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20141117 08:54:16 +0200  asked a question  All Ideals of Ring For given group G, by G.subgroups(), we can list all subgroups. now my question is : Is there something for subgroups() for finding all left ideals of a given ring. For instance, k = GF(5); M = MatrixSpace(k,2,2) How can I have all left ideals? 
20140115 15:09:25 +0200  commented answer  Subgroups of Linear Groups It is not working on mu SAGE. I have following error: Traceback (most recent call last): File "<stdin>", line 1, in <module> File "_sage_input_26.py", line 10, in <module> exec compile(u'open("___code___.py","w").write("# * coding: utf8 *\\n" + _support_.preparse_worksheet_cell(base64.b64decode("RyA9IFNMKDIsR0YoMykpCmEgPSBHLmdlbnMoKVswXSA7IGEKSCA9IEcuc3ViZ3JvdXAoW2FdKSA7IEg="),globals())+"\\n"); execfile(os.path.abspath("___code___.py")) File "", line 1, in <module> File "/private/var/folders/rp/rpRaJRnOEQyzp4ftzijESU+++TI/Tmp/tmpYB4kTc/___code___.py", line 5, in <module> exec compile(u'H = G.subgroup([a]) ; H File "", line 1, in <module> File "parent.pyx", line 620, in sage.structure.parent.Parent.__getattr__ (sage/structure/parent.c:5943) File "misc 
20140115 10:37:38 +0200  asked a question  Subgroups of Linear Groups I want to find the subgroup which is generated by two elements.
Why do I have this error:

20140102 02:26:09 +0200  commented question  Error with Automorphism group @kcrisman If order() replace with Order(), then the error eliminates. 
20140101 13:46:23 +0200  received badge  ● Student (source) 
20140101 13:00:14 +0200  asked a question  Error with Automorphism group I use this for computing automorphism group: but when I want to compute order of automorphism group, I cant compute and I have this error: 
20131229 02:19:04 +0200  commented question  Automorphism Group of a Group @kcrisman we need automorphism group, as our research continues in graph theory and we use graph tools of sage and GAP doesnt have such tools. 
20131228 04:59:48 +0200  asked a question  Automorphism Group of a Group I used to find the automorphism group of a group with GAP. Now, I would like to know that Is the way which I can compute automorphism group of a group with SAGE without using GAP? 
20130421 16:54:11 +0200  commented question  affine variety in che soali akhe? 
20130217 01:47:54 +0200  commented answer  LocallyDihedral 2group I check but I can't find any thing. 
20130214 15:09:54 +0200  asked a question  LocallyDihedral 2group Let $Z_{2^{\infty}}$ be 2prufer group. I want to define $G=Z_{2^{\infty}}$semidirect $ b$ =$<$$a$$,bb^2=1,b^{1}ab=a^{1} $, for $a$ $\in A>$ in sage. I think this is possible in GAP but I don't know how to define? 
20130206 14:58:23 +0200  marked best answer  Onedimension subspace You need to take care of the zero element of the subspace. 
20130205 07:34:43 +0200  commented answer  Onedimension subspace how can I take care of the zero element? 
20130205 03:33:19 +0200  asked a question  Onedimension subspace I am looking for onedimension subspace $x$ such that for every $v\in$$\langle x\rangle$ we have $v.v=0$. I try this: V = VectorSpace(GF(5),2) but I have trouble with it: sage gives me subspace "Vector space of degree 2 and dimension 1 over Finite Field of size 5 Basis matrix: [1 0]" this subspace is not satisfied my condition 
20130127 07:29:16 +0200  asked a question  permutation representation Dear all Does sage support groups such as Frobenius groups or general affine group. How can I find the permutation representation of an arbitrary group. Best regrad 
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20130119 13:41:45 +0200  marked best answer  Product of Elements in Group Use 
20130119 01:34:05 +0200  asked a question  Product of Elements in Group I have problem with product of two elements. it runs for H[18] and H[6] and it has no error but it doesn't run for H[18] and H[26]. I can't figure out this problem. I was wondering if you could help me. 
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20121030 16:32:49 +0200  asked a question  Finding subgroup summand Hi everyone, Let (G,.) be group with two subgroup H and K, I want to know when HK=G? $HK={h.k  h\in H ,k\in K}$ I try this I have no idea how define " * " 
20121017 12:17:15 +0200  asked a question  Create graph I want define new graph in sage. Let G be finite group. The graph's vertices are subgroup and two vertices are adjacent if and only if sum of two subgroup is G. I have trouble with define this graph in sage. Any suggestion? I have idea in gap but I don't have idea what can I change in sage? obtain a list of all subgroups n is the number of divisors of G 