Sogabe,
“A novel algorithm and its parallelization for solving nearly penta-diagonal linear systems”,
Int. J. Comput. Math., 90 (2013), pp. 435-444.
J. Jia, Q. Kong, and T. Sogabe,
“A fast numerical algorithm for solving nearly penta-diagonal linear systems”,
Int. J. Comput. Math., 89 (2012), pp. 851-860.
J. Jia, Q. Kong, and T. Sogabe,
“A new algorithm for solving nearly penta-diagonal Toeplitz linear systems“
Comput. Math. Appl., 63 (2012), pp. 1238-1243.
T. Sogabe,                 
“New algorithms for solving periodic tridiagonal and periodic pentadiagonal linear systems”,
Appl. Math. Comput., 202 (2008), pp. 850-856.
T. Sogabe,              
“Numerical algorithms for solving comrade linear systems based on tridiagonal solvers”,
Appl. Math. Comput., 198 (2008), pp. 117-122.



固有値問題の数値解法と計算物理学への応用
D. J. Lee, T. Miyata, T. Sogabe, T. Hoshi, and S.-L. Zhang,
An interior eigenvalue problem from electronic structure calculations,
Japan J. Ind. Appl. Math., 30 (2013), pp. 625-633.
T. Hoshi, S. Yamamoto, T. Fujiwara, T. Sogabe, and S.-L. Zhang,
“An order-N electronic structure theory with generalized eigen-value equations and its application to a ten-million-atom system”,
J. Phys.: Condens. Matter 24 (2012) 165502, pp. 1-5.
山下達也,宮田考史,曽我部知広,星健夫,藤原毅夫,張紹良,
“一般化固有値問題に対するArnoldi(M,W,G)法”,
日本応用数理学会論文誌,Vol.21,No.3,2011,pp. 241-254.
Y. Mizuno, K. Ohi, T. Sogabe, Y. Yamamoto, and Y. Kaneda, 
“Four-point correlation function of a passive scalar field in rapidly fluctuating turbulence: Numerical analysis of an exact closure equation ”,
Phys. Rev. E 82, 036316 (2010), pp.1-9.
宮田考史,曽我部知広,張紹良,
“Jacobi-Davidson 法における修正方程式の解法 −射影空間における Krylov 部分空間のシフト不変性に基づいて− ”,
日本応用数理学会論文誌,Vol.20,No.2,2010,pp. 115-129.
宮田考史,杜磊,曽我部知広,山本有作,張紹良,
“多重連結領域の固有値問題に対する Sakurai-Sugiura 法の拡張”,
日本応用数理学会論文誌,Vol.19,No.4,2009,pp.537-550.



行列式の高速計算アルゴリズム
T. Sogabe,              
“A note on “A fast numerical algorithm for the determinant of a pentadiagonal matrix””,
Appl. Math. Comput., 201 (2008), pp. 561-564.
T. Sogabe,              
“A fast numerical algorithm for the determinant of a pentadiagonal matrix”,
Appl. Math. Comput., 196 (2008), pp. 835-841.
T. Sogabe,  
“On a two-term recurrence for the determinant of a general matrix”,
Appl. Math. Comput., 187 (2007), pp. 785-788.



基本対称式の性質
M.E.A. El-Mikkawy and T. Sogabe,
“Notes on particular symmetric polynomials with applications”,
Appl. Math. Comput., 215 (2010), pp. 3311-3317.
T. Sogabe and M.E.A. El-Mikkawy,             
“On a problem related to the Vandermonde determinant”
Discrete Appl. Math., 157 (2009), pp. 2997-2999.



k-3重対角行列の性質 (実数体 & 有限体上)
T. Sogabe and F. Yilmaz,
“A note on a fast breakdown-free algorithm for computing the determinants and the permanents of k-tridiagonal matrices”,
Appl. Math. Comput., 249 (2014) pp. 98-102.
F. Yilmaz and T. Sogabe,
“A note on symmetric k-tridiagonal matrix family and the Fibonacci numbers”,
Int. J. Pure and Appl. Math., 96 (2014), pp. 289-298.
J. Jia, T. Sogabe, and M.E.A. El-Mikkawy,
“Inversion of k-tridiagonal matrices with Toeplitz structure”
Comput. Math. Appl., 65 (2013), pp. 116-125
T. Sogabe and M.E.A. El-Mikkawy,
“Fast block diagonalization of k-tridiagonal matrices”,
Appl. Math. Comput., 218 (2011), pp. 2740-2743.
M.E.A. El-Mikkawy and T. Sogabe,
“A new family of k-Fibonacci numbers”,
Appl. Math. Comput. 215 (2010), pp. 4456-4461.



その他
J. Jia and T. Sogabe,
“On particular solution of ordinary differential equations with constant coefficients”,
Appl. Math. Comput., 219 (2013), pp. 6761-6767.