Topological insulators and superconductors
... We now try to understand how one can put the above manipulations that lead to the Z2 index for TRI topological insulators into a bigger context. Let us review what (topological) classification schemes we already encountered. The first example was the characterization of a spin-1/2 in a magnetic fiel ...
... We now try to understand how one can put the above manipulations that lead to the Z2 index for TRI topological insulators into a bigger context. Let us review what (topological) classification schemes we already encountered. The first example was the characterization of a spin-1/2 in a magnetic fiel ...
Evolving Graph Databases under Description Logic - CEUR
... where β is a basic action and K is an arbitrary ALCHOIQbr–formula. The special symbol denotes the empty action. An action α is ground if it has no variables. An action α0 is called a ground instance of an action α if α0 is ground and it can be obtained from α by replacing each variable by an indiv ...
... where β is a basic action and K is an arbitrary ALCHOIQbr–formula. The special symbol denotes the empty action. An action α is ground if it has no variables. An action α0 is called a ground instance of an action α if α0 is ground and it can be obtained from α by replacing each variable by an indiv ...
