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Enlightened

First to answer and accepted with score of 10 or more. This badge can be awarded multiple times.

Achim Krause

6,0411 gold badge27 silver badges33 bronze badges

earned this badge 10 times.

Does the isomorphic of the fundamental groups imply the existence of a mapping inducing an isomorphism?

Awarded Nov 10, 2021 at 17:26

RIng that is flat over a subring as a right module but not as a left module

Awarded Oct 14, 2021 at 17:19

When is the augmentation ideal projective as RG-module?

Awarded Jun 17, 2021 at 10:00

Motivation for the definition of complex orientable cohomology theory

Awarded Feb 11, 2021 at 20:52

loop space of a finite CW-complex

Awarded Sep 4, 2020 at 19:46

Is $[X, \_]$ a homology theory?

Awarded May 22, 2020 at 16:09

If $\Omega X \simeq \Omega Y$ then is $X \simeq Y$ for $X,Y$ simply connected?

Awarded Nov 22, 2019 at 14:25

Hairy ball theorem for odd-dimensional spheres

Awarded Mar 4, 2019 at 20:25

Is $SU(3)/SO(3)$ cobordant with a mapping torus?

Awarded Apr 30, 2014 at 10:53

What is the group of pointed homotopy classes of maps from $S^3 \times S^3$ to $S^3$?

Awarded Mar 14, 2014 at 12:03

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