This is a preview. Log in through your library . Abstract It is proved that if $G$ is a finite group, $H$ a normal subgroup, and $A$ a finitely generated $G$-module ...
An artificial spin ice array exploits two-dimensional chirality to take a step towards technology. The functionality of the micromagnetic array may be understood by analogy with a mechanical ratchet ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback