TY - JOUR
T1 - The Heegaard genera of surface sums
AU - Qiu, Ruifeng
AU - Wang, Shicheng
AU - Zhang, Mingxing
PY - 2010/6
Y1 - 2010/6
N2 - Let M be a compact orientable 3-manifold, and let F be a separating (resp. non-separating) incompressible surface in M which cuts M into two 3-manifolds M1 and M2 (resp. a manifold M1). Then M is called the surface sum (resp. self surface sum) of M1 and M2 (resp. M1) along F, denoted by M=M1∪FM2 (resp. M=M1∪F). In this paper, we will study how g(M) is related to χ(F), g(M1) and g(M2) when both M1 and M2 have high distance Heegaard splittings.
AB - Let M be a compact orientable 3-manifold, and let F be a separating (resp. non-separating) incompressible surface in M which cuts M into two 3-manifolds M1 and M2 (resp. a manifold M1). Then M is called the surface sum (resp. self surface sum) of M1 and M2 (resp. M1) along F, denoted by M=M1∪FM2 (resp. M=M1∪F). In this paper, we will study how g(M) is related to χ(F), g(M1) and g(M2) when both M1 and M2 have high distance Heegaard splittings.
KW - (Self) surface sum
KW - Heegaard distance and genus
KW - Weakly incompressible surfaces
UR - https://www.scopus.com/pages/publications/77952888541
U2 - 10.1016/j.topol.2010.02.015
DO - 10.1016/j.topol.2010.02.015
M3 - 文章
AN - SCOPUS:77952888541
SN - 0166-8641
VL - 157
SP - 1593
EP - 1601
JO - Topology and its Applications
JF - Topology and its Applications
IS - 9
ER -