journal menuBuy article online - an online subscription or single-article purchase is required to access this article.
research papers
In centrosymmetric symmorphic space groups the correct Σ2 solution need not be one with the best consistency. In these space groups the correct Σ2 solution can be found using a new criterion related to the Harker–Kasper inequalities:
in which the summations over h and k are restricted to those terms for which |Uh|, |Uh + k|, |Uh − k| are large and |Uk| is small. The weights in HKC are consistent with the Harker–Kasper inequalities for T.
Subscribe to Acta Crystallographica Section A: Foundations and Advances
