A set of novel vertex-degree-based invariants was introduced by Gutman, denoted by SO₁, SO₂, . . . , SO₆. These invariants were constructed through geometric reasoning based on a new graph invariant ...

What trends do you notice? What questions does this graph raise for you? By The Learning Network What do you notice about how much it costs the U.S. government to make a penny, nickel, dime and ...

Graphs have been around forever, but the internet has given them new life. It's refocused our attention on the use of graph concepts for information search as an option to traditional hierarchical ...

ADELPHI, Md. -- Soldiers in combat face challenging scenarios on the battlefield as they work to complete their missions. To assist them in the decision making process, Army researchers have ...