Topological classification of unknotted ring defects

Hiizu Nakanishi, Kiyoshi Hayashi, Hiroyuki Mori

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


Unknotted ring defects in ordered media are classified in terms of the homotopy theory. It is also investigated what type of point defects will appear when a radius of the ring defect tends to zero.

Original languageEnglish
Pages (from-to)203-213
Number of pages11
JournalCommunications in Mathematical Physics
Issue number2
Publication statusPublished - Jun 1988
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Mathematical Physics


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