Masayuki Yamasaki (at) surgery.matrix.jp

Welcome to Masayuki Yamasaki's Site!
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What's New ?

A slightly different version of "Ryutandan" written in Japanese by Kyoka Izumi around 1896 has been added to the ebooks page. (November 6, 2024)
A short novel "Ryutandan" written in Japanese by Kyoka Izumi around 1896 has been added to the ebooks page. (November 2, 2024)
A novel "Teriha Kyogen" written in Japanese by Kyoka Izumi around 1896 has been added to the ebooks page. (October 29, 2024)
A short story "Meienki" written in Japanese by Kyoka Izumi around 1900 has been added to the ebooks page. (October 5, 2024)
Early stories "Ichi-no-maki", ... , "Chikai-no-maki" written in Japanese by Kyoka Izumi around 1896 have been added to the ebooks page. (September 25, 2024)
"Amerika-saku wo Koete" by Eiko Kamiya has been added to the ebooks page. (July 3, 2024)
Several epub files related to "Irezumi Chohan" have been added to the ebooks page. (December 20, 2022)
I edited the article "Old Days (Mako Midori and Ikuko Taguchi" and added two new pages "Articles from theatrical magazines published around 1973, 1974", and "Tomoko Saito". They are all written in Japanese. (August 20, 2022)
I made a page of ebooks, and placed an epub file of "Aru Shisei no To" by Shin Hasegawa. (August 3, 2022)
I retired yesterday. I am now free! (April 1, 2022)
The orientable surface case of my work on rotation numbers of regular closed curves was published in Josai Mathematical Monographs vol.13. -- Apr. 27, 2021
I may attend the following meetings and conferences in the academic year 2021/2022:
- Intelligence of Low-dimensional Topology (RIMS, zoom)
I may attend the following meetings and conferences in the academic year 2018/2019:
- A RIMS Conference "Geometry, Algebra and Combinatorics in Transformation group theory" (RIMS of Kyoto University, May 22--26, 2017)
- The 65th Topology Symposium (Shinshu Univ. August 18 --21, 2018)
- The 45th Symposium on Transformation Groups (Kumamoto City International Center , December 6--8, 2018)
- Fukuoka Homotopy Theory Seminar (Fukuoka University Seminar House, Jan. 13--14, 2019)
- MSJ Annual Meeting 2019 (Tokyo Inst. Tech., Mar. 17--20, 2018)
I wrote a paper "Whitney-type formula for non-null-homotopic curves on aspherical surfaces". Also available at https://arxiv.org/abs/1709.00929. Any comments will be welcomed. -- Sept. 4, 2017
* Last updated on Sept. 28, 2018.
* Old Versions [2017-09-04]
I replaced the manuscript "Winding numbers of regular closed curves on aspherical surfaces" with a new version. Any comments will be welcomed. -- Aug. 10, 2017
Created the 3D maps page. -- Aug. 9, 2017
I may attend the following meetings and conferences in the academic year 2017/2018:
- A RIMS Conference "Algebraic Topology focused on Transformation Groups" (RIMS of Kyoto University, May 22--26, 2017)
- The 64th Topology Symposium (Tokai Univ., Takanawa Campus, August 21 --24, 2017)
- AGM2017 Algebraic and geometric models of spaces and realted topics (Shinshu University, September 5 -- 7, 2017)
- Topology and Geometry of Low-dimensional Manifolds (Nara Women's University, Collaboration Center Z306, October 25--28, 2017)
- Topological invariants in low dimensional topology (Matsue Terrsa and Shimane University, Oct. 31 -- Nov. 2, 2017)
- The 44th Symposium on Transformation Groups (Meeting Room 403, Fukui City Phoenix Plaza, November 16--18, 2017)
- Symposium on Homotopy Theory 2017 (Manabi CAN, Takamatsu), November 24--26, 2017)
- Fukuoka Homotopy Theory Seminar (Fukuoka University Seminar House, Jan. 7--8, 2018)
- MSJ Annual Meeting 2018 (Univ. Tokyo, Mar. 18--21, 2018)
I may attend the following meetings and conferences in the academic year 2016/2017:
- A RIMS Conference "New transformation groups and related topics" (RIMS of Kyoto University, May 23--26, 2016)
- Symposium on Homotopy Theory (Satellite Campus Hiroshima, November 12--14, 2016)
- The 43rd Symposium on Transformation Groups (Himeji Civic Hall, November 17--19, 2016)
- Winter Seminar in Algebraic Topology (Okayama University of Science)
- Fukuoka Homotopy Theory Seminar (Fukuoka University Seminar House, Jan. 8--9, 2017)
- The 12th East Asian School of Knots and Related Topics (The University of Tokyo, Feb. 13--17, 2017)
- Low dimensional topology and number theory IX (Innovation Plaza, Momochihama, Fukuoka, Mar. 15--18, 2017)
- MSJ Annual Meeting 2017 (Tokyo Metropolitan University, Mar. 24--27, 2017)
- Spring Seminar in Algebraic Topology (Okayama University of Science, Mar. 29--30)
Any comments to my new paper "Winding numbers of regular closed curves on aspherical surfaces" will be welcomed. -- Feb.9, 2016
I may attend the following meetings and conferences in the academic year 2015/2016:
- RIMS Conference "New topics on transformation groups" (RIMSof Kyoto University, May 25--28, 2015)
- The 62nd Topology Symposium (Nagoya Inst. Tech. August 6 --9, 2015)
- Bousfield classes form a set: a workshop in memory of Tetsusuke Ohkawa (Nagoya University, August 28--30, 2015)
- Group actions and metric embeddings (Kyoto University, September 8--11, 2015)
- The 42nd Symposium on Transformation Groups (Kanazawa Kinrousha Plaza, November 26--28, 2015)
- Fukuoka Homotopy Theory Seminar (Fukuoka University Seminar House, Jan. 10--11, 2016)
- MSJ Annual Meeting 2016 (Tsukuba University, Mar. 16--19)
- Algebraic and Geometric Topology (Okayama University of Science, Mar. 25--26)

