robust iterative methods for near singular linear systems

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chakovolvo
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Joined: Sun Dec 20, 2015 7:34 pm

robust iterative methods for near singular linear systems

Post by chakovolvo »

hello, i need to solve a near singular linear system of equations to do inelastic projection as a fail-safe in collision handling, i tried sparseqr from eigen, gmres from iml and an own implementation of minresqlp, the only method near to success was gmres but it breaks down eventually ( because of Arnoldi vectors of norm 0 i guess) ,

http://www.cs.columbia.edu/cg/pdfs/RTSC.pdf
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