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IUCr 1995 Report - Commission on Aperiodic Crystals

The activities of the Commission have been essentially oriented towards completing the checklist intended for the publication of incommensurate crystal structures in the journals of the Union. A great deal of effort was dedicated to coordinating international meetings specializing in the field of aperiodic crystals and serving on programme committees. The Commission maintains a WWW server relating to the activities in the field of aperiodic crystals (http://aperiodic.smith.edu/aperiodic). Future meetings and conferences on this topic (of which Commission members are aware) are listed on the server.

The members of the Commission participated actively in the preparation of the Aperiodic'94 conference proceedings by carefully selecting the contributions. The volume was published by World Scientific (Singapore) in 1995 and delivered to the participants 9 months after the meeting (which took place in Les Diablerets, Switzerland).

Members of the Commission had the opportunity to meet during the International School on Quasicrystals held in Balatonfüred, Hungary, 13-20 May 1995. An open discussion meeting was organized at that conference in order to exchange new ideas on the definition of aperiodic crystals. The presence of specialists from many different fields related to quasicrystals, including mathematicians, was highly productive.

The work on the checklist for the publication of incommensurate crystal structures continued actively in 1995, following comments and suggestions from members of the Commission on Journals. The final version of the checklist has been accepted by the Commission on Aperiodic Crystals and will be submitted for publication in Acta Crystallographica.

The Commission was active in the coordination and the preparation of sessions related to aperiodic crystals in many international conferences. In particular, members of the Commission participated actively in the Programme Committees of ECM-16 held in Lund, Sweden, in August 1995, of the NATO Advanced Study Institute on the Mathematics of Long Range Aperiodic Order held in Waterloo, Canada, in August 1995, of the Seattle Congress, and of ECM-17 to be held in Lisbon, Portugal, in 1997. The Chairman of the Commission is working closely with the Programme Committee of Aperiodic'97, which will take place in Alpe d'Huez, France, in August 1997; many members of this Commission are members of that Committee.