Four-term recurrence relations for \(\gamma\)-forms. (English. Russian original) Zbl 1317.33008
Proc. Steklov Inst. Math. 272, Suppl. 2, S157-S161 (2011); translation from Sovrem. Probl. Mat. 9, 37-43 (2007).
Reviewer: Andrei A. Kapaev (St. Petersburg)