<div>Hi all</div>
<div>I have a matrix representing electrical currents (KCL). In my design, there are some elements which are totally isolated from the rest of the circuit, which means that they form the matrix's nullspace.</div>
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<div>My questions are:</div>
<div>*) Can I use Petsc to derive the nodes which compose the nullspace</div>
<div>*) Can I then remove them from the KSP? If so, how?</div>
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<div>Thanks much</div>
<div>Yaron</div>
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