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earned this badge 25 times.
Maps between unitary little disks operads and non-unitary little disks operads
Awarded Jan 27 at 19:34
"Homotopy homomorphisms" of homeomorphisms of Euclidean space
Awarded Aug 14, 2023 at 11:19
A piecewise-linear or topological Fulton-MacPherson compactification
Awarded Mar 28, 2023 at 18:02
Do Sullivan's and Wilkerson's algebraic group structures on rational homotopy automorphisms coincide?
Awarded Apr 7, 2022 at 19:21
Can Quillen-Lichtenbaum recover Borel's computation?
Awarded Nov 28, 2021 at 18:55
Which Riemann surfaces arise from the Riemann existence theorem?
Awarded May 4, 2021 at 23:07
Status of the extended form of the Lichtenbaum conjecture
Awarded Dec 18, 2020 at 1:49
"The TOP h-cobordism theorem without surgery??"
Awarded Jul 15, 2020 at 0:42
When does rationalization commute with homotopy fixed points?
Awarded Jun 13, 2019 at 9:20
What are normalized singular chains good for?
Awarded Feb 4, 2016 at 16:14
Are the homology and cohomology Serre spectral sequences dual to each other?
Awarded Jun 23, 2015 at 20:13
Is the quotient map of the action of homeomorphisms on embeddings well-behaved?
Awarded May 27, 2015 at 9:53
Are generalized cohomology theories a homotopy category of some category of invariants?
Awarded Dec 1, 2014 at 6:40
What does this naive attempt at $S^1$-equivariant homology describe?
Awarded May 18, 2014 at 17:30
What is the Cayley projective plane?
Awarded Feb 16, 2013 at 22:05
What is known about K-theory and K-homology groups of (free) loop spaces?
Awarded Nov 4, 2012 at 20:50
Applications of string topology structure
Awarded Feb 18, 2011 at 23:35
Twistings for other cohomology theories
Awarded Jan 10, 2011 at 20:20
When is a TQFT the dimensional reduction of a higher dimensional TQFT?
Awarded Dec 18, 2010 at 15:05
Is there a Morse theory proof of the Bruhat decomposition?
Awarded Nov 23, 2010 at 12:50
What is the Hopf algebra structures in the homology of the based loop spaces of $E_7$ and $E_8$?
Awarded Nov 15, 2010 at 17:35
Is there a map of spectra implementing the Thom isomorphism?
Awarded Jun 9, 2010 at 17:05
Are there graph models for other moduli spaces?
Awarded Jun 9, 2010 at 16:20
Lambda-operations on stable homotopy groups of spheres
Awarded Apr 1, 2010 at 17:05
What is the status of the PL-pseudoisotopy stability theorem?
Awarded Nov 24, 2009 at 10:40

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