In diploma thesis we will describe concept of a knot invariant known as the stick number. This concept proves to be useful when we want to determine if two knots are equivalent.
A review of main definitions from knot theory will be made before introducing a concept of the stick number, which is essential for understanding the thesis.
Furthermore, a concept of the stick number and its features for different knot classes will be introduced and also, for better understanding, illustrated by few examples. Some theorems will be given and demonstrated by examples, which can come in handy at finding the stick number.
Last chapter presents a knot invariant known as the crossing number, which is useful for determining the stick number.
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