CURRICULUM VITAE 2017

Katsuhiko Matsuzaki

Birth: 1963 June 8 in Tokyo, Japan (Male)
Address: Department of Mathematics, School of Education, Waseda University, Nishi-Waseda
1-6-1, Shinjuku, Tokyo 169-8050, Japan.
Phone: +81 (3) 5286-1521; Fax: +81 (3) 5286-1308
E-mail: matsuzak(at)waseda.jp
Education:• D. Sc., March 1992, Kyoto University, Kyoto, Japan.
• M. Sc., March 1989, Kyoto University, Kyoto, Japan.
• B. Sc., March 1987, Kyoto University, Kyoto, Japan.
Thesis:Advisor: Professor Masahiko Taniguchi.
Field: Complex Analysis, Hyperbolic Geometry, Kleinian Groups, Teichmüller Spaces.
Title: Ergodic properties of discrete groups; inheritance to normal subgroups andinvariance under quasiconformal deformations.
Awards and grants:• JSPS, Grant-in-Aid for challenging Exploratory Research, April 2016-March 2019(#16K13767).
• JSPS, Grant-in-Aid for Scientific Research (B), April 2013-March 2018 (#25287021).
• Grant-in-Aid for JSPS Fellows (Host), October 2014-March 2015 (#14F04321).
• JSPS, Grant-in-Aid for challenging Exploratory Research, April 2012-March 2015(#24654035).
• JSPS, Grant-in-Aid for Scientific Research (B), April 2008-March 2013 (#20340030).
• JSPS, Grant-in-Aid for Exploratory Research, April 2008-March 2011 (#20654016).
• JSPS, Grant-in-Aid for Scientific Research (B), April 2004-March 2008 (#16340036).
• JSPS, Grant-in-Aid for Scientific Research (C), April 2002-March 2004 (#14540156).
• JSPS, Grant-in-Aid for Young Scientists (A), April 2000-March 2002 (#12740082).
• JSPS, Postdoctoral Fellowships for Research Abroad, Visiting scholar of the University of Michigan, October 1997-September 1999.
• The Ministry of Education, Grant-in-Aid for Scientific Research (C), April 1997September 1997 (#09640164).
• Mathematical Society of Japan, Takebe Prize, November 1996.
• The Ministry of Education, Grant-in-Aid for Young Scientists (A), April 1996-March
1997 (#08740090).

• JSPS and the Academy of Finland, Scientist Exchange Program, Visiting scholar ofHelsinki University, April 1995-September 1995.
• The Ministry of Education, Grant-in-Aid for Young Scientists (A), April 1994-March
1995 (#06854004).
• The Ministry of Education, Grant-in-Aid for Young Scientists (A), April 1993-March
1994 (#05740085).
Employment:• 1990 - 1995: Research Assistant, Department of Mathematics, Tokyo Institute ofTechnology.
• 1995 - 2005: Associate Professor and Professor (2005), Department of Mathematics,Ochanomizu University.
• 2006 - 2009: Professor, Department of Mathematics, Okayama University.
• 2008: Visiting Scholar, Department of Mathematics, Wesleyan University.
• 2010 - current: Professor, Department of Mathematics, School of Education, Waseda
University.
Publications:
Papers
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K. Matsuzaki, Certain estimates on Kleinian groups by the core of their quotient 3-manifold, KodaiMath. J. 13 (1990), 377–385.
K. Matsuzaki, A characterization of extended Schottky type groups with a remark to Ahlfors’ conjecture, J. Math. Kyoto Univ. 31 (1991), 259–264.
J. A. Velling and K. Matsuzaki, The action at infinity of conservative groups of hyperbolic motions
need not have atoms, Ergod. Th. & Dynam. Sys. 11 (1991), 577–582.
K. Matsuzaki, Geometric finiteness, quasiconformal stability and surjectivity of the Bers map for
Kleinian groups, Tohoku Math. J. 43 (1991), 327–336.
K. Matsuzaki, Ergodic properties of discrete groups; inheritance to normal subgroups and invarianceunder quasiconformal deformations, J. Math. Kyoto Univ. 33 (1993), 205–226.
K. Matsuzaki, Simply connected invariant domains of Kleinian groups not in the closures of Teichmüller spaces, Complex Variables 22 (1993), 93–100.
K. Matsuzaki and J. A. Velling, Notes on projective structures and Kleinian groups, Osaka J. Math.
31 (1994), 165–175.
K. Matsuzaki, The conservative-dissipative dichotomy for geometric covers of Riemann surfaces, Rev.
Roumaine Math. Pures Appl. 40 (1995), 77–80.
K. Matsuzaki, Teichmüller spaces with variable bases in the universal Teichmüller space, Ann. Acad.
Sci. Fenn. 20 (1995), 27–36.
K. Matsuzaki, Projective structures inducing covering maps, Duke Math. J. 78 (1995), 413–425.
K. Matsuzaki, Bounded and integrable quadratic diﬀerentials : hyperbolic and extremal lengths on
Riemann surfaces, Geometric Complex Analysis (J. Noguchi et al., eds.), World Scientific, 1996,
pp. 443–450.
K. Matsuzaki and H. Shiga, Conformal conjugation of Fuchsian groups from the first kind to thesecond kind, J. reine angew. Math. 476 (1996), 191–200.
K. Matsuzaki, The Petersson series for short geodesics, Proceedings of the XVI Rolf Nevanlinna
Colloquium (I. Laine and O. Martio, eds.), Walter de Gruyter, 1996, pp. 143–150.
K. Matsuzaki, Structural stability of Kleinian groups, Michigan Math. J. 44 (1997), 21–36.
K. Matsuzaki, Conditional stability of Kleinian groups, Sci. Bull. Josai Univ. 4 (1998), 25–28.
K. Matsuzaki, The isomorphism theorem of Kleinian groups, Analysis and Topology (A. Cazacu, O.
Lehto and T. Rassias, eds.), World Scientific, 1998, pp. 507–513.

