国家自然科学基金
研究了一般收敛群的锥形极限集，并证明了当离散收敛群的Ｐｏｉｎｃａｒｅ级数收敛时，其锥形极限集的Ｌｅｂｅｓｇｕｅ测度为零。
The conical limit set of convergence group is studied and that and the Lebesgue measure of the conical limit set is equal to zero when the Poincare series of discrete convergence group converge is proved.
蒋月评 曾三友.离散收敛群的锥形极限集[J].湖南大学学报：自然科学版,1996,23(1):
