It is shown how rather tricky induction processes, used for the accurate computation of exponentially small eigenvalues of Witten Laplacians, essentially amount to some Gaussian elimination after the proper rewriting.
@article{1452,
title = {Small singular values of an extracted matrix of a Witten complex},
journal = {CUBO, A Mathematical Journal},
volume = {11},
year = {2009},
language = {en},
url = {http://dml.mathdoc.fr/item/1452}
}
Le Peutrec, D. Small singular values of an extracted matrix of a Witten complex. CUBO, A Mathematical Journal, Tome 11 (2009) . http://gdmltest.u-ga.fr/item/1452/