Unknotting information from $4$-manifolds
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- by T. D. Cochran and W. B. R. Lickorish PDF
- Trans. Amer. Math. Soc. 297 (1986), 125-142 Request permission
Abstract:
Results of S. K. Donaldson, and others, concerning the intersection forms of smooth $4$-manifolds are used to give new information on the unknotting numbers of certain classical knots. This information is particularly sensitive to the signs of the knot crossings changed in an unknotting process.References
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Additional Information
- © Copyright 1986 American Mathematical Society
- Journal: Trans. Amer. Math. Soc. 297 (1986), 125-142
- MSC: Primary 57M25; Secondary 57M12, 57Q20, 57Q60
- DOI: https://doi.org/10.1090/S0002-9947-1986-0849471-4
- MathSciNet review: 849471