Sections
Left Column
Image
Image
machiang
Image Caption

CHIANG, Yik-Man
蔣翼邁

(PhD London)

Phone: (852) 2358 7441
Email: machiang@ust.hk
Office: Room 3457
Home Page
Right Column
Image
Image

Professor



Biography

Prof. Chiang attended several primary and secondary schools in Hong Kong before he received both his undergraduate (1984) and postgraduate (1991) qualification from University College London. His PhD was directed under the late Professor J. Milne Anderson on topics related to Schwarzian derivatives and linear differential equations. Although special functions are almost as old as calculus, many of the centuries old special functions that appear frequently in applications are still far from being understood. His current interests lie in application of Nevanlinna theory, algebraic and geometric methods to better understand these special functions.

Research Interests

Complex function theory; ordinary differential equations in the complex plane; orthogonal polynomials; difference equations

Selected Publications

  Article

  1. D-module approach to special functions and generating functions
    • Author(s): Cheng, Kam Hang; Chiang, Yik Man; Ching, Avery
    • Source: Mathematical Reports of the Academy of Science, v. 45, (1), March 2023, p. 1-12
    • Year: 2023

  2. D-module approach to Liouville's Theorem for difference operators
    • Author(s): Cheng, Kam Hang; Chiang, Yik Man; Ching, Avery
    • Source: New Zealand Journal of Mathematics, v. 53, October 2022, p. 63-79
    • Year: 2022

  3. Wiman–Valiron Theory for a Polynomial Series Based on the Askey–Wilson Operator
    • Author(s): Cheng, Kam Hang; Chiang, Yik Man
    • Source: Constructive Approximation, v. 54, (2), October 2021, p. 259-294
    • Year: 2021

  4. Resolving Singularities and Monodromy Reduction of Fuchsian Connections
    • Author(s): Chiang, Yik Man; Ching, Avery; Tsang, Chin-Yin
    • Source: Annales Henri Poincaré, v. 22, (9), September 2021, p. 3051-3094
    • Year: 2021

  5. Galoisian Approach to Complex Oscillation Theory of Some Hill Equations
    • Author(s): Chiang, Yik Man; Yu, Guo-fu
    • Source: Mathematica Scandinavica, v. 124, (1), January 2019, p. 102-131
    • Year: 2019

  6. Nevanlinna Theory of the Askey–wilson Divided Difference Operator
    • Author(s): Chiang, Yik Man; Feng, shaoji
    • Source: Advances in Mathematics, v. 329, April 2018, p. 217-272
    • Year: 2018

  7. Symmetry of the Darboux equation
    • Author(s): Chiang, Yik Man; Tsang, Chiu Yin; Ching, Avery
    • Source: Kumamoto Journal of Mathematics, v. 31, January 2018, p. 15-48
    • Year: 2018

  8. Nevanlinna Theory of the Wilson Divided-difference Operator
    • Author(s): Cheng, Kam Hang; Chiang, Yik Man
    • Source: Annales Academiae Scientiarum Fennicae Mathematica, v. 42, (1), 2017, p. 175-209
    • Year: 2017

  9. Difference Nevanlinna Theories With Vanishing and Infinite Periods
    • Author(s): Chiang, Yik Man; Luo, Xudan
    • Source: Michigan Mathematical Journal, v. 66, (3), August 2017, p. 451-480
    • Year: 2017

  10. On the Growth of Logarithmic Difference of Meromorphic Functions and a Wiman–Valiron Estimate
    • Author(s): Chiang, Yik Man; Feng, Shao-Ji
    • Source: Constructive Approximation, v. 44, (3), December 2016, p. 313-326
    • Year: 2016

  11. On complex oscillation, function-theoretic quantization of non-homogeneous periodic ordinary differential equations and special functions
    • Author(s): Chiang, Yik Man; Yu, Kit Wing
    • Source: Proceedings of the Royal Society of Edinburgh Section A: Mathematics, v. 142A, (3), June 2012, p. 449-477
    • Year: 2012

  12. Subnormal solutions of non-homogeneous periodic ODEs, special functions and related polynomials
    • Author(s): Chiang, Yik-Man; Yu, Kit-Wing
    • Source: Journal für die reine und angewandte Mathematik, v. 651, February 2011, p. 127-164
    • Year: 2011

  13. On the Growth of Logarithmic Differences, Difference Quotients and Logarithmic Derivatives of Meromorphic Functions
    • Author(s): Chiang, Yik-Man; Feng, Shao-Ji
    • Source: Transactions of the American Mathematical Society, v. 361, (7), July 2009, p. 3767-3791
    • Year: 2009

  14. On the Nevanlinna characteristic of f(z+η) and difference equations in the complex plane
    • Author(s): Chiang, Yik-Man; Feng, Shao-Ji
    • Source: Ramanujan Journal, v. 16, (1), May 2008, p. 105-129
    • Year: 2008

