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2014-02-17 22:19:42 +0200 | asked a question | multivariable division algorithm let f=x^3*y^3+2y^2, f1=2xy^2+3x+4y^2, f2=y^2-2y-2 in Q[x,y] using lex with x>y divide f by f1,f2 to obtain a reminder r. Repeat this exercise reversing the role of f1 and f2. |
2014-02-17 22:14:55 +0200 | asked a question | multivariable division algorithm let f=x^3*y^3+2y^2, f1=2xy^2+3x+4y^2, f2=y^2-2y-2 in Q[x,y] using lex with x>y divide f by f1,f2 to obtain a reminder r. Repeat this exercise reversing the role of f1 and f2. |
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2013-11-27 18:14:24 +0200 | marked best answer | abstract algebra There are (at least) three ways to define a cyclic of order 12 in Sage: Now evaluate |
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2013-11-18 20:19:38 +0200 | asked a question | abstract algebra An automorphism is an isomorphism between a group and itself. The identity function (x -> x) is always an isomorphism, which we consider trivial. Use Sage to construct a nontrivial automorphism of the cyclic group of order 12. Check that the mapping is both onto and one-to-one by computing the image and kernel and performing the proper tests on these subgroups. Now construct all of the possible automorphisms of the cyclic group of order 12. |