Graph Theory Essay

1962 Words4 Pages

In order to define and establish what graph theory is, we must first make note of its origin and its basis within the broad subject of mathematics. Graph theory, a smaller branch in a large class of mathematics known as combinatorics, which defined by Jacob Fox as, “is the study of finite or countable discrete structures.” Areas of study in combinatorics include enumerative combinatorics, combinatorial design, extremal combinatorics, and algebraic combinatorics. These subfields consist of the counting of mathematical structures, the constructing and analyzing structures, the discovering “extreme” or “optimal” structures, and the studying of combinatorial structures in the algebraic context. These examples only portray a general sense of combinatorics, just to give a rough idea of what this branch of mathematics covers. After defining the general concept of combinatorics, we can now delve into the distinct subfield of graph theory. Graph theory is defined as the study of graphs, defined as mathematical structures used to portray relationships between mathematical objects. More specifically, graph theory involves ways that finite sets of points, called vertices or nodes, can be connected by lines or arcs, also referred to as edges. The graphs examined through graph theory are not to be confused with the more popularly known graphs, which are functions or relations plotted on the coordinate plane. Graphs can be characterized by multiple properties, the most common of these being complexity. The complexity of a graph depends on various factors such as the number of edges allowed between two vertices, whether or not each edge has an assigned direction to it, and several other elements. This is the most general sense of what graph t... ... middle of paper ... ...would take to get to the other person. Astonishingly it is on average only six. It was actually discovered that the largest amount of edges between two people was a measly twelve. Graph theory really proves the digital age of globalization has connected everyone more than we think. Graph theory has a wide range of applications as we have discovered. These have ranged from the famous Leonhard Euler’s solving of The Seven Bridges of Königsberg problem, to the classic four color theorem, and finally to the current focuses on applications within the realm of computer and data science. With all of these uses, it is certainly clear that graph theory is a subject of modern mathematics that is here to stay. Not only are there enormous applications to a large number of fields, but graph theory does a tremendous job of modeling, explaining, and solving real world problems.

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