Eu, Sen-Peng; Fu, Tung-Shan; Pan, Yeh-Jong; Ting, Chien-Tai Two refined major-balance identities on 321-avoiding involutions. (English) Zbl 1315.05012 Eur. J. Comb. 49, 250-264 (2015). MSC: 05A15 × Cite Format Result Cite Review PDF Full Text: DOI
Yan, Sherry H. F.; Ge, Huiyun; Zhang, Yaqiu On a refinement of Wilf-equivalence for permutations. (English) Zbl 1307.05004 Electron. J. Comb. 22, No. 1, Research Paper P1.20, 26 p. (2015). MSC: 05A05 05C30 20B30 × Cite Format Result Cite Review PDF Full Text: arXiv Link