COBRA: An optimized code for fast analysis of ideal ballooning stability of three-dimensional magnetic equilibria. A new, fast, and accurate numerical algorithm to assess stability against ideal ballooning modes in general three-dimensional magnetic configurations of interest to controlled thermonuclear fusion is described. The code for ballooning rapid analysis (COBRA) performs this assessment by solving an eigenvalue problem in the form of a linear second-order ordinary differential equation along magnetic field lines in the configuration. An initial approximation for the eigenvalue is obtained from a fast second order matrix method. In COBRA, this approximate eigenvalue is further refined using a variational principle to obtain fourth-order convergence with the mesh size. Richardson’s extrapolation is then applied to a sequence of eigenvalues to estimate the exact eigenvalue using the coarsest possible mesh, thus minimizing the computational time ?? Cobra: Parallel path following for computing the matrix pseudospectrum ?? Cobra: a package for co-breaking analysis

References in zbMATH (referenced in 26 articles , 1 standard article )

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  1. Janovská, Drahoslava; Janovský, Vladimír; Tanabe, Kunio: A note on computation of pseudospectra (2012)
  2. Gatu, Cristian (ed.); McCullough, B. D. (ed.): Editorial: Second special issue on statistical algorithms and software (2010)
  3. Liu, Xin-Guo; Zhao, Na: A note on the distance bound for pseudospectra of matrix polynomials (2010)
  4. Rjoub, A.; Mousameh, M.; Koufopavlou, O.: Full custom low-power/high performance DDP-based Cobra-H64 cipher (2010)
  5. Cooper, G. A.; Graves, J. P.; Cooper, W. A.; Gruber, R.; Peterson, R. S.: BECOOL: ballooning eigensolver with COOL finite elements (2009)
  6. Fatouros, Stavros; Psarrakos, Panayiotis: An improved grid method for the computation of the pseudospectra of matrix polynomials (2009)
  7. Hellinckx, Peter; Verboven, Sam; Arickx, Frans; Broeckhove, Jan: Runtime prediction in desktop grid scheduling (2009)
  8. Lu, Jiqiang; Lee, Changhoon; Kim, Jongsung: Related-key attacks on the full-round Cobra-F64a and Cobra-F64b (2006)
  9. Lee, Changhoon; Kim, Jongsung; Hong, Seokhie; Sung, Jaechul; Lee, Sangjin: Related-key differential attacks on Cobra-S128, Cobra-f64a, and Cobra-f64b (2005)
  10. Lee, Changhoon; Kim, Jongsung; Sung, Jaechul; Hong, Seokhie; Lee, Sangjin; Moon, Dukjae: Related-key differential attacks on Cobra-H64 and Cobra-H128 (2005)
  11. Church, Richard L.: COBRA: A new formulation of the classic (p)-median location problem (2003)
  12. Mahdavi, Siavash Haroun; Bentley, Peter J.: Evolving motion of robots with muscles (2003)
  13. Moldovyan, N. A.: Fast DDP-based ciphers: Design and differential analysis of Cobra-H64 (2003)
  14. Atkinson, Colin; Muthig, Dirk: Component-based product-line engineering with the UML (2002)
  15. Bekas, C.; Gallopoulos, E.: Parallel computation of pseudospectra by fast descent (2002)
  16. Mezher, Dany; Philippe, Bernard: Parallel computation of pseudospectra of large sparse matrices (2002)
  17. Petkovic, Milan; Jonker, Willem: Cobra: A content-based video retrieval system (2002)
  18. Petković, Milan; Mihajlović, Vojkan; Jonker, Willem: Extending a DBMS to support content-based video retrieval: A Formula 1 case study (2002)
  19. Bekas, C.; Gallopoulos, E.: Cobra: Parallel path following for computing the matrix pseudospectrum (2001)
  20. Malek, Maria; Kanawati, Rushed: COBRA: A CBR-based approach for predicting users actions in a web site (2001)

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