Addendum to: Symmetry classification of quasi-linear PDE’s. II: an exceptional case

2011 ◽  
Vol 67 (4) ◽  
pp. 2909-2912 ◽  
Author(s):  
Giampaolo Cicogna
Keyword(s):  
Exceptional Case ◽  
Symmetry Classification ◽  
Linear Pde’S

On the question of symmetry classification of ordered tetrahedrally coordinated structures

2008 ◽  
Vol 53 (3) ◽  
pp. 359-364 ◽  
Author(s):  
A. L. Talis ◽  
O. A. Belyaev ◽  
A. A. Reu ◽  
R. A. Talis
Keyword(s):  
Symmetry Classification

Symmetry analysis of states of ion pairs in crystals

1982 ◽  
Vol 384 (1786) ◽  
pp. 191-203
Keyword(s):  
Ion Pairs ◽  
Symmetry Reduction ◽  
Symmetry Analysis ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Symmetry Classification

The symmetry classification of the states of a pair of interacting ions in a crystal is obtained by a formal symmetry reduction not dependent upon any assumptions about the details of the interaction. The theory is given in versions valid with or without spin-orbit coupling, and for pairs in magnetic or non-magnetic hosts. Some discrepancies with previous work are discussed.

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