Liouvillian solutions of irreducible linear difference equations. - Yongjae Cha; Mark van Hoeij (ISSAC, 2009)

Solving recurrence relations using local invariants. - Yongjae Cha; Mark van Hoeij; Giles Levy (ISSAC, 2010)

Abstract only: Solving linear recurrence relations. - Yongjae Cha; Mark van Hoeij; Giles Levy (ACM Commun. Comput. Algebra, 2010)

Solving linear recurrence equations. - Yongjae Cha; Mark van Hoeij; Giles Levy (ACM Commun. Comput. Algebra, 2010)

Closed form solutions of linear difference equations in terms of symmetric products. - Yongjae Cha; Veronika Pillwein (ACM Commun. Comput. Algebra, 2012)

Closed form solutions of linear difference equations in terms of symmetric products. - Yongjae Cha (J. Symb. Comput., 2014)