Old News

Mathematics

Research Papers, Talks, etc.
Lectures

Computers

Perl Scripts
JavaScript Games
TeX
Various Tips

Conferences / Meetings

Geometry and Topology (Münster) June '09
The 35th Symposium on Transformation Groups Nov. '08
Quinn Conference Nov. '06
MSJ meeting March '04
Heidelberg June '03
Exotic Homology Manifolds '03
ICM 2002 Beijing, pictures: 8/20, 8/21, 8/22, 8/23, 8/24, 8/25 [old version]
Transf. Gp. Symp. Chiba '00
Topology & Geometry '98
Surgery and Geometric Topology '96
A year in Scotland '90/'91

Hobbies / Entertainments

Snapshots
2014 Waving Figure by Kakuzo Tatehata
2012 The World of Ikuko Miyazaki / Gekidan-Hanafubuki at Koiwa Yuen Land, November / Gekidan-Hanafubuki at Shinkaichi Gekijou, July / Gekidan-Hanafubuki at Shikoku Kenkomura, June / Yotsuya Simon Doll Museum / 9th Inujuma-Jikan
2011 Gekidan-Hanafubuki at Shinkiachi Gekijou, December / Umeda Virtual Corridor, November / Gekidan-Hanafubuki at Shimizu Gekijou, November / Gekidan-Hanafubuki at Okayama 3-Chome Gekijou, August / Gekidan-Hanafubuki at Shinkiachi Gekijou, July / A short trip to Asuka / Gekidan-Hanafubuki at Bentenza, March
2010 Gekidan-Hanafubuki at Shinkaichi Gekijou, November / Gekidan-Hanafubuki at Hakata Shingekiza, September / Gekidan-Hanafubuki at 3-chome Gekijou, August / Gekidan-Hanafubuki at Kawagoe Yuyu Land, March
2009 Malls in Yonago / Arts in Sapporo / Gekidan-Hanahubuki at Shinkaichi-Gekijou, July / Kyobashi-Inujima Art Tour / Gekidan-Hanahubuki at Shioku Kenkoumura / Münster / Naoshima / Kurashiki-Takamatsu-Kojima / Kibiji / Shikoku-mura in Takamatsu / A trip to Osaka in April / A trip to Tokyo/Osaka in March / Tenjinyama Cultural Plaza [Ikuko Miyazaki Exhibition -- Dolls of Egon Schiele / Kishun, a theatrical performance in memory of Fumiko Tabuchi]/ Marugame Re-visited / Trip to Tottori Pref. / Graduation Exhibition of Meisei-Gakuin High School / Art Museums in Kagawa / Trip to Fukuoka and Osaka
2008 Christmas Decoration on Campus / A Non-contractible Tree / Gekidan-Hanahubuki at Shinkaichi Gekijou / Stop DV! / Okayama Pref. Art Museum / Gekidan-Hanahubuki at Shioku Kenkoumura / Dogeza-Matsuri in Niimi / Sentaro-Gekidan at Shinohara Engeijou / Gekidan-Hanahubuki at Shimizu Gekijou Part2/ A Visit to Kure / Gekidan-Hanahubuki at Shimizu Gekijou / A Visit to Shimonoseki / A Visit to Kanazawa / Kyo-chan's Autograph / Harunojou Goods / Ninkyo-Gaiden Genkainada / Dogs / Cats / Kara-Gumi at Namba, Osaka / Gekidan-Hanahubuki at Asahi Gekijou
2007 Gekidan-Hanahubuki at Shinkaichi Gekijou / Gekidan-Hanahubuki at Shimizu Gekijou / Igisu / Records / Analysis Situs / Gekidan-Hanahubuki / Trip to Osaka / Carp! / Uiro-uri
2006 Detroit Airport / Frankfurt Airport / Tower of Sun / Ultraman in Kinojo / My Trip to Osaka / "Kusunoki" planted by Mitsru Toyama
2005 Alexander's horned sphere / Quinn's Puzzle / Dazaihu
2004 Billiken / Sapporo / IOE2004 / Ranpo Edogawa's Gen-ei-jou / Warning / My favorites / Shibuya / Takasaki / Kawakado
Movies I Saw
Stages
My Favorite Books, ebooks
My Favorite Musics
Slide Puzzles