Conference Agenda

Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).

Please note that all times are shown in the time zone of the conference. The current conference time is: 6th Dec 2022, 01:05:24am CET

Session Overview
MS-36: Generalizations of crystallographic groups and their applications
Tuesday, 17/Aug/2021:
10:20am - 12:45pm

Session Chair: Gregory L McColm
Session Chair: Eden Delight Miro
Location: 221-2

60 2nd floor

Invited:  Pavel Kalouguine (France), Martin Cramer Pedersen (Denmark)

Session Abstract

Space groups describe the global symmetry of a periodic structure. Generalizations of space groups are often necessary to investigate additional structural features, physical properties or aperiodic structures. These generalizations include superspace groups and chromatic groups (collectively called metacrystallographic groups), groups in non-Euclidean geometries and groupoids. Whereas superspace groups are now part of the daily work of the structural crystallographer, other generalizations are less well known. The microsymposium aims at reviewing these concepts and presenting new results in the field.

For all abstracts of the session as prepared for Acta Crystallographica see PDF in Introduction, or individual abstracts below.

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10:20am - 10:25am

Introduction to session

Gregory L McColm, Eden Delight Miro

10:25am - 10:55am

Behind the curve: Generating and analysing nets and tessellations on periodic minimalsurfaces in their universal covering space

Martin Cramer Pedersen1, Jacob J. K. Kirkensgaard1,2, Stephen T. Hyde3

1Niels Bohr Institute, University of Copenhagen; 2Department of Food Science, University of Copenhagen; 3School of Chemistry, University of Sydney

10:55am - 11:25am

Flat-branched semisimplicial complexes: a versatile tool for aperiodic solids

Pavel Kalugin1, André Katz2

1Laboratoire de Physique des Solides, Université Paris-Saclay, Orsay, France; 2Directeur de recherche honoraire, CNRS, France

11:25am - 11:45am

Coordinated Colorings and their Chromatic Groups

Agatha Kristel M. Abila1, Eduard C. Taganap2, Ma. Louise Antonette N. De las Peñas3

1Southern Luzon State University - Lucena Campus, Lucena City, 4301, Philippines; 2Department of Mathematics and Physics, Central Luzon State University, Science City of Munoz, Nueva Ecija 3120, Philippines; 3Department of Mathematics, Ateneo de Manila University, Quezon City, Metro Manila 1108, Philippines

11:45am - 12:05pm

Advances in the application of magnetic and non-magnetic superspace-group symmetry

Branton J Campbell, Harold T Stokes

Brigham Young University, Physics & Astronomy, Provo, Utah, USA

12:05pm - 12:25pm

Magnetic modes compatible with the symmetry of crystals

Radoslaw Przenioslo, Piotr Fabrykiewicz, Izabela Sosnowska

University of Warsaw, Warsaw, Poland

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