Some Cobweb Posets Digraphs' Elementary Properties and Questions
  A digraph that represents reasonably a scheduling problem should be a directed acyclic graph. Here down we shall deal with special kind of graded $DAGs$ named $KoDAGs$. For their definition and first primary properties see $ [1]$, where natural join of directed biparted graphs and their corresponding adjacency matrices is defined and then applied to investigate cobweb posets and their $Hasse$ digraphs called $KoDAGs$. In this report we extend the notion of cobweb poset while delivering some elementary consequences of the description and observations established in $[1]$. 
A.K.Kwaniewski