Hiroshi Yanagihara (柳原 宏)

Department of Applied Science
Faculty of Engineering
Yamaguchi University

Wake not a sleeping lion.

in Japanese

Hiroshi Yanagihara
Department of Applied Science
Faculty of Engineering, Yamaguchi University
Tokiwadai Ube, 755-8611 Japan

hiroshi@yamaguchi-u.ac.jp

Research

• Complex Analysis
  - Bloch and Landau constants
  - Geometric Function Theory
  - Analysis on Universal covering maps

• Stochastic Process
  - Conformal maritingale
  - Diffusion Processes on Riemann Surfaces

Publications

• [1] H. Yanagihara,
  A Tauberian theorem for a certain class of meromorphic functions,
  Kodai Math. J. 7(1984), 238-247.

• [2] H. Yanagihara,
  Brownian motions on Riemann surfaces of inverse functions,
  Function spaces on Riemann surfaces, Proc. Symp., Kyoto 1985,
  RIMS Kokyuroku 571(1985), 11-15.

• [3] H. Yanagihara,
  Stochastic determination of moduli of annular regions and tori,
  Ann. Probability, 14(1986), 1404-1410.

• [4] H. Yanagihara,
  Quasi-conformal variations and local minimality of the Ahlfors-Grunsky function,
  J. Anal. Math. 51(1988), 30-61.

• [5] H. Yanagihara,
  Extremal functions for Boch constants,
  Kodai Math. J. 11(1988), 44-46.

• [6] H. Yanagihara,
  Variational formula of inverse of quasiconformal mappings,
  Complex Variables, Theory Appl. 17(1991), 73-78.

• [7] H. Yanagihara,
  An integral inequality for derivatives of equimeasurable rearrangements,
  J. Math. Anal. Appl. 175(1993), 448-457.

• [8] H. Yanagihara,
  Sharp distortion estimate for locally schlicht Bloch functions.
  Bull. Lond. Math. Soc. 26(1994), 539-542.

• [9] H. Yanagihara,
  On the locally univalent Bloch constant.
  J. Anal. Math. 65(1995), 1-17.

• [10] M. Bonk, D. Minda, and H. Yanagihara,
  The hyperbolic metric on Bloch regions,
  Ali, Rosihan M. (ed.) et al.,
  Computational methods and function theory 1994.
  Proceedings of the conference, Penang, Malaysia, March 21--25, 1994.
  Singapore: World Scientific. Ser. Approx. Decompos. 5(1995), 89-100.

• [11] M. Bonk, D. Minda, and H. Yanagihara,
  Distortion theorems for locally univalent Bloch functions,
  J. Anal. Math. 69(1996), 73-95.

• [12] M. Bonk, D. Minda, and H. Yanagihara,
  Distortion theorems for Bloch functions,
  Pac. J. Math. 179(1997), 241-262.

• [13] H. Yanagihara,
  On the growth of Bloch functions,
  Complex Variables, Theory Appl. 44(2001), 103-115.

• [14] H. Yanagihara,
  Regions of variablity for functions of bounded derivatives,
  Kodai Math. J. 28 (2005), 452--462.

• [15] H. Yanagihara,
  Theory of conformal mappings, Vol. I (Japanese)
  [Kyoritsu Publ. Co., Tokyo, 1944], Vol. II [ibid., 1949] by Yuaku Komatu.
  Sci. Math. Jpn. 62 (2005), no. 2, 189--193. 30-03.

• [16] H. Yanagihara,
  Regions of variablity of convex functions,
  Math. Nachr. 279 (2006), 1723--1730.

• [17] S. Ponnusamy, A. Vasudevarao, H. Yanagihara,
  Region of variability for close-to-convex functions,
  Complex Variables and Elliptic Equations, 53(2008), 709-716.

• [18] S. Ponnusamy, A. Vasudevarao, H. Yanagihara,
  Region of variability of univalent functions $f(z)$ for which $zf'(z)$ is spirallike,
  Houston Journal of Mathematics, 34(2008), 1037-1048.

• [19] S. Ponnusamy, A. Vasudevarao, H. Yanagihara,
  Region of variability for close-to-convex functions-II,
  Applied Mathematics of Computation, 215(2009), 901-915.

• [20] T. Terada and H. Yanagihara,
  Sharp distortion estimates for $p$-Bloch functions,
  Hiroshima Mathematical J., 40(2010), 17-36.

• [21] H. Yanagihara,
  Variability Regions for Families of Convex Functions,
  Computational Methods and Function Theory, 10(2010), 291-302.

• [22] S. Ponnusamy, H. Yamamoto and H. Yanagihara,
  Variability regions for certain families of harmonic univalent mappings,
  Complex Variables and Elliptic Equations
  57 2011, 1-12.

• [23] R. Ohno and H. Yanagihara,
  On a coefficient body for Concave function,
  Computational Methods and Function Theory, 2013 (13), 237-251.

• [24] A. Vasudevarao and H. Yanagihara,
  On the growth of analytic functions in class ${\mathcal U(\lambda )$,

  Computational Methods and Function Theory 2013 (13), 237-251.

• [25] S. Ponnusamy, S. K. Sahoo and H. Yanagihara,
  Radius of convexity of partial sums of functions in the close-to-convex family,
  Nonlinear Analysis 95 (2014) 219-228.

• [26] M. Okada, S. Ponnusamy, A. Vasudevarao and H. Yanagihara,
  Circular Symmetrization, Subordination and Arclength problems on Convex Functions,
  Online Publication, Math. Nach. 2015.