Chak-On Chow's Home Page

Chak-On Chow

I am an assistant professor at the Department of Mathematics and Information Technology, Hong Kong Institute of Education (HKIEd). Before the current appointment, I had held Postdoctoral Fellowships at the Department of Mathematics, Hong Kong Baptist University and the Institute of Mathematics, Academia Sinica, Taipei.
I received my Ph.D. in Mathematics from the Massachusetts Institute of Technology (MIT), Cambridge, Massachusetts, USA, in June, 2001. (See a picture of MIT commencement.) I wrote my doctoral thesis under the direction of Professor Ira Gessel of the Department of Mathematics, Brandeis University, Waltham, Massachusetts. [See a picture of Ira and me taken during FPSAC’01, held at the Arizona State University, Tempe, AZ (Photo courtesy of Mark Skandera), and a picture of David Vogan (Head of MIT Math Dept) and me taken during the commencement in 2001.]
Before admitted to MIT, I studied at the Hong Kong University of Science and Technology (HKUST) from which I earned my B.Sc. in Mathematics. [See a picture of mine taken during which time I was pending my Bachelor degree to be conferred by The Right Honourable (the Lord) Christopher Patten (of Barnes, now the Chancellor of the University of Oxford, UK) on November 4, 1994.]
My research interests include combinatorics and numerical analysis.

List of publications (Mathematical Reviews)

Asymptotic probability distributions of some permutation statistics for the wreath product C_r wr S_n (with T. Mansour), Online J. Anal. Comb., (2012), to appear.

Counting simsun permutations by descents (with W.C. Shiu), Ann. Comb. 15 (2011), no. 4, 625--635.

A Carlitz identity for the wreath product C_r wr S_n (with T. Mansour), Adv. in Appl. Math. 47 (2011), no. 2, 199--215. MR2803799 (This article was the second most downloaded during April--June, 2011.)

Counting derangements, involutions and unimodal elements in the wreath product C_r wr S_n (with T. Mansour), Israel J. Math. 179 (2010), 425--448. MR2735050 (2011k:05019). (Impact Factor 2010: 0.630)

A recurrence relation for the“inv”analogue of q-Eulerian polynomials, Electron. J. Combin. 17 (2010), no. 1, #N22, 5 pp. (electronic). MR2644859 (2011d:05040). (Impact factor 2010: 0.626)

On derangement polynomials of type B. II, J. Combin. Theory Ser. A 116 (2009), no. 4, 816--830. MR2513636 (2011b:05004). (Impact factor 2009: 0.783) (This article was the 11th most downloaded during April--June, 2009.)
On certain combinatorial expansions of the Eulerian polynomials, Adv. in Appl. Math. 41 (2008), no. 2, 133--157. MR2424624 (2009e:05013). (Impact factor 2008: 0.696) (This article was the second most downloaded during April--June, 2008 and the no. 1 most downloaded during July--September, 2008.)
Counting multiderangements by excedances, Sém. Lothar. Combin. 59 (2008), Article B59d, 16pp. (electronic). MR2465400 (2009k:05010).
On the Eulerian enumeration of involutions, Electron. J. Combin. 15 (2008), no. 1, #R71, 13pp. (electronic). MR2411448 (2009b:05015). (Impact Factor 2008: 0.586)
On the descent numbers and major indices for the hyperoctahedral group (with I. Gessel), Adv. in Appl. Math. 38 (2007), no. 3, 275--301. MR2301692 (2008g:05007). (Impact factor 2007: 0.718) (This article was the 4th most downloaded during January--March, 2007, and the 9th most cited since 2007.)
Counting involutory, unimodal and alternating signed permutations, Discrete Math. 306 (2006), no. 18, 2222--2228. MR2255616. (Impact factor 2006: 0.347)
**On derangement polynomials of type B, Sém. Lothar. Combin. 55 (2006), Article B55b, 6pp. (electronic). MR2223025 (2007b:05022)**

On nonoverlapping domain decomposition methods for the incompressible Navier-Stokes equations (with X. Xu and S.H. Lui), M2AN Math. Model. Numer. Anal. 39 (2005), no. 6, 1251--1269. MR2195911 (2007j:76125) (Impact factor 2005: 0.857)
On the Eulerian polynomials of type D, European J. Combin. 24 (2003), no. 4, 391--408. MR1975943 (2004c:11024) Errata (Impact factor 2003: 0.400)
Noncommutative Symmetric Functions of Type B, Ph.D. Thesis, Massachusetts Institute of Technology, June 2001. MR2717011

Send comments to cochow@ied.edu.hk

Last modified Tue Jan 12 15:04:57 CST 2010

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