New paper accepted in SIAM J. on Optimization

This new paper has been accepted:

J. Castro, S. Nasini, On geometrical properties of preconditioners in IPMs for classes of block-angular problems, SIAM Journal on Optimization, accepted (2017), in press. Previously appeared as Research Report DR 2016/03, Dept. of Statistics and Operations Research, Universitat Politècnica de Catalunya, 2016.