Schubert (1949) showed that every knot can be uniquely decomposed (up to the order in which the decomposition is performed) as a knot sum of a class of knots known as prime knots, which cannot themselves be further decomposed (Livingston 1993, p. 5; Adams 1994, pp.
The Moors were Muslim inhabitants of the Maghreb, the Iberian Peninsula, Sicily, and Malta during the Middle Ages.
Moor. n. 1. A member of a traditionally Muslim people of mixed Berber and Arab ancestry, now living chiefly in northwest Africa. 2. One of the Muslims who invaded Spain in the 8th century and established a civilization in Andalusia that lasted until the late 15th century.