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K. Matsuzaki, Dynamics of Kleinian groups — the Hausdorﬀ dimesion of limit sets, Sugaku (1999),
no. 2, 142–160 (Japanese);K. Nomizu (ed.), Selected papers on classical analysis, AMS Translations(2), vol. 204, American Mathematical Society, 2001, pp. 23–44.
K. Matsuzaki, The Hausdorﬀ dimension of the limit sets of infinitely generated Kleinian groups, Math.
Proc. Cambridge Philos. Soc. 128 (2000), 123–139.
K. Matsuzaki, Convergence of the Hausdorﬀ dimension for algebraically convergent sequences ofKleinian groups, In the tradition of Ahlfors and Bers (I. Kra and B. Maskit, eds.), ContemporaryMath., vol. 256, American Mathematical Society, 2000, pp. 243–254.
K. Matsuzaki, Simply connected domains on a hyperbolic surface, New Zealand J. Math. 31 (2002),
159–164.
K. Matsuzaki, Conservative action of Kleinian groups with respect to the Patterson-Sullivan measure,Comput. Methods Funct. Theory 2 (2002), 469–479.
K. Matsuzaki, The infinite direct product of Dehn twists acting on infinite dimensional Teichmüllerspaces, Kodai Math. J. 26 (2003), 279–287.
K. Matsuzaki, Inclusion relations between the Bers embeddings of Teichmüller spaces, Israel J. Math.
140 (2004), 113–124.
K. Matsuzaki, Indecomposable continua and the limit sets of Kleinian groups, In the tradition ofAhlfors and Bers, III (W. Abikoﬀ and A. Haas, eds.), Contemporary Math., vol. 355, American
Mathematical Society, 2004, pp. 321-332.
K. Matsuzaki, Isoperimetric constants for conservative Fuchsian groups, Kodai Math. J. 28 (2005),292–300.
K. Matsuzaki, A countable Teichmüller modular group, Trans. Amer. Math. Soc. 357 (2005), 3119–3131.
E. Fujikawa and K. Matsuzaki, Recurrent and periodic points for isometries of L∞ spaces, Indiana
Univ. Math. J. 55 (2006), 975–997.
K. Matsuzaki, The interior of discrete projective structures in the Bers fiber, Ann. Acad. Sci. Fenn.
32 (2007), 3–12.
E. Fujikawa and K. Matsuzaki, Non-stationary and discontinuous quasiconformal mapping classgroups, Osaka J. Math. 44 (2007), 173–185.
K. Matsuzaki, A quasiconformal mapping class group acting trivially on the asymptotic Teichmüllerspace, Proc. Amer. Math. Soc. 135 (2007), 2573–2579.
K. Matsuzaki, A classification of the modular transformations of infinite dimensional Teichmüllerspaces, In the tradition of Ahlfors and Bers, IV (R. Canary et al., eds.), Contemporary Math., vol. 432,
American Mathematical Society, 2007, pp. 167–178.
K. Matsuzaki, Quasiconformal mapping class groups having common fixed points on the asymptoticTeichmüller spaces, J. d’Analyse Math. 102 (2007), 1–28.
E. Fujikawa, K. Matsuzaki and M. Taniguchi, Dynamics on Teichmüller spaces and holomorphic selfcovering of Riemann surfaces, Math. Zeitschrift 260 (2008), 865–888.
E. Fujikawa and K. Matsuzaki, Elliptic quasiconformal mapping classes acting on asymptotic Teichmüller spaces, Complex Analysis and its Applications (Y. Imayoshi et al., eds.), OCAMI Studies,vol. 2, Osaka Municipal Univ. Press, 2008, pp. 169–173.
K. Matsuzaki and Y. Yabuki, Invariance of the Nayatani metrics for Kleinian manifolds, Geom.
Dedicata 135 (2008), 147–155.
K. Matsuzaki, On quasiconformal invariance of convergence and divergence types for Fuchsian groups,
Illinois J. Math. 53 (2009), 1249-1258.
K. Matsuzaki and Y. Yabuki, The Patterson-Sullivan measure and proper conjugation for Kleiniangroups of divergence type, Ergodic Theory Dynam. Systems 29 (2009), 657–665.
K. Matsuzaki and Y. Yabuki, An example of self-covering of Riemann surface, Proceedings of the
16th ICFIDCAA (J. Choi et al., eds.), Dongguk Univ., Daeyang Printing, 2009, pp. 184–188.
K. Matsuzaki, The action of elliptic modular transformations on asymptotic Teichmüller spaces, Teichmüller Theory and Moduli Problem (I. Biswas, R. S. Kulkarni and S. Mitra, eds.), Ramanujan Math.
Soc. Lecture Notes Series, vol. 10, 2010, pp. 481–488.
K. Matsuzaki, Symmetric groups that are not the symmetric conjugates of Fuchsian groups, In thetradition of Ahlfors and Bers, V (M. Bonk et al., eds.), Contemporary Math., vol. 510, American
Mathematical Society, 2010, pp. 239–247.

