Allen's non-realizability conjecture for unknown pairs of T(2,n)
Allen's non-realizability conjecture for unknown pairs of T(2,n)
For an odd positive integer , consider a torus knot and the pairs of normal Euler number and first Betti number of smooth surfaces in bounded by . The theorem in the source identifies a collection of pairs whose realizability is unknown: if , for ; if , for . Allen's non-realizability conjecture. All unknown points in that collection are not realizable. The paper provides counterexamples for and , so this conjecture is refuted.
Sources & referencesView supporting material
Primary source
Kouki Sato, “Counterexamples to Allen's conjectures”, arXiv:2407.12049 (2024).
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