84     typedef Matrix<Index,Dynamic,1> IndexVector;  typedef
340     IndexVector m_etree; // Column elimination tree 
401   IndexVector firstRowElt;  in analyzePattern()
406     IndexVector post, iwork;   in analyzePattern()
460   typedef typename IndexVector::Scalar Index;   in factorize()
506   IndexVector segrep(m); segrep.setZero();  in factorize()
507   IndexVector parent(m); parent.setZero();  in factorize()
508   IndexVector xplore(m); xplore.setZero();  in factorize()
509   IndexVector repfnz(maxpanel);  in factorize()
510   IndexVector panel_lsub(maxpanel);  in factorize()
511   IndexVector xprune(n); xprune.setZero();  in factorize()
512   IndexVector marker(m*internal::LUNoMarker); marker.setZero();  in factorize()
527   IndexVector relax_end(n);  in factorize()
546   IndexVector panel_histo(n);  in factorize()
580       VectorBlock<IndexVector> panel_lsubk(panel_lsub, k, m);  in factorize()
581       VectorBlock<IndexVector> repfnz_k(repfnz, k, m);   in factorize()
592       VectorBlock<IndexVector> segrep_k(segrep, nseg1, m-nseg1);   in factorize()