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.
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).
In topology, knot theory is the study of mathematical knots.
Mathematics (from Greek μάθημα máthēma, "knowledge, study, learning") is the study of such topics as quantity, structure, space, and change.
"Morse function" redirects here.
In the mathematical theory of knots, a pretzel link is a special kind of link.
Ralph Hartzler Fox (March 24, 1913 – December 23, 1973) was an American mathematician.
A slice knot is a type of mathematical knot.