My research papers are listed below.
My collaborators: I write down their names as a recognition of my gratitude. Thanks so much for the happy time we spent together and the many things you have taught me over the years.

Fidaa Abed, Antonios Antoniadis, Chrisil Arackaparambil, Umang Bhaskar, Sayan Bhattacharya, Vibhor Bhatt, Amit Chakrabarti, Florin Constantin, José Correa, Ágnes Cseh, Lisa Fleischer, Danny Hermelin, Martin Hoefer, Darrell Hoy, Kazuo Iwama, Naonori Kakimura, Naoyuki Kamiyama, Ming-Yang Kao, Telikepalli Kavitha, Stephan Kratsch, Xiang-Yang Li, Kurt Mehlhorn, Shuichi Miyazaki, Danupon Nanongkai, Meghana Nasre, Dimitris Michail, Sebastian Ott, David Parkes, Malvika Rao, Thatchaphol Saranurak, Zoya Svitkina, Yih-Kuen Tsay, José Verschae, Lisa Wagner, Magnus Wahlström, Hiroki Yanagisawa, Yuichi Yoshida.