953 reputation
817
bio website a.b.c.d
location Paris, France
age 55
visits member for 3 years, 8 months
seen 2 days ago

Not much to say.


Nov
1
awarded  Nice Answer
Jun
11
awarded  Autobiographer
Jun
8
awarded  Constituent
Jun
8
awarded  Caucus
Mar
22
awarded  Yearling
Jan
13
awarded  Good Answer
May
26
revised Intersection of Cubic curves
edited tags
May
25
revised Different formulations of Class Field Theory
edited tags
May
25
comment Non-associative, non-commutative binary operation with a identity
what's the point of adding y if it is zero! Are you sure this was what you meant?
May
25
comment When $G'$/$G''$ and $G''$ both are cyclic groups
@Basil R: you should edit your title and question.
May
24
revised construction of the Witt group
edited tags
May
24
comment A question about integral quadratic forms
The left part of your equation is what mathematicians call a (integral) quadratic form. There is a lot of results about the integers n they can represent or not.
May
24
revised A question about integral quadratic forms
edited tags
May
24
comment Prove that if $(ab)^i = a^ib^i \forall a,b\in G$ for three consecutive integers $i$ then G is abelian
thanks a lot for these references. We speak of Exponent semigroup, Levi semigroup, etc. What is the operation on these sets?
May
23
comment How to split an integral exactly in two parts
@Byron: thanks for this careful explanation with references.
May
23
revised Graph Theory problem
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May
23
revised References for Smale's Geometry
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May
23
revised Why does symplectic geometry have many applications in mathematics
edited tags
May
23
revised Floer theory or Floer homology, an introduction for physicists needed
edited tags
May
23
revised Floer theory or Floer homology, an introduction for physicists needed
edited tags