This is a preview. Log in through your library . Abstract An optimum rectilinear Steiner tree for a set A of points in the plane is a tree which interconnects A using horizontal and vertical lines of ...

We want to say no to mulch volcanoes,” says Emily Porter with the University of Maryland Extension. “This is happening way ...

The history of the Euclidean Steiner tree problem, which is the problem of constructing a shortest possible network interconnecting a set of given points in the Euclidean plane, goes back to Gergonne ...

A problem that began with a bug has increased the risk of danger during thunderstorms.“We have the dead ash trees that are very, very fragile,” said certified arborist Tim Back.The emerald ash borer ...

Experts explain whether you can cut a neighbour's tree if it's blocking your natural light — and things you must know before ...