8 relations: Bridge number, Knot (mathematics), Knot theory, Mathematics, Morse theory, Pretzel link, Ralph Fox, Slice knot.

## Bridge number

In the mathematical field of knot theory, the bridge number is an invariant of a knot defined as the minimal number of bridges required in all the possible bridge representations of a knot.

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## Knot (mathematics)

In mathematics, a knot is an embedding of a circle S^1 in 3-dimensional Euclidean space, R3 (also known as E3), considered up to continuous deformations (isotopies).

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## Knot theory

In topology, knot theory is the study of mathematical knots.

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## Mathematics

Mathematics (from Greek μάθημα máthēma, "knowledge, study, learning") is the study of such topics as quantity, structure, space, and change.

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## Morse theory

"Morse function" redirects here.

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## Pretzel link

In the mathematical theory of knots, a pretzel link is a special kind of link.

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## Ralph Fox

Ralph Hartzler Fox (March 24, 1913 – December 23, 1973) was an American mathematician.

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## Slice knot

A slice knot is a type of mathematical knot.

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## Redirects here:

Folded ribbon knot, Ribbon disk, Ribbon link, Ribbon singularity, Slice-ribbon conjecture.