The American Mathematical Society has awarded Yale scholar Alex Kontorovich its prize for best expository paper published in half a decade in either of the society’s two journals. Kontorovich, an ...

In this expository paper we revise some extensions of Kuratowski planarity criterion, providing a link between the embeddings of infinite graphs without accumulation points and the embeddings of ...

This is a preview. Log in through your library . Abstract The eigenvalues of the adjacency operator of a finite regular graph yield a great deal of information about the graph, including bounds on its ...