All Knot Groups Are Metric.
Bradd E. Clark, Victor P. Schneider (1984)
Mathematische Zeitschrift
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Bradd E. Clark, Victor P. Schneider (1984)
Mathematische Zeitschrift
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G. Ananda Swarup (1971)
Mathematische Zeitschrift
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Chichen M. Tsau (1988)
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Ronald Fintushel, Ronald J. Stern (1980)
Mathematische Zeitschrift
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I.M.S. Dey, J. Cossey, S. Meskin (1971)
Mathematische Zeitschrift
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Richard Hartley (1980)
Mathematische Zeitschrift
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Makoto Sakuma (1986)
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C. Kearton, E. Bayer-Fluckiger (1989)
Mathematische Zeitschrift
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Gerhard Burde (1990)
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Francisco González-Acuña (1994)
Revista Matemática Iberoamericana
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A n-knot group is the fundamental group of the complement of an n-sphere smoothly embedded in Sn+2. Artin gave in 1925 ([A]) an algebraic characterization of 1-knot groups. M. Kervaire gave in 1965 ([K]) an algebraic characterization of n-knot groups for n ≥ 3. The problem of characterizing algebraically 2-knot groups has been posed several times (see for example [Su, Problem 4.7]). Ribbon 2-knot groups have been characterized algebraically by Yajima [Y]. ...
Ronald Fintushel, Ronald Stern (1981)
Mathematische Zeitschrift
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Steven P. Plotnick (1983)
Mathematische Zeitschrift
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Steven A. Bleiler (1985)
Mathematische Zeitschrift
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