The minimum size of a linear set

on the effect of linear & non-linear texts on students comprehension and recalling

چکیده ندارد.

A family of large set of size nine

 We investigate the existence of some‎ ‎large sets of size nine‎. ‎The large set $LS[9](2,5,29)$ is constructed and‎ ‎existence of the family $LS[9](2,5,27l+j)$ for $lgeq 1, ‎2leq‎ ‎j

A minimum data set for chronic venous disease

Maximum graphs with unique minimum dominating set of size two

We prove that the maximum number of edges of a graph of order n which has a unique minimum dominating set of size two is bounded above by ( n−2 2 ) . As a corollary to this result, we prove a conjecture by Fischermann, Rautenbach and Volkmann that the maximum number of edges of a graph which has a unique minimum dominating set of size two is ( n−2 2 ) .

Diameter Two Graphs of Minimum Order with Given Degree Set

The degree set of a graph is the set of its degrees. Kapoor et al. [Degree sets for graphs, Fund. Math. 95 (1977) 189-194] proved that for every set of positive integers, there exists a graph of diameter at most two and radius one with that degree set. Furthermore, the minimum order of such a graph is determined. A graph is 2-self- centered if its radius and diameter are two. In this paper for ...