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| 2013-01-15 04:21:17 +0200 | commented question | Extension degree over function field By y^2 - x^2 = 0, it means y = x or y = -x, the degree is one then. |
Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.