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Uncool's user avatar
Uncool
  • Member for 4 years, 4 months
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3
Formality and symplectic forms on a smooth manifold
Mar 11, 2020
2
$\omega$ is a symplectic form then $L^k_{\omega}:\Omega^q(M)\to \Omega^{q+2k}(M)$ is injective for all $q\leq n-k$ and surjective for all $q\geq n-k$
Jan 21, 2022
2
What is the topology on the space of differential forms $\Omega^2(M)$?
Sep 14, 2023
1
Cohomology spectral sequence of a CW complex filtered by its skeletons
Sep 30, 2021
0
What does it mean for a linear algebraic group to act reductively
Dec 21, 2023
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10
Is the empty set countable?
7
How to compute a basis for the space of left-invariant 1-forms on a Lie group.
5
How to show that any continuous map $f:\mathbb{C}^*\to \mathbb{C}^*$ is of the form $f(z)=z^me^{g(z)}?$