mebassett
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# 103 Actions

 Jan25 revised Univariate and Matrix Representation of Affine Transformation grammar, correction of definitions. Jan25 suggested approved edit on Univariate and Matrix Representation of Affine Transformation Jan23 asked kernel of maps associated to the root of an irreducible polynomial Jan18 revised Prove $\ker {T^k} \cap {\mathop{\rm Im}\nolimits} {T^k} = \{ 0\}$ correct def of Im Jan18 suggested approved edit on Prove $\ker {T^k} \cap {\mathop{\rm Im}\nolimits} {T^k} = \{ 0\}$ Jan15 revised when is a ring a free module over a subring? edited tags Jan15 revised when is a ring a free module over a subring? added 3 characters in body Jan15 awarded Critic Jan14 asked when is a ring a free module over a subring? Jan14 comment most efficient way to find distinct complimenting subspaces over a finite field is there an algorithmically efficient way to complete $\{v_{n-k+1},\ldots, v_n\}$ to a basis $\{v_1,\ldots,v_n\}$. Your description solves the problem wonderfully (though I no longer need such a solution!), but I might be too silly to see an way to complete the basis. Jan14 revised most efficient way to find distinct complimenting subspaces over a finite field fixed error in denom. Jan14 comment most efficient way to find distinct complimenting subspaces over a finite field you're correct, my bad. changed question. Dec31 comment Is there a discrete version of non-commutative geometry (yet)? you might be interested in a paper from Majid arxiv.org/abs/1011.5898 Noncommutative riemannian geometry on graphs. This is not NCG in the manner of connes, though. Dec20 asked most efficient way to find distinct complimenting subspaces over a finite field Dec15 awarded Organizer Dec15 revised the split of two quantum dice not quantum groups. Dec15 suggested approved edit on the split of two quantum dice Dec9 asked What's the connection between irreducible polynomials and fixed-frobenius elements in a finite ring? Dec9 accepted finding fixed points of frobenius endomorphism of a ring of char > $p$ (not a domain) Dec9 comment finding fixed points of frobenius endomorphism of a ring of char > $p$ (not a domain) this is a very good answer. but it leaves me with a lot of nagging questions: why does the number of cycles = the number of distinct irreducible factors of $x^{p^n} -x$? Why does the number of cycles of length $d$ = the number of such factors of degree $d$? I suppose these things deserve separate questions and I should accept your answer - is that the proper etiquette here?