NONCLASSICAL PLANE-CRYSTALLOGRAPHIC GROUPS AND THEIR APPLICATIONS Ⅰ

MIN Le-quan, NONCLASSICAL PLANE-CRYSTALLOGRAPHIC GROUPS AND THEIR APPLICATIONS Ⅰ, J. Univ. Sci. Technol. Beijing , 3(1996), No. 2, pp.133-139.

Cite this article as:

MIN Le-quan, NONCLASSICAL PLANE-CRYSTALLOGRAPHIC GROUPS AND THEIR APPLICATIONS Ⅰ, J. Univ. Sci. Technol. Beijing , 3(1996), No. 2, pp.133-139.

Cite this article as:

MIN Le-quan, NONCLASSICAL PLANE-CRYSTALLOGRAPHIC GROUPS AND THEIR APPLICATIONS Ⅰ, J. Univ. Sci. Technol. Beijing , 3(1996), No. 2, pp.133-139.

Abstract

A new nonclassical crystallographic group (NCG) theoretical system is set up.This system can describe infinite kinds of nonclassical periodic structures,especially for those with locally n-fold rotational symmetries forbidden by the rules of the classical crystallography. The formal classification of NCGs is given.

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