High quality preconditioning of a general symmetric positive definite matrix based on its UTU + UTR + RTU-decomposition. Kaporin, I. E. Numerical Lin. Alg. with Applic., 5(6):483-509, 1998.
High quality preconditioning of a general symmetric positive definite matrix based on its UTU + UTR + RTU-decomposition. [link]Link  High quality preconditioning of a general symmetric positive definite matrix based on its UTU + UTR + RTU-decomposition. [link]Paper  bibtex   
@article{journals/nla/Kaporin98,
  added-at = {2015-09-22T00:00:00.000+0200},
  author = {Kaporin, Igor E.},
  biburl = {http://www.bibsonomy.org/bibtex/263b2e61a6972a3b69b6cf24ce7f128c1/dblp},
  ee = {http://dx.doi.org/10.1002/(SICI)1099-1506(199811/12)5:6<483::AID-NLA156>3.0.CO;2-7},
  interhash = {5ced4de55acd7966a307d8af5d770c37},
  intrahash = {63b2e61a6972a3b69b6cf24ce7f128c1},
  journal = {Numerical Lin. Alg. with Applic.},
  keywords = {dblp},
  number = 6,
  pages = {483-509},
  timestamp = {2015-09-23T11:33:05.000+0200},
  title = {High quality preconditioning of a general symmetric positive definite matrix based on its UTU + UTR + RTU-decomposition.},
  url = {http://dblp.uni-trier.de/db/journals/nla/nla5.html#Kaporin98},
  volume = 5,
  year = 1998
}

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