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bio website northeastern.edu/suciu
location Boston
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visits member for 2 years, 7 months
seen 9 hours ago

Apr
3
comment Kahler structure on holomorphic principal bundles
What's a "principle" bundle?
Nov
21
comment Action of $\pi_1(S)$ on its commutator subgroup
I thought the question referred to the action of $G$ on the second derived quotient of $G$, that is, $H_1([G,G])$, rather than on the second nilpotent quotient of $G$, no?
Oct
18
revised Must the union of these two aspherical spaces be aspherical?
added reference
Oct
13
answered good reference on brieskorn manifold
Oct
1
answered Must the union of these two aspherical spaces be aspherical?
Sep
16
awarded  Yearling
Jul
29
comment On the wikipedia entry for Borel-Moore homology
Maybe there is some language confusion here, but doesn't "finite CW-complex" mean a CW-complex with finitely many cells (that is, both finite-dimensional and finite type)? So how would $X=\mathbb{Z}$ (with the discrete topology) fit in that context?
Jul
15
awarded  Informed
Jul
15
revised Cohomology of submanifold complements
added 250 characters in body
Jul
15
revised Cohomology of submanifold complements
edited body
Jul
15
comment Cohomology of submanifold complements
Certainly property 3 will fail in that case, provided the degree of the hypersurface is at least 2.
Jul
15
answered Cohomology of submanifold complements
Jun
25
awarded  Revival
Apr
11
answered Genus one fibered links
Apr
8
comment When are Brieskorn Manifolds Homeomorphic?
The 3-dimensional Brieskorn manifolds are discussed at length by John Milnor in his paper On the 3-dimensional Brieskorn manifolds M(p,q,r), in: Knots, groups, and 3-manifolds (Papers dedicated to the memory of R. H. Fox), pp. 175–225. Ann. of Math. Studies, No. 84, Princeton Univ. Press, Princeton, N. J., 1975, MR0418127.
Apr
7
answered Do Nielsen transformations on a presentation preserve the homotopy type of the corresponding presentation complex?
Mar
25
awarded  Nice Answer
Mar
20
awarded  Enthusiast
Feb
26
comment Genus of Y^3 = X^4 - 1.
Yes, thanks for pointing that out: I was implicitly assuming $f$ is reduced. I added now the more general form of this result.
Feb
26
revised Genus of Y^3 = X^4 - 1.
added 575 characters in body