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Henri Johnston's user avatar
Henri Johnston's user avatar
Henri Johnston's user avatar
Henri Johnston
  • Member for 14 years, 5 months
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I am senior lecturer in pure mathematics at the University of Exeter. My research interests are in algebraic number theory.

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17
For which finite groups $G$ is every character a virtual permutation character?
15
Search for $A_4$-extension of $\mathbb{Q}$ with particular ramification properties
11
Iterated semi-direct products
11
A finite group $G$ all of whose reps are defined over $\mathbb{Z}$ and yet $Rep(G)$ is not generated by permutation representations
10
Where are mathematics jobs advertised if not on mathjobs (e.g. in Europe and elsewhere)?