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Ty Callahan.  Lord Kelvin thought that atoms could be knots  Mathematicians create table of knots  Organization sparks knot theory.

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Presentation on theme: "Ty Callahan.  Lord Kelvin thought that atoms could be knots  Mathematicians create table of knots  Organization sparks knot theory."— Presentation transcript:

1 Ty Callahan

2  Lord Kelvin thought that atoms could be knots  Mathematicians create table of knots  Organization sparks knot theory

3  Knot  A loop in R 3  Unknot  Arc  Portion of a knot  Diagram  Depiction of a knot’s projection to a plane

4  OK  NOT OK

5  Two knots are equivalent if there is an isotopy that deforms one link into the other  Isotopy  Continuous deformation of ambient space  Able to distort one into the other without breaking  Nothing more than trial and error can demonstrate equivalence  Can mathematically distinguish between nonequivalence

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7  Choice of the sense in which a knot can be traversed

8  Orientation results in two possible crossings  Right and Left

9  Two Principles 1) Assign a value of 1 to any diagram representing an unknot 2) Skein Relation: Whenever three oriented diagrams differ at only one crossing, the Jones Polynomial is governed by the following equation

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16 Right Left

17  The Jones Polynomial of the Right Trefoil knot does not equal that of the Left Trefoil knot  The knots aren’t isotopes “KNOT” EQUAL!!


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