@article{15422, author = {Tom{\'a}{\v s} Gergelits and Kent-Andre Mardal and Bj{\o}rn Nielsen and Zden{\v e}k Strako{\v s}}, title = {Laplacian Preconditioning of Elliptic PDEs: Localization of the Eigenvalues of the Discretized Operator}, year = {2019}, journal = {SIAM Journal on Numerical Analysis}, volume = {57}, pages = {1369 - 1394}, month = {Feb-01-2019}, publisher = {SIAM}, address = {SIAM Journal of Numerical Analysis}, issn = {0036-1429}, url = {https://epubs.siam.org/doi/10.1137/18M1212458https://epubs.siam.org/doi/pdf/10.1137/18M1212458}, doi = {10.1137/18M1212458}, }