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Jun O'Hara, legally named Jun Imai (今井 淳, Imai Jun), is a Japanese mathematician who works on the fields of low-dimensional topology and knot theory. He is a professor at Chiba University.

He is famous for his discovery of Möbius energy, a type of knot energy.

He was born on 29 March 1963 in Hiroshima, Japan.

He was a PhD student of Takashi Tsuboi at the University of Tokyo.

Selected publications

• Energy of knots and conformal geometry. World Scientific, Singapore, ISBN 9812383166 (2003).
• "Energy of a knot", Topology v. 30 n. 2, pp. 241–247 (1991)

See also

• Knot energy

References

1. Alexey Sossinsky . "Normal forms of wire knots and the Euler functional:a new approach to knot energy" Independent University of Moscow booklet "Knots and Links in Fluid Flows –from helicity to knot energies" (27-30 April 2015), p.12
2. Blatt, Simon (2016). "The Gradient Flow of O'Hara's Knot Energies". arXiv:1601.02840v1 .

• 1963 births
• People from Hiroshima
• University of Tokyo alumni
• Topologists
• Living people
• 20th-century Japanese mathematicians
• 21st-century Japanese mathematicians
• Academic staff of Tokyo Metropolitan University