The proximity π=π(G) of a connected graph G is the minimum, over
all vertices, of the average distance from a vertex to all others. Similarly,
the maximum is called the remoteness and denoted by ρ=ρ(G). The
concepts of proximity and remoteness, first defined in 2006, attracted the
attention of several researchers in Graph Theory. Their investigation led to a
considerable number of publications. In this paper, we present a survey of the
research work.Comment: arXiv admin note: substantial text overlap with arXiv:1204.1184 by
other author