ZHUAN (JOHN) YE Department of Mathematics, NIU Professor and Director of Undergraduate Studies   Ph.D. Purdue University, West Lafayette, IN, USA, 1992     Office: Watson Hall 338 Office Hours(Spring): MW930am-noon, 1pm-4pm; T1030am-noon, 1pm-3pm; By Appointment. Office Hours(Fall): MWF930am-noon, 1pm-4pm; T1030am-noon, 1pm-3pm; By Appointment Office Phone: 815-753-6739 Email (For Students): dougs@math.niu.edu Email: ye@math.niu.edu

Research Interests

Nevanlinna theory of one and several complex variables, complex differetial equations and iteration theory

Selected Publications

1. (with L. Liao) A class of second order differential equations; Israel J. of Math., vol 146, (2005), 281-303
2. An analogue of continued fractions in number theory for Nevanlinna theory; Trans. of the Amer. Math. Soc., vol 356, no. 12, (2004), 4829-4838
3. (with W. Cherry) Nevanlinna's theory of value distribution; Monographs in Math (book), Springer-Verlag, Berlin, Heidelberg, New York, 2001
4. (with L. R. Sons) The best error terms of classical functions; Complex Variables, v. 28, (1995) 55-66
5. On Nevanlinna's second main theorem in projective space; Invent. Math., vol. 122 (1995) 475-507
6. Structural instability of exponential functions; Trans. of the Amer. Math. Soc., vol 344 July (1994), 379-389
7. On Nevanlinna's Error Terms; Duke Math. J., v.64 Nov. (1991), 243-260