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Luigi M
sometimes I spend my day over math books
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Top Questions
14
votes
Compact subset in colimit of spaces
general-topology
algebraic-topology
compactness
limits-colimits
asked Dec 21, 2015 at 17:20
math.stackexchange.com
12
votes
Integer solutions of $x^3+y^3=z^3$ using methods of Algebraic Number Theory
number-theory
algebraic-number-theory
diophantine-equations
asked Nov 29, 2015 at 11:26
math.stackexchange.com
10
votes
Identify the sphere bundle of a complex line bundle $BD_{2n}\to BU(1)$
at.algebraic-topology
homotopy-theory
principal-bundles
asked Jun 6, 2017 at 21:21
mathoverflow.net
8
votes
Adams spectral sequence and short exact sequences. Some clarifications
at.algebraic-topology
homological-algebra
stable-homotopy
spectral-sequences
steenrod-algebra
asked Jun 24, 2017 at 15:27
mathoverflow.net
8
votes
Non-trivial examples of Stably diffeomorphic 4-manifolds
at.algebraic-topology
examples
asked Mar 15, 2017 at 16:02
mathoverflow.net
8
votes
Euler Characteristic of a boundary of a Manifold
algebraic-topology
proof-verification
manifolds-with-boundary
asked Oct 10, 2015 at 20:41
math.stackexchange.com
7
votes
Something wrong with proof: left adjoint functor preserves projectives
category-theory
homological-algebra
abelian-categories
asked Jul 18, 2015 at 9:36
math.stackexchange.com
7
votes
Lefschetz number of $f\colon \Bbb R P^1\to \Bbb R P^1$
algebraic-topology
differential-topology
asked Aug 23, 2017 at 3:18
math.stackexchange.com
6
votes
A problem with the identification of the Thom class as a differential form as done in Bott-Tu
algebraic-topology
differential-topology
vector-bundles
asked May 8, 2017 at 10:21
math.stackexchange.com
6
votes
The oriented Grassmannian $\widetilde{\text{Gr}}(k,\mathbb{R}^n)$ is simply connected for $n>2$
algebraic-topology
grassmannian
classifying-spaces
asked Jan 13, 2016 at 12:32
math.stackexchange.com
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