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Pierre Dehornoy's user avatar
Pierre Dehornoy's user avatar
Pierre Dehornoy's user avatar
Pierre Dehornoy
  • Member for 14 years, 3 months
  • Last seen more than 1 year ago
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Maître de conférences at Université de Grenoble (France)

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40
Tying knots with reflecting lightrays
Sep 15, 2010
question
26
Planar minor graphs
Mar 27, 2012
answer
19
Proper subgroup of GL(n,Z) isomorphic to GL(n,Z)?
Sep 15, 2010
answer
18
Why are $S^3-K$ and $\operatorname{SL}(2,\mathbb R)/{\operatorname{SL}(2, \mathbb Z)}$ diffeomorphic? Here $K$ is a trefoil knot in $S^3$
Apr 13, 2012
question
16
Winning strategy at chomp (a chocolate bar game)?
Jan 5, 2011
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15
Is there a simple criterion to determine if two parallelograms intersect?
Sep 16, 2010
question
12
Genus one fibered links
Apr 11, 2013
question
12
Fibered knot with periodic homological monodromy
Apr 23, 2013
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7
Is a rhombus rigid on a sphere or torus? And generalizations
Sep 29, 2010
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6
Books for hyperbolic geometry ( surfaces ) with exercises?
Sep 29, 2010
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How to interpret the Euler class?