A consideration on the condition number of extremely ill-conditioned matrices Nishi, Tetsuo Rump, Siegfried M. Oishi, Shin’ichi 2013 - TUHH Open Research
On the generation of very ill-conditioned integer matrices Nishi, Tetsuo Rump, Siegfried M. Oishi, Shin’ichi 2011 - TUHH Open Research
Some properties and generation methods of integer matrices with large condition number Nishi, Tetsuo Rump, Siegfried M. Oishi, Shin’ichi 2010 - TUHH Open Research
A Method for the generation of a class of ill-conditioned matrices Nishi, Tetsuo Ogita, Takeshi Oishi, Shin’ichi Rump, Siegfried M. 2008 - TUHH Open Research