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May 14, 2013 at 3:49 vote accept Chris
May 14, 2013 at 3:46 answer added darij grinberg timeline score: 5
May 14, 2013 at 3:27 comment added Jack Huizenga @David: there won't be any interesting surjective maps from a field to another ring. I think your argument is fine Chris, even if this question would be better suited to math.stackexchange.com.
May 14, 2013 at 3:21 comment added David Corwin Take $A'$ a field, $M$ a vector space of dimension m, $A$ a vector space of dimension n given some ring structure (e.g. product ring). Then we can easily find m,n (I think if both are >1?) where there are non-simple tensors.
May 14, 2013 at 3:17 history asked Chris CC BY-SA 3.0