&size(24){Yutaka ISHII (石井 豊)}; ~ #ref(Daguerre.JPG) ~ &size(12){(Caf'e Daguerre at Paris, March 2011)}; ~ My new webpage: https://sites.google.com/site/webpageyutakaishii/ Associate Professor ~ Department of Mathematics, Kyushu University ~ Motooka, Fukuoka 819-0395, Japan ~ Email: yutaka_at_math_dot_kyushu-u_dot_ac_dot_jp Number of visitors to this webpage: &counter; #contents #br *Curriculum Vitae [#m189ebc5] Name: Yutaka Ishii ~ Date of birth: March 4, 1970 ~ Place of birth: Yokohama, Japan ~ Civil status: married, two children ~ Nationality: Japanese ~ Languages: Japanese > English > French ~ **Academic degrees [#f1b2ef12] - Eiko High School, graduated in March 1988. ~ - B. Sc., "mainly in mathematics'', Kyoto University, March 1992. ~ - M. Sc., mathematics, Kyoto University, March 1994. ~ - Ph. D., mathematical sciences, University of Tokyo, March 1998. ~ Title of the thesis: A kneading theory for Lozi mappings. ~ Advisor: Professor Mitsuhiro Shishikura (currently at Kyoto University) **Positions held [#q3e2adc2] - JSPS research fellow (DC1), University of Tokyo, April 1994 - March 1997. - Research associate, Department of Mathematics, Kyushu University, January 1998 - August 2003. ~ - Maitre de conf'erence (mois d'invit'e), Universit'e Paris-Sud (Orsay), France, March 2002 - April 2002. ~ - Associate professor, Department of Mathematics, Kyushu University, September 2003 - to date. ~ - Professeur invit'e, Universit'e de Rennes, France, May 2006. ~ **Lecture series [#f6e3cf6e] - "Data storage and symbolic dynamics'', at Tokushima University (2002) - "Dynamics of complex H'enon maps'', at Tokyo Institute of Technology (2005). - "Dynamics of complex H'enon maps'', at Hokkaido University (2005). - "Data storage and symbolic dynamics'', at Kyoto University (2008). **Research visits (long term and invited) [#d3dd2ff3] - Universit'e Paris-Sud (Orsay), France, July 1994 - August 1996. - IMS, SUNY at Stony Brook, USA, November 1997 - December 1997. - Cornell University, USA, October 1999 - September 2000. - Universit'e Paris-Sud (Orsay), France, March 2001. - Cornell University, USA, September 2001. - Universit'e Paris-Sud (Orsay), France, March 2002 - April 2002. - RIMS, Kyoto University, Japan, September 2003 - December 2003. - Institut Henri Poincar'e, France, January 2004 - February 2004. - Scuola Normale Superiore di Pisa, Italy, November 2005. - Universit'e de Rennes, France, May 2006. - Ecole Polytechnique, France, March 2010 - March 2011. ** Visitors [#o40df13e] - Vincent Naudot (Kyoto University, Japan), 1998. - Duncan Sands (State University of New York at Stony Brook, USA), July 1998. - John H. Hubbard (Cornell University, USA and Universit'e de Provence, France), May 2001. - Charles Favre (CNRS and Universit'e de Paris VII, France), July 2003. - Pieter Collins (CWI, The Netherlands), February 2005. - Yi-Chiuan Chen (Academia Sinica, Taiwan), November - December 2006. - Anton Zorich (Universit'e de Rennes, France), May 2008. - David Burguet (Ecole Normale Superieure Cachan, France), September 2011. - Yi-Chiuan Chen (Academia Sinica, Taiwan), October 2011. - Volodymyr Nekrashevych (Texas A&M University, USA), January 2012. **Research areas [#df4c13bd] Dynamical systems (in particular, low-dimensional dynamics, symbolic dynamics, and complex dynamics). ~ Key words are; Lozi map, kneading theory, pruning front, lap number entropy formula, monotonicity of entropy, boundary of chaos, real and complex H'enon map, Julia set, hyperbolicity, Hubbard tree, horseshoe locus. #br *Publications and Preprints [#t830a1d2] **H'enon maps, polynomial diffeomorphisms of C^2 [#ma01ac09] - Hyperbolic polynomial diffeomorphisms of C^2. I: A non-planar map. ~ Adv. Math. 218, no. 2, pp. 417-464 (2008). - Hyperbolic polynomial diffeomorphisms of C^2. II: Hubbard trees. ~ Adv. Math. 220, no. 4, pp. 985-1022 (2009). ~ Corrigendum: Adv. Math. 226, no. 4, pp. 3850-3855 (2011). - Homotopy shadowing. (with J. Smillie) ~ Amer. J. Math. 132, no. 4, pp. 987-1029 (2010). - Hyperbolic polynomial diffeomorphisms of C^2. III: Iterated monodromy groups. ~ Preprint (2011). - On the parameter loci of the H'enon family. (with Z. Arai) ~ In preparation (2012). **Lozi maps, piecewise affine/projective maps [#l4929a55] - Towards a kneading theory for Lozi mappings I: A solution of the pruning front conjecture and the first tangency problem. ~ Nonlinearity 10, no. 3, pp. 731-747 (1997). ~ See also the comments on this article. - Towards a kneading theory for Lozi mappings II: Monotonicity of the topological entropy and Hausdorff dimension of attractors. ~ Commun. Math. Phys. 190, no. 2, pp. 375-394 (1997). - Monotonicity of the Lozi family near the tent-maps. (with D. Sands) ~ Commun. Math. Phys. 198, no. 2, pp. 397-406 (1998). - Lap number entropy formula for piecewise affine and projective maps in several dimensions. (with D. Sands) ~ Nonlinearity 20, no. 12, 2755-2772 (2007). ~ Corrigendum: Nonlinearity 21, no. 6, pp. 1411-1411 (2008). - On some conjectures concerning the entropy of Lozi maps. (with D. Sands) ~ In preparation (2012). **Physics-related papers and others [#je3ccdd9] - Quantum tunneling phenomena and complex dynamics. ~ Unpublished manuscript (1999). - Julia set describes quantum tunnelling in the presence of chaos. (with A. Shudo and K. S. Ikeda) ~ J. Phys. A: Math. Gen. 35, no. 17, L225-L231 (2002). - Note on a paper by Kawasaki and Sasa on Bernoulli coupled map lattices. ~ J. Phys. A: Math. Gen. 39, no. 45, 14043-14046 (2006). - Chaos attracts tunneling trajectories: A universal mechanism of chaotic tunneling. (with A. Shudo and K. S. Ikeda) ~ Europhys. Lett. 81, no. 5, 50003 (2008). - Julia sets and chaotic tunneling I. (with A. Shudo and K. S. Ikeda) ~ J. Phys. A: Math. Theor. 42, article number 265101 (26pp), (2009). - Julia sets and chaotic tunneling II. (with A. Shudo and K. S. Ikeda) ~ J. Phys. A: Math. Theor. 42, article number 265102 (34pp), (2009). **Lecture notes etc [#d69523fa] - On some results of Bedford and Smillie concerning the complex dynamics of C^2. (in Japanese) ~ Kyoto University RIMS Kokyuroku, No. 1042, pp. 193-220 (1998). - Physical phenomena and complex dynamics. (in Japanese) ~ Suuri Kagaku (2002). - Dynamics of the complex H'enon maps and the first tangency problem (after Bedford and Smillie). ~ Notes for lectures at Ryukoku University (2002). - Discrete integrable systems and discrete dynamical systems. (in Japanese) ~ Suuri Kagaku (2003). - Describing the Julia sets by group actions. (in Japanese) ~ Notes for a lecture in an annual meeting of the Mathematical Society of Japan (2008). - Review of a paper by