bio | website | mat.ulaval.ca/hchapdelaine/… |
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location | Quebec city | |
age | 37 | |
visits | member for | 4 years, 3 months |
seen | 22 hours ago | |
stats | profile views | 3,384 |
Mar 19 |
awarded | Excavator |
Mar 19 |
revised |
A direct proof that minimal primes are associated
added 75 characters in body |
Feb 19 |
revised |
Non-trivial topological line bundles over cartesian product of manifolds not coming from a pullback
edited body |
Feb 14 |
awarded | Necromancer |
Feb 7 |
awarded | Nice Question |
Jan 29 |
accepted | Intersection of a ring class field of a quadratic field K with the cyclotomic extension of K |
Jan 29 |
comment |
Intersection of a ring class field of a quadratic field K with the cyclotomic extension of K
Dear Jarek, many thanks for the nice answer. |
Jan 27 |
comment |
Properties of “incomplete finite simplicial complexes”
Hi Skupers, concerning your approach to Q1, it seems intuitively correct but nevertheless feel shaky with this kind of argument. It seems to me that whenever you remove an open face, you create a "hole" inside $|K'|$ which you can enlarge and push on the sides of the remaining complete simplices of |K'|. But again I feel a bit uncomfortable about the rigour of this kind of argument |
Jan 26 |
comment |
Properties of “incomplete finite simplicial complexes”
Sure, for example take the barycentric subdivision of a 2 simplex (a triangle plus its inside). Then remove the barycenter which is an open 0-simplex. Then this incomplete finite simplicial complex deform retracts to a triangle (a 3-cycle of 1-simplices). |
Jan 26 |
revised |
Properties of “incomplete finite simplicial complexes”
added 519 characters in body |
Jan 26 |
asked | Properties of “incomplete finite simplicial complexes” |
Jan 14 |
awarded | Nice Question |
Jan 12 |
comment |
conic structure at infinity for non-closed unbounded semi-algebraic sets
A proof of this result follows from Corollary 9.3.7 of the book "real algebraic geometry" of Bochnak, Coste and Roy. |
Jan 12 |
accepted | Homology of a finite disjoint union of open cells |
Jan 12 |
comment |
Homology of a finite disjoint union of open cells
Ok, I got it. As a special case of your construction, you may take the open ends sine curve which you glue to the x axis along the intersection points. |
Jan 12 |
revised |
Homology of a finite disjoint union of open cells
added 148 characters in body |
Jan 11 |
comment |
Homology of a finite disjoint union of open cells
Eric, now that I'm thinking about your construction, why do you get a finite disjoint union of open cells? |
Jan 11 |
comment |
Homology of a finite disjoint union of open cells
Thanks Eric for the instructive exemple. I can now better appreciate the constraints that come with the definition of a (finite) CW complex where the gluing does not affect the open cells but only their boundaries. |
Jan 11 |
asked | Homology of a finite disjoint union of open cells |
Jan 5 |
revised |
conic structure at infinity for non-closed unbounded semi-algebraic sets
deleted 10 characters in body; edited title |