TY - JOUR
T1 - Annulus and Disk Complex Is Contractible and Quasi-Convex
AU - Guo , Qilong
AU - Qiu , Ruifeng
AU - Zou , Yanqing
AU - Zhang , Faze
JO - Communications in Mathematical Research 
VL - 4
SP - 377
EP - 382
PY - 2021
DA - 2021/05
SN - 29
DO - http://doi.org/
UR - https://global-sci.org/intro/article_detail/cmr/19002.html
KW - annulus and disk complex, contractible, quasi-convex.
AB - <p style="text-align: justify;">The annulus and disk complex is defined and researched. Especially, we
prove that this complex is contractible and quasi-convex in the curve complex.</p>