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Overflowian
  • Member for 8 years, 2 months
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19
Conceptual definition of the extension of a connection to 1-forms
Nov 30, 2021
question
15
Possible mistake in Cohen notes "Immersions of manifolds and homotopy theory" (version 27 March 2022)
Jun 26, 2022
question
15
Examples of odd-dimensional manifolds that do not admit contact structure
Mar 13, 2019
question
11
Classification of bundles, Postnikov towers, obstruction theory, local coefficients
Apr 14, 2019
question
10
Implicit function theorem with continuous dependence on parameter
Nov 22, 2021
question
9
Rational slice knot that is not slice
Sep 16, 2020
question
9
About the cohomology of $BG^\delta$. Making a Lie group discrete
Mar 27, 2020
question
8
Obstruction to homotopy, cohomology operations and Dold-Whitney theorem
Jul 5, 2019
question
8
Which curves are boundary of pseudoholomorphic curves?
Jun 12, 2020
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7
Quotient by a non-free action of a Lie group and manifolds with corners
Jul 27, 2018
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15
Since the Curvature tensor depends on a connection (not metric), is it the relevant quantity to characterize the curvature of Riemannian manifolds?
15
Cup and wedge product in singular and de Rham cohomology
12
Intuitively, what does it mean that two charts are compatible?
12
What is an instanton? (On a complex surface or a differentiable 4-manifold )
11
Banach space with respect to two norms must be Banach wrt the sum of the norms?