Some Properties of the Lattice of Path Sets of a Connected Graph
-
2018-10-02 https://doi.org/10.14419/ijet.v7i4.10.20919 -
Connected graph, block, cut point. -
Abstract
It is known that the set of all path sets of a finite connected graph G together with empty set partially ordered by set inclusion relation forms a lattice denoted by PATH(G). In this paper we studied some properties of PATH(G). In fact, it has been shown that an element of PATH(G) is doubly irreducible if and only if it contains a single vertex which is not a cut vertex of G. Also it is proved that PATH(G) is planar if and only if G is a chain of three or more blocks.
Â
 -
References
[1] Asha saraswathi B and Lavanya S, “On the lattice of convex edge sets of a connected directed graphâ€, International journal of pure and applied mathematical sciences Volume 8, Number 2(2015), pp155-161
[2] Birkhoof.G. “Lattice theoryâ€, American mathematical Soc, Third edition(New York, 1967)
[3] D Kelly and I Rival, “planar latticesâ€, canad j math, 27 no 3(1975),635-665.
[4] Gratzer, G: “General lattice theoryâ€, Birkhauser Verlag, academic press,1978
[5] Harary F: “Graph theoryâ€, Addision-wesley, 1969
[6] Harary F,etl. “Boolean distance for graphsâ€, Discrete mathematics. 39(1982)123-127
[7] Girishkumara R and Lavanya S, “On the lattice of convex sets and path sets of a connected graphâ€, International Journal of Mathematics Research. Volume 7,number 2(2015), pp 197-202
[8] Lavanya.S and Subramanya Bhat.S, “On the lattice of convex sets of Connected graphâ€, Global journal of pure and applied Mathematics. Vol 7, 2(2011), 157-162
[9] Lavanya .S, “On the lattice of path sets of a connected graphâ€, Indian Journal of Mathematics research, Vol 1, Nov 1(2013), 219-222
[10] Pfaltz.J.L.,“Convexity in directed graphsâ€, J.Combinatorical theory. 10(1971), 143-162
[11] Sergio R Canoy,Jr and I.J.LGraces, “Convex sets under some graph operationsâ€, Graphs and combinotorics. (2002)18,787-79.
[12] Sachs .D. The lattice of sub algebras of a Boolean algebra, Canada. J.Math.14 (1962), 451-460.
-
Downloads
-
How to Cite
R, G., & S, L. (2018). Some Properties of the Lattice of Path Sets of a Connected Graph. International Journal of Engineering & Technology, 7(4.10), 310-312. https://doi.org/10.14419/ijet.v7i4.10.20919Received date: 2018-10-04
Accepted date: 2018-10-04
Published date: 2018-10-02