Mathematics
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Edward ffitch

Mathematics postgraduate at Warwick University. My main area of interest and research is abstract algebra, particularly group theory, monoid theory, representation theory, universal algebra and algebraic combinatorics. Slowly getting to grips with category theory and not afraid of physics either!

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  • Last seen Oct 24 '20 at 0:30

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15 How to prove that $7^{31} > 8^{29}$ Jul 7 '15
10 Proof of the angle sum identity for $\sin$ Jan 11 '14
9 Determine if two straight lines given by parametric equations intersect Dec 30 '13
7 Direct Product of more than 2 Groups Jan 11 '14
6 Determine whether $\mathbb{Z}\times \mathbb{Z}$ and $\mathbb{Z}\times \mathbb{Z}\times \mathbb{Z}$ are isomorphic groups or not. Jan 1 '14
6 Why is a group of order 135 nilpotent? Jan 19 '14
5 Powers of 10 in binary expansion Jan 19 '14
4 The Quaternion Group and other Group Theory Counterexamples Jan 5 '14
4 Commutator subgroup of $GL_{2}(\mathbb{Z}/p^{2}\mathbb{Z})$ is $SL_{2}(\mathbb{Z}/p^{2}\mathbb{Z})$ Mar 1 '14
4 A clique in a tree decomposition is contained in a bag Apr 10 '15
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