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E. Fujikawa, K. Matsuzaki and M. Taniguchi, Structure theorem for holomorphic self-covers andits applications, Infinite dimensional Teichmüller space and moduli space (E. Fujikawa, ed.), RIMS
Kokyuroku Bessatsu, vol. B17, Research Institute of Mathematical Sciences, Kyoto Univ., 2010, pp. 21–
36.
K. Matsuzaki, An averaging operator and non-separability of certain Banach spaces of holomorphicautomorphic forms, Infinite dimensional Teichmüller space and moduli space (E. Fujikawa, ed.), RIMS
Kokyuroku Bessatsu, vol. B17, Research Institute of Mathematical Sciences, Kyoto Univ., 2010, pp. 65–
72.
K. Matsuzaki, Properties of asymptotically elliptic modular transformations of Teichmüller spaces, Infinite dimensional Teichmüller space and moduli space (E. Fujikawa, ed.), RIMS Kokyuroku Bessatsu,
vol. B17, Research Institute of Mathematical Sciences, Kyoto Univ., 2010, pp. 73–84.
K. Falk, K. Matsuzaki and B. O. Stratmann, Checking atomicity of conformal ending measures for
Kleinian groups, Conform. Geom. Dyn. 14 (2010), 167–183.
K. Matsuzaki and J. M. Rodrı́guez, Twists and Gromov hyperbolicity of Riemann surfaces, Acta Math.
Sin. (Engl. Ser.) 27 (2011), 29–44.
E. Fujikawa and K. Matsuzaki, Stable quasiconformal mapping class groups and asymptotic Teichmüller spaces, Amer. J. Math. 133 (2011), 637–675.
K. Matsuzaki, Polycyclic quasiconformal mapping class subgroups, Pacific J. Math. 251 (2011), 361–
374.
P. Bonfert-Taylor, K. Matsuzaki and E. Taylor, Large and small covers of a hyperbolic manifold, J.
Geom. Anal. 22 (2012), 455–470.
K. Matsuzaki, The Petersson series vanishes at infinity, Quasiconformal mappings, Riemann surfaces, and Teichmüller spaces (Y. Jiang and S. Mitra, eds.), Contemporary Math., vol. 575, American
Mathematical Society, 2012, pp. 299–311.
E. Fujikawa and K. Matsuzaki, The Nielsen realization problem for asymptotic Teichmüller modulargroups, Trans. Amer. Math. Soc. 365 (2013), 3309–3327.
E. Fujikawa and K. Matsuzaki, Non-divergent infinitely discrete Teichmüller modular transformation,
Topics in finite or infinite dimensional complex analysis (K. Matsuzaki and T. Sugawa, eds.), Tohoku
Univ. Press, 2013, pp. 97–102.
K. Matsuzaki and Y. Yabuki, No proper conjugation for quasiconvex cocompact groups of Gromovhyperbolic spaces, In the tradition of Ahlfors-Bers. VI (U. Hamenstädt et al., eds.), ContemporaryMath., vol. 590, American Mathematical Society, 2013, pp. 125–136.
K. Matsuzaki, An estimate of the maximal dilatations of quasiconformal automorphisms of annuli,
Complex Var. Elliptic Equ. 58 (2013), 923–932.
K. Matsuzaki, Certain integrability of quasisymmetric automorphisms of the circle, Comput. Methods
Funct. Theory 14 (2014), 487–503.
K. Matsuzaki, Infinite-dimensional Teichmüller spaces and modular groups, Handbook of Teichmüller
theory. Vol. IV (A. Papadopoulos, ed.), IRMA Lect. Math. Theor. Phys., vol. 19, Eur. Math. Soc.,
2014, pp. 681–716.
K. Falk and K. Matsuzaki, The critical exponent, the Hausdorﬀ dimension of the limit set and theconvex core entropy of a Kleinian group, Conform. Geom. Dyn. 19 (2015), 159–196.
K. Matsuzaki, The universal Teichmüller space and diﬀeomorphisms of the circle with Hölder continuous derivatives, Handbook of group actions. Vol. I (L. Ji, A. Papadopoulos and S. T. Yau, eds.),
Adv. Lect. Math., vol. 31, Int. Press, 2015, pp. 333–372.
K. Matsuzaki, Uniform convexity, normal structure and the fixed point property of metric spaces,Topology Appl. 196 (2015), 684–695.
K. Matsuzaki, The Chabauty and the Thurston topologies on the hyperspace of closed subsets, J. Math.
Soc. Japan 69 (2017), 263–292.
K. Matsuzaki and M. Yanagishita, Asymptotic conformality of the barycentric extension of quasiconformal maps, Filomat 31 (2017), 85–90.
K. Matsuzaki, The hyperbolic metric on the complement of the integer lattice points in the plane, NewTrends in Analysis and Interdisciplinary Applications (P. Dang et. al., eds.), Trends in Mathematics,Birkhäuser, 2017, pp. 247–252.
K. Matsuzaki and J. M. Rodrı́guez, Planar Riemann surfaces with uniformly distributed cusps: parabolicity and hyperbolicity, Math. Nachr. 290 (2017), 1097–1112.

