Complete online database of maximal subgroups of subperiodic groups at the Bilbao Crystallographic Server.

J Appl Crystallogr

Departamento de Física Universidad del País Vasco UPV/EHU Spain.

Published: April 2025


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Article Abstract

The section of the Bilbao Crystallographic Server (https://www.cryst.ehu.es) dedicated to subperiodic groups includes the program , which gives online access to the complete database of maximal subgroups of subperiodic groups. All maximal non-isotypic subgroups as well as all maximal isotypic subgroups of indices up to 9 are listed individually, together with the series of maximal isotypic subgroups of subperiodic groups. These data were compared with those of Litvin [(2013), ], which revealed several differences, discussed here in detail.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11957414PMC
http://dx.doi.org/10.1107/S1600576725001499DOI Listing

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