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New posts in geometric-topology
Verifying 'standup maths' homeomorphism claim
general-topology
geometric-topology
popular-math
How can a mug and a torus be equivalent if the mug is chiral?
general-topology
geometric-topology
criterion to show manifold only admits trivial principal bundle
geometric-topology
low-dimensional-topology
principal-bundles
Is the complement of countably many disjoint closed disks path connected?
general-topology
connectedness
geometric-topology
Why is the Jordan Curve Theorem not "obvious"?
algebraic-topology
intuition
geometric-topology
Does every bijection of $\mathbb{Z}^2$ extend to a homeomorphism of $\mathbb{R}^2$?
general-topology
manifolds
geometric-topology
The "Easiest" non-smoothable manifold
manifolds
differential-topology
examples-counterexamples
geometric-topology
Trigonometric sums related to the Verlinde formula
number-theory
complex-analysis
algebraic-geometry
trigonometry
geometric-topology
Acting on CP(2) by conjugation
geometric-topology
quotient-spaces
projective-space
In $n>5$, topology = algebra
general-topology
algebraic-topology
geometric-topology
surgery-theory
Grothendieck 's question - any update?
algebraic-geometry
geometric-topology
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