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J. Jaerisch and K. Matsuzaki, Growth and cogrowth of normal subgroups of a free group, Proc. Amer.
Math. Soc. 145 (2017), 4141–4149.
K. Matsuzaki, The Teichmüller space of group invariant symmetric structures on the circle, Ann.
Acad. Sci. Fenn. Math. 42 (2017), 535–550.
K. Matsuzaki, Continuity of the barycentric extension of circle diﬀeomorphisms with Hölder continuous derivative, Trans. London Math. Soc. 4 (2017), 129–147.
K. Matsuzaki, Circle diﬀeomorphisms, rigidity of symmetric conjugation and aﬃne foliation of theuniversal Teichmüller space, Geometry, Dynamics, and Foliations 2013 (T. Asuke et. al., eds.), Advanced Studies in Pure Mathematics 72, Mathematical Society of Japan, 2017, pp. 145–180.
K. Matsuzaki, Growth and cogrowth tightness of Kleinian and hyperbolic groups, Geometry and Analysis of Discrete Groups and Hyperbolic Spaces (M. Fujii et. al., eds.), RIMS Kokyuroku Bessatsu B66,
Research Institute of Mathematical Sciences, 2017, pp. 21–36.

Books
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K. Matsuzaki and M. Taniguchi, Hyperbolic Manifolds and Kleinian Groups, Oxford Univ. Press, 1998.