bio | website | mat.ulaval.ca/hchapdelaine/… |
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location | Quebec city | |
age | 36 | |
visits | member for | 3 years, 10 months |
seen | 4 hours ago | |
stats | profile views | 3,228 |
Oct 15 |
comment |
A simple proof that parallelizable oriented closed manifolds are oriented boundaries?
Yes indeed, the anecdote behind your first answer is quite inspiring! |
Oct 15 |
accepted | A simple proof that parallelizable oriented closed manifolds are oriented boundaries? |
Oct 15 |
comment |
A simple proof that parallelizable oriented closed manifolds are oriented boundaries?
OK thanks! This is a very nice argument! |
Oct 14 |
comment |
A simple proof that parallelizable oriented closed manifolds are oriented boundaries?
Dear Andras, what do you mean by "take all the posets"? |
Oct 14 |
revised |
Intersection of a ring class field of a quadratic field K with the cyclotomic extension of K
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Oct 13 |
revised |
Intersection of a ring class field of a quadratic field K with the cyclotomic extension of K
edited title |
Oct 13 |
revised |
Intersection of a ring class field of a quadratic field K with the cyclotomic extension of K
edited title |
Oct 13 |
asked | Intersection of a ring class field of a quadratic field K with the cyclotomic extension of K |
Oct 12 |
awarded | Nice Question |
Oct 4 |
revised |
smooth connected affine scheme over Z has good reduction almost everywhere
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Oct 4 |
revised |
smooth connected affine scheme over Z has good reduction almost everywhere
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Oct 4 |
answered | smooth connected affine scheme over Z has good reduction almost everywhere |
Oct 4 |
comment |
smooth connected affine scheme over Z has good reduction almost everywhere
The second part of your explanation is extremely enlightening and made me understand with some depth the meaning of the expression "smoothness spreads out from the generic fiber". |
Oct 4 |
accepted | smooth connected affine scheme over Z has good reduction almost everywhere |
Oct 4 |
comment |
smooth connected affine scheme over Z has good reduction almost everywhere
Dear aonymous, thanks a lot for your answer. I had completely forgotten about the Nullestellsaz (and elemination theory), but now I remember Wan der Waerden wonderful treatment in his second algebra book. I really like this kind of argument since it is extremely elementary and it goes directly to the heart of the matter without burying it into fancy words which sometimes hide the essential truth. |
Oct 3 |
revised |
smooth connected affine scheme over Z has good reduction almost everywhere
added 446 characters in body; edited tags |
Oct 2 |
comment |
smooth connected affine scheme over Z has good reduction almost everywhere
Thanks @Felipe. You said in your answer (in the reference link you gave) "...with schemes it is completely obvious...", so may be you could write down or give me a sketch? Thanks in advance |
Oct 2 |
revised |
smooth connected affine scheme over Z has good reduction almost everywhere
added 25 characters in body |
Oct 1 |
comment |
smooth connected affine scheme over Z has good reduction almost everywhere
@Ari, is it possible to prove this result using the notion of resultant combined with an decreasing induction on the dimension? |
Oct 1 |
revised |
smooth connected affine scheme over Z has good reduction almost everywhere
added 24 characters in body; edited title |