Sarah Koch. ~ A document for Mathematical Reviews (2011). **Books [#u6ca74d7] - Japanese translation of "An Introduction to Chaotic Dynamical Systems" by R. Devaney (with H. Kokubu, M. Kisaka and S. Nii). ~ Kyoritsu Publisher. #br *Travel Plans [#v29e1f1e] **2013 [#d5b65d46] - Project workshop, June 10 - 14, RIMS at Kyoto University, Kyoto, Japan ~ - Pacific Rim Conference on Mathematics 2013, July 1 - 5, Hokkaido University, Sapporo, Japan ~ - Dynamics, Entropy and Semialgebraic Sets, July 8 - 12, RIMS at Kyoto University, Kyoto, Japan ~ **2012 [#h9cc3e60] - Integrated Research on Complex Dynamics, January 23 - 25, RIMS at Kyoto University, Kyoto, Japan ~ - Research visit, March 4 - 9, University of Tokyo, Tokyo, Japan ~ - Recent Progress in Lagrangian & Hamiltonian Dynamics, June 3 - 11, Ecole Normale Superi'eure de Lyon, Lyon, France ~ - Research visit, August 20 - 25, Hokkaido University, Sapporo, Japan ~ - Dynamics School on differential Galois theory, September 14 - 17, Kyushu Seminar House, Kuju, Japan ~ - Annual meeting of the Mathematical Society of Japan, September 18 - 21, Kyushu University, Fukuoka, Japan ~ - Research visit, September 25, Integrated Research Center of Kobe University, Kobe, Japan ~ - Informal seminar: Dynamics and Geometry, November 25 - December 2, Harvard University, Boston, USA ~ - Workshop on Holomorphic Vector Fields and Foliations, December 7 - 9, Ryukoku University Seminar House, Kyoto, Japan ~ - New Progress in Complex Dynamical Systems, December 10 - 14, RIMS at Kyoto University, Kyoto, Japan ~ **2011 [#t3746d36] - S'eminaire de Th'eorie Ergodique, January 9 - 11, Universit'e de Rennes, Rennes, France ~ - Ergodic Theory and Dynamical Systems Seminar, January 24 - 25, Warwick University, Coventry, UK ~ - S'eminaire de Th'eorie Ergodique, February 1, Universit'e de Paris VI (Jussieu), Paris, France ~ - Seminario di Sistemi Dinamici Olomorfi, February 9 - 11, Scuola Normale Superiore, Pisa, Italy ~ - SIAM Conference on Applications of Dynamical Systems, May 21 - 26, Snowbird Ski and Summer Resort, Snowbird, USA ~ - Kyoto Symposium on Complex Analysis in Several Variables XIV, July 18 - 21, Kyoto University, Kyoto, Japan ~ - G"ottingen-Penn State International Summer School, August 7 - 14, Georg-August-Universit"at G"ottingen, G"ottingen, Germany ~ - Summer School on Entropy Structure, September 19 - 23, Kyoto University, Kyoto, Japan ~ - Symposium on Complex Analysis, October 8 - 10, Chiba University, Chiba, Japan ~ - Frontiers in Dynamical Systems and Topology, November 21 - 25, RIMS at Kyoto University, Kyoto, Japan ~ - Automorphisms of Algebraic Varieties, December 19 - 23, Hotel Laforet, Shirahama, Japan ~ **2010 [#u28fca06] - Dynamics Seminar, January 29 - 30, Kyoto University, Kyoto, Japan ~ - Alg'ebre Dynamique et Topologie, June 13 - 15, Universit'e de Provence, Marseille, France ~ - Research visit, August 24 - 26, Georg-August-Universit"at G"ottingen, G"ottingen, Germany ~ - S'eminaire COOL, October 22, Institut Henri Poincar'e, Paris, France ~ - S'eminaire de Syst`emes Dynamiques, October 29, Universit'e de Paris VI & VII (Chevaleret), Paris, France ~ - S'eminaire de G'eom'etrie Ergodique, November 8, Ecole Polytechnique, Palaiseau, France ~ - Groupe de travail, November 15, Universit'e Paris-Sud (Orsay), Orsay, France ~