Lionel Pournin
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The combinatorics group at IRIF (the institute of computer science of the Université Paris Cité) where I got my habilitation in 2013.
The Institute of Mathematics of the École Polytechnique Fédérale de Lausanne where I got my PhD in 2005 under the supervision of Tom Liebling.
The École des Mines de Nancy where I studied materials science and got a degree of ingénieur civil des Mines in 1999.
The Institut Élie Cartan of the Université de Lorraine where I studied functional analysis and got a master of mathematics in 1998.
The Séminaire francilien de géométrie algorithmique et combinatoire.
The Open Problems Project and the question whether the flip-graph of a finite set of points in 3-dimensions is always connected.
The Online Encyclopedia of Integer Sequences and the theorem of the day.
... and two off-topic (?) links:
pouet.net, the demoscene meeting place.
Ki-oon, a french manga editor which I recommend.
Coder colors, not real-time, but demo'ish... Particles submitted to a central force eventually form a planet. Note the satellite! This POV-ray generated movie was shown at the end of my PhD public defence talk.