  15. On the Nevanlinna order of meromorphic solutions to linear analytic difference equations
    • Author(s): Chiang, YM; Ruijsenaars, Simon N.M.
    • Source: Studies in applied mathematics, v. 116, (3), April 2006, p. 257-287
    • Year: 2006

  16. On value distribution theory of second order periodic ODEs, special functions and orthogonal polynomials
    • Author(s): Chiang, Yik-Man; Ismail, Mourad E.H.
    • Source: Canadian Journal of Mathematics=Journal canadien de mathématiques, v. 58, (4), August 2006, p. 726-767
    • Year: 2006

  17. Difference independence of the Riemann zeta function
    • Author(s): Chiang, Yik-Man; Feng, Shao-Ji
    • Source: Acta Arithmetica, v. 125, (4), 2006, p. 317-329
    • Year: 2006

  18. Estimates on the growth of meromorphic solutions of linear differential equations
    • Author(s): Chiang, Yik Man; Hayman, Walter K.
    • Source: Commentarii mathematici Helvetici, v. 79, (3), September 2004, p. 451-470
    • Year: 2004

  19. On the meromorphic solutions of an equation of Hayman
    • Author(s): Chiang, Yik Man; Halburd, RG
    • Source: Journal of mathematical analysis and applications, v. 281, (2), May 2003, p. 663-677
    • Year: 2003

  20. Complex oscillation theory and special functions
    • Author(s): Chiang, Yik-Man; Ismail, Mourad E.H.
    • Source: Mathematical Reports of the Academy of Science of Canada, v. 24, (3), 2002, p. 117-123
    • Year: 2002

  21. On a problem in complex oscillation theory of periodic second order linear differential equations and some related perturbation results
    • Author(s): Chiang, Yik Man; Gao, SA
    • Source: Annales Academiae Scientiarum Fennicae Mathematica, v. 27, (2), 2002, p. 273-290
    • Year: 2002

  22. On the zero-free solutions of linear periodic differential equations in the complex plane
    • Author(s): Chiang, Yik Man
    • Source: Results in Mathematics, v. 38, (3-4), November 2000, p. 213-225
    • Year: 2000

  23. Some oscillation results for linear differential equations in the complex plane
    • Author(s): Chiang, Yik Man; Laine, Ilpo
    • Source: Japanese Journal of Mathematics, v. 24, (2), 1998, p. 367-402
    • Year: 1998

  24. Oscillation results of certain higher order linear differential equations with periodic coefficients in the complex plane
    • Author(s): Chiang, Yik Man; Wang, Shupei
    • Source: Journal of Mathematical Analysis and Applications, v. 215, (2), November 1997, p. 560-576
    • Year: 1997

  25. Oscillation results on y″ + Ay = 0 in the complex domain with transcendental entire coefficients which have extremal deficiencies
    • Author(s): Chiang, Yik Man
    • Source: Proceedings of the Edinburgh Mathematical Society, v. 38, (1), February 1995, p. 13-34
    • Year: 1995

  26. Oscillation results for some linear differential equations
    • Author(s): Chiang, Yik Man; Laine, I.; Wang, SP
    • Source: Mathematica Scandinavica, v. 77, (2), December 1995, p. 209-224
    • Year: 1995

  27. Some properties of analytic functions with small schwarzian
    • Author(s): Chiang, Yik Man
    • Source: Complex Variables Theory and Application, v. 25, 1994, p. 107-118
    • Year: 1994

  28. Some remarks on Lehto's domain constant
    • Author(s): Chiang, Yik Man
    • Source: Annales Academiae Scientiarum Fennicae. Series A I. Mathematica, v. 17, 1992, p. 285-293
    • Year: 1992

  Conference paper

  1. Galoisian Approach to Complex Oscillation Theory
    • Author(s): Chiang, Yik Man; Yu, Guofu
    • Year: 2016

  2. Galoisian Approach to Complex Oscillation of Hill's Eqauations
    • Author(s): Yu, Guofu; Chiang, Yik Man
    • Year: 2016

  3. Complex Oscillation Theory and Semi-finite Gap Problems
    • Author(s): Luo, Xudan; Chiang, Yik Man
    • Year: 2016

  4. A Galoisian Approach to Complex Oscillation Theory
    • Author(s): Chiang, Yik Man; Yu, Guofu
    • Year: 2016

  5. When Does a Formal Finite-difference Expansion Become Real?
    • Author(s): Feng, Shaoji; Chiang, Yik Man
    • Year: 2016

  6. Estimates on the growth of meromorphic solutions of linear differential equations with density conditions
    • Author(s): Chiang, Yik Man
    • Source: Reports and Studies in Forestry and Natural Sciences, v. 14, p. 45-55
    • Year: 2014

