Research output: Contribution to journal › Article › peer-review
The Decomposition Tree of a Biconnected Graph. / Karpov, D. V.
In: Journal of Mathematical Sciences (United States), Vol. 204, No. 2, 2015, p. 232-243.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - The Decomposition Tree of a Biconnected Graph
AU - Karpov, D. V.
N1 - Karpov, D.V. The Decomposition Tree of a Biconnected Graph. J Math Sci 204, 232–243 (2015). https://doi.org/10.1007/s10958-014-2198-z
PY - 2015
Y1 - 2015
N2 - The decomposition tree of a biconnected graph is in brief the decomposition tree of a biconnected graph by the set of all single cutsets of it (i.e., 2-vertex cutsets that are independent with all other 2-vertex cutsets). It is shown that this tree has much in common with the classical tree of blocks and cutpoints of a connected graph. With the help of the decomposition tree of a biconnected graph, a planarity criterion is proved and some upper bounds on the chromatic number of this graph are found. Finally, the structure of critical biconnected graphs is studied, and it is proved that each such graph has at least four vertices of degree 2. Bibliography: 11 titles.
AB - The decomposition tree of a biconnected graph is in brief the decomposition tree of a biconnected graph by the set of all single cutsets of it (i.e., 2-vertex cutsets that are independent with all other 2-vertex cutsets). It is shown that this tree has much in common with the classical tree of blocks and cutpoints of a connected graph. With the help of the decomposition tree of a biconnected graph, a planarity criterion is proved and some upper bounds on the chromatic number of this graph are found. Finally, the structure of critical biconnected graphs is studied, and it is proved that each such graph has at least four vertices of degree 2. Bibliography: 11 titles.
KW - Chromatic number
KW - Terminal Part
KW - Decomposition Tree
KW - Boundary Vertex
KW - Decomposition Part
UR - http://www.scopus.com/inward/record.url?scp=84925487835&partnerID=8YFLogxK
U2 - 10.1007/s10958-014-2198-z
DO - 10.1007/s10958-014-2198-z
M3 - Article
AN - SCOPUS:84925487835
VL - 204
SP - 232
EP - 243
JO - Journal of Mathematical Sciences
JF - Journal of Mathematical Sciences
SN - 1072-3374
IS - 2
ER -
ID: 36925418