Timeline for Genus and Spinor genus of a lattice
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 30, 2012 at 17:39 | answer | added | Rainer Schulze-Pillot | timeline score: 3 | |
| Oct 14, 2011 at 18:19 | comment | added | Franz Lemmermeyer | The genus of a lattice developed from the genus of quadratic forms. See Frei, On the development of the genus of quadratic forms, Ann. Sci. Math. Quebec 3, 5-62 (1979). | |
| Oct 13, 2011 at 18:35 | answer | added | S. Carnahan♦ | timeline score: 4 | |
| Oct 13, 2011 at 14:46 | comment | added | Rob Harron | The term spinor just means an element of a certain representation of an orthogonal group (namely a spin representation) (or maybe they have the spin group itself lying around). The group is usually considered as the underlying symmetry of the physics that's going on. Similarly, when a physicist says the word vector, they usually implicitly mean an element of the standard representation of O(3) (or a bigger O(n)) that transforms under the quotient SO(3). This is why they have the term pseudovector: these flip under reflections. | |
| Oct 13, 2011 at 14:32 | answer | added | JSE | timeline score: 5 | |
| Oct 13, 2011 at 14:11 | history | asked | PQH | CC BY-SA 3.0 |