  7. Eigen-solutions of Biconfluent Heun equation with respect to a complex weight
    • Author(s): Chiang, Yik Man
    • Source: Colloquium on Jordan Theory and Analysis, 8-12 April 2010
    • Year: 2010

  8. A q-deformation of classical Nevanlinna theory
    • Author(s): Chiang, Yik Man
    • Source: International Conference on Complex Analysis and Related Topics, 20-23 August 2009, Beijing
    • Year: 2009

  9. A q-deformation of Nevanlinna Theory
    • Author(s): Chiang, Yik Man
    • Source: Conference on Value Distribution Theory and Complex Geometry, 27-30 July 2009
    • Year: 2009

  10. Malmquist-type theorems for second-order ODEs
    • Author(s): Chiang, Yik-Man
    • Source: International Conference on Nonlinear Waves: Theory and Applications, Beijing, China, organised by M. Ablowitz, D-Y. Hsieh and J. Yang, 9-12 June 2008
    • Year: 2008

  11. On The Nevanlinna Order Of Lommel And Struve Functions And Complex Differential Equations
    • Author(s): Chiang, Yik-Man
    • Source: The 9th International Conference on Special Functions, Orthogonal Polynomials and their Applications, Marseille, France, organized by G. Valent, 2-6 July 2007 (30 minutes talk)
    • Year: 2007

  12. On the Nevanlinna Order of Lommel, Struve Functions and Complex Differential Equations
    • Author(s): Chiang, Yik-Man
    • Source: 1st Joint Meeting of American and the Newzealand Mathematical Societies, Special session on Special Functions and Orthogonal Polynomials, Victoria Univ. of Wellington, organized by D. Dominici, O. Warnaar, S. Cooper, 12-15 December 2007 (25 minutes invited talk)
    • Year: 2007

  13. Structural results of orthogonal polynomials that generalize Lommel's polynomials
    • Author(s): Chiang, Yik-Man
    • Source: ICM06 satelite meeting: 'Recent Trends in Constructive Approximation Theory', Univ. Carlos III de Madrid
    • Year: 2006

  14. Estimates of difference operators in the complex plane
    • Author(s): Chiang, Yik-Man
    • Source: The Painleve Equations and Monodromy Problems: Recent Developments, Newton Institute, Cambridge September 2006
    • Year: 2006

  15. Some Nevanlinna-type estimates related to discrete equations
    • Author(s): Chiang, Yik-Man; Feng, S.J.
    • Source: International Conference on Nonlinear Waves, Integrable Systems, and their Applications, in honor of Mark Ablowitz's sixtieth birthday, University of Colorado Spring, , organized by M. Kruskal, T. Fokas, S. Chakravarty and R. Cascaval, 4--8th June 2005
    • Year: 2005

  16. On the growth of entire solutions to some difference equations
    • Author(s): Chiang, Yik-Man; Feng, S.J.
    • Source: Computational Methods and Function Theory 2005, University of Joensuu, Finland, organized by St. Ruscheweyh, E. B. Saff, O. Martio and I. Laine., 13--17th June 2005,
    • Year: 2005

  17. On The Location of Complex Zeros of Bessel Functions and Complex Oscillation Theory
    • Author(s): Chiang, Yik-Man; Ismail, Mourad E.M.
    • Source: American Mathematics Society, Joint Mathematics Meetings, Phoenix, AZ. Special Session in 'Value Distribution Theory in Classical and p-adic Function Theory', organized by A. Escassut, I. Laine and C. C. Yang., January 7-10
    • Year: 2004

  18. On Value Distribution Theory, Complex Oscillation of Differential Equations and Special Functions
    • Author(s): Chiang, Yik-Man
    • Source: Summer School in Complex Difference Equations, August, University of Joensuu (Mekrijarvi Research Station)
    • Year: 2001

  19. On Value Distribution Theory, Complex Oscillation of Differential Equations and Bessel polynomials
    • Author(s): Chiang, Yik-Man
    • Source: Summer School/Seminar in Applied Analysis, July, City University of Hong Kong
    • Year: 2001

  20. On the complex oscillation of y′′ + (ez − K)y = 0 and a result of Bank
    • Author(s): Chiang, Yik Man
    • Source: Proceedings of the Conference Computational Methods and Function Theory 1994 / Edited By: R.M. Ali, S. Ruscheweyh and E.B. Saff. World Scientific, 1995, p. 125-134, Ch. 10. Book series: Series in Approximations and Decompositions, v. 5
    • Year: 1995

  21. Efficient Software Multicast in Wormhole-Routed Unidirectional Multistage Networks
    • Author(s): Chiang, Chi-Ming; Ni, Lionel Ming-Shuan
    • Source: Proceedings of the Seventh IEEE Symposium on Parallel and Distributed Processing, Los Alamitos, CA : IEEE Computer Society Press, 1995, p. 106-113
    • Year: 1995