研究者情報
■ 学位■ 研究キーワード■ 研究分野■ 学歴 2013年04月 - 2016年03月, 埼玉大学, 大学院理工学研究科, 博士後期課程
2011年04月 - 2013年03月, 埼玉大学, 大学院理工学研究科, 博士前期課程
2007年04月 - 2011年03月, 埼玉大学, 理学部, 数学科
業績情報
■ 論文A Möbius invariant discretization of O’Hara’s Möbius energySimon Blatt; Aya Ishizeki; Takeyuki Nagasawa
Journal of Knot Theory and Its Ramifications,
巻:31,
号:03, 2022年03月,
[査読有り]We introduce a new discretization of O’Hara’s Möbius energy. In contrast to the known discretizations of Simon and Kim and Kusner it is invariant under Möbius transformations of the surrounding space. The starting point for this new discretization is the cosine formula of Doyle and Schramm. We then show [Formula: see text]-convergence of our discretized energies to the Möbius energy.
World Scientific Pub Co Pte Ltd, 研究論文(学術雑誌)
DOI:https://doi.org/10.1142/s021821652250016xDOI ID:10.1142/s021821652250016x,
ISSN:0218-2165,
eISSN:1793-6527 The invariance of decomposed Möbius energies under inversions with center on curvesAya Ishizeki; Takeyuki Nagasawa
Journal of Knot Theory and Its Ramifications,
巻:25,
号:02,
開始ページ:1650009,
終了ページ:1650009, 2016年02月,
[査読有り]It is well known that one of O’Hara’s knot energies is called the Möbius energy because of its invariance under Möbius transformations. We showed in a previous paper that the Möbius energy can be decomposed into three parts that retain invariance but we left open the question of invariance regarding inversions with respect to spheres centered on a knot. Here, we answer this question under the assumption that the knots have extra regularity. The result holds not only for knots but also for closed curves in [Formula: see text].
World Scientific Pub Co Pte Lt, 研究論文(学術雑誌)
DOI:https://doi.org/10.1142/s0218216516500097DOI ID:10.1142/s0218216516500097,
ISSN:0218-2165,
eISSN:1793-6527 A decomposition theorem of the Möbius energy II: variational formulae and estimates
Aya Ishizeki
Math. Ann. 363 (1-2), 617-635, 2015年, [査読有り]
研究論文(学術雑誌)
ORCID:210563537
A decomposition theorem of the Möbius energy I: Decomposition and Möbius invariance Aya Ishizeki; Takeyuki Nagasawa
Kodai Mathematical Journal,
巻:37,
号:3, 2014年10月,
[査読有り]Tokyo Institute of Technology, Department of Mathematics, 研究論文(学術雑誌)
DOI:https://doi.org/10.2996/kmj/1414674619DOI ID:10.2996/kmj/1414674619,
ISSN:0386-5991