SIPs: Shift-and-invert parallel spectral transformations. - Hong Zhang 006; Barry Smith 002; Michael G. Sternberg; Peter Zapol (ACM Trans. Math. Softw., 2007)

A note on the regularity of reduced models obtained by nonlocal quasi-continuum-like approaches. - Mihai Anitescu; Dan Negrut; Peter Zapol; Anter El-Azab (Math. Program., 2009)

Shift-and-invert parallel spectral transformation eigensolver: Massively parallel performance for density-functional based tight-binding. - Murat Keçeli; Hong Zhang 006; Peter Zapol; David A. Dixon; Albert F. Wagner (J. Comput. Chem., 2016)

SIESTA-SIPs: Massively parallel spectrum-slicing eigensolver for an ab initio molecular dynamics package. - Murat Keçeli; Fabiano Corsetti; Carmen Campos; José E. Román; Hong Zhang 006; Álvaro Vázquez-Mayagoitia; Peter Zapol; Albert F. Wagner (J. Comput. Chem., 2018)