ABHANDLUNGEN AUS DEM MATHEMATISCHEN SEMINAR DER UNIVERSITAT HAMBURG
|
2022年
/
92卷
/
02期
关键词:
Infinite tree of tangles;
End;
Ultrafilter tangle;
Tree set;
Critical vertex set;
distinguish;
Efficiently;
Collectionwise normal;
END SPACES;
GRAPHS;
D O I:
10.1007/s12188-022-00259-1
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
Carmesin has extended Robertson and Seymour's tree-of-tangles theorem to the infinite tangles of locally finite infinite graphs. We extend it further to the infinite tangles of all infinite graphs. Our result has a number of applications for the topology of infinite graphs, such as their end spaces and their compactifications.