
Hana Kim
PostDoc
Sungkyunkwan University
hakkai14@skku.edu 
History
 Sungkyunkwan University B.S. in Mathematics, 2006
 Sungkyunkwan University M.S. in Mathematics, 2008
 Sungkyunkwan University Ph.D. in Mathematics, 2012
 National Institute for Mathematical Sciences, Post Doc. 20142017
 Sungkyunkwan University Post Doc. in Mathematics, 2017.9present
Research Interests
 Riordan group theory, Matrix theory, Algebra, Enumerative combinatorics.
Publications
 A refined enumeration of hex trees and related polynomials (with R. P. Stanley), European J. Comb. 54 (2016), 207219.
 A link between ordered trees and greenred trees (with G.S. Cheon and L. W. Shapiro), J. Korean Math. Soc. 53 (2016), 187199.
 Representing polynomials as characteristic polynomials via the Stieltjes transform (with G.S. Cheon), Linear Algebra Appl. 476 (2015), 184196.
 The elements of finite order in the Riordan group over the complex field (with G.S. Cheon), Linear Algebra Appl. 439 (2013), 40324046.
 A new aspect of Hankel matrices via Krylov matrix (with G.S. Cheon), Linear Algebra Appl. 438 (2013), 361373.
 Combinatorics of Riordan arrays with identical $A$ and $Z$ sequences (with G.S. Cheon and L. W. Shapiro), Discrete Math. 312 (2012), 20402049.
 The hitting time subgroup, ¨©ukasiewicz paths and Faber polynomials (with G.S. Cheon and L. W. Shapiro), Eur. J. Combin. 32 (2011), 8291.
 An algebraic structure of Faber polynomials (with G.S. Cheon and L. W. Shapiro), Linear Algebra Appl. 433 (2010), 11701179.
 Riordan group involutions and the $\Delta$sequence (with G.S. Cheon, S.T. Jin and L. W. Shapiro), Discrete Appl. Math. 157 (2009), 16961701.
 A generalization of Lucas polynomial sequence (with G.S. Cheon and L. W. Shapiro), Discrete Appl. Math. 157 (2009), 920927.
 Riordan group involutions (with G.S. Cheon and L. W. Shapiro), Linear Algebra Appl. 428 (2008), 941952.
 Simple proofs of open problems about the structure of involutions in the Riordan group (with G.S. Cheon), Linear Algebra Appl. 428 (2008), 930940

