Award Date

1-1-2007

Degree Type

Thesis

Degree Name

Master of Science (MS)

Department

Mathematical Sciences

First Committee Member

Ebrahim Salehi

Number of Pages

60

Abstract

For a graph G = (V, E) and a coloring (labeling) f : V(G) → Z2 let vf(i) = | f-1(i)|. The coloring f is said to be friendly if |vf(1) - v f(0)| ≤ 1. The coloring f : V( G) → Z2 induces an edge labeling f* : E( G) → Z2 defined by f* (xy) = f( x) + f(y) (mod 2). Let ef(i) = |f*-1( i)|. The friendly index set of the graph G, denoted by FI (G), is defined by FIG= ef1-ef 0:f isafriendly vertexlabelingof G. In this thesis the friendly index sets of certain classes of trees, called starlike graphs, will be determined.

Keywords

Friendly; Graphs; Index; Sets; Starlike

Controlled Subject

Mathematics

File Format

pdf

File Size

1372.16 KB

Degree Grantor

University of Nevada, Las Vegas

Language

English

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