Vaginal Operations

Three Graceful Operations

A graph of size n is said to be graceful when is possible toassign distinct integers from {0, 1, . . . , n} to its verticesand {|f(u)−f(v)| : uv ∈ E(G)} consists of n integers. Inthis paper we present broader families of graceful graphs; these families are obtained via three different operations: the third power of a caterpillar, the symmetric product of G and K2 , and the disjoint union of G a...

Laparoscopic Assisted Vaginal Hysterectomy versus Vaginal Hysterectomy

Hysterectomy is one of the commonest gynecological operations. The outcomes following vaginal hysterectomy have been proved to be better than those following abdominal hysterectomy. Since the availability and widespread use of laparoscopic hysterectomy, the mode of hysterectomy is an issue of debate in cases of non prolapsed uteri, amongst proponents of vaginal and laparoscopic surgery. Laparos...

Applications of Graph Operations

In this paper, some applications of our earlier results in working with chemical graphs are presented.

On exponential domination and graph operations

An exponential dominating set of graph $G = (V,E )$ is a subset $Ssubseteq V(G)$ such that $sum_{uin S}(1/2)^{overline{d}{(u,v)-1}}geq 1$ for every vertex $v$ in $V(G)-S$, where $overline{d}(u,v)$ is the distance between vertices $u in S$ and $v  in V(G)-S$ in the graph $G -(S-{u})$. The exponential domination number, $gamma_{e}(G)$, is the smallest cardinality of an exponential dominating set....

Vaginal Cyst