东北数学（英文版）
東北數學（英文版）
동북수학（영문판）
NORTHEASTERN MATHEMATICAL JOURNAL
2000年
4期
484-490
,共7页
reducible Heegaard splitting%weakly reducible Heegaard splitting%handle addition
In this paper, we shall use Casson-Gordon-Scharlemann ideas to prove three main theorems in structures on Heegaard splittings.
