List questions from knot-theory

Published on 26 Mar 2026 - 1:28

481

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Does the fundamental group detect the unlink?

Published on 18 Mar 2020 - 1:43

257

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Mayer-Vietoris sequence to find first homology for the double cover of complement of trefoil knot

Published on 18 Mar 2020 - 21:19

307

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Existence of Seifert surfaces in Ranicki

Published on 19 Mar 2020 - 5:31

209

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Is there a classification of all classifications in mathematics?

Published on 19 Mar 2020 - 10:20

200

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Does every pairing of odd and even number in $[n]$ correspond to some alternating knot?

Published on 27 Mar 2020 - 13:38

109

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Describe a map $f: S^2 \times S^2 \rightarrow S^4$ such that $f^{*}$ is an isomorphism.

Published on 25 Mar 2026 - 12:28

35

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Slice disks with only a minimum are bounded by the unknot

Published on 02 Apr 2020 - 17:44

472

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Unknot: embedded vs immersed bounding disk

Published on 25 Mar 2026 - 6:57

113

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Terminology for two trefoil knots linked together

Published on 10 Apr 2020 - 0:02

112

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Upper bound on the genus produced by Seifert's algorithm

Published on 11 Apr 2020 - 2:54

137

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Problem 22.39(b) in " Modern classical homotopy Theory " by Jeffery Strom on pg.511.(u is the natural transformation of cohomology theories.)

Published on 25 Mar 2026 - 13:58

174

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Show that a retract of a cofibration is also a cofibration.

Published on 23 Feb 2026 - 4:47

97

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Knots and Embedding

Published on 25 Mar 2026 - 16:20

113

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Express the Klein bottle as the cofibre of a map $\kappa$ between (wedges of ) copies of $S^1.$

Published on 23 Feb 2026 - 4:47

List Question

Why Eilenberg Maclane spaces $K(G,n)$ are $(n-1)$ connected?

Does the fundamental group detect the unlink?

Mayer-Vietoris sequence to find first homology for the double cover of complement of trefoil knot

Existence of Seifert surfaces in Ranicki

Is there a classification of all classifications in mathematics?

Does every pairing of odd and even number in $[n]$ correspond to some alternating knot?

Describe a map $f: S^2 \times S^2 \rightarrow S^4$ such that $f^{*}$ is an isomorphism.

Slice disks with only a minimum are bounded by the unknot

Unknot: embedded vs immersed bounding disk

Terminology for two trefoil knots linked together

Upper bound on the genus produced by Seifert's algorithm

Problem 22.39(b) in " Modern classical homotopy Theory " by Jeffery Strom on pg.511.(u is the natural transformation of cohomology theories.)

Show that a retract of a cofibration is also a cofibration.

Knots and Embedding

Express the Klein bottle as the cofibre of a map $\kappa$ between (wedges of ) copies of $S^1.$

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