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.
(plural moors) 1  an extensive waste covered with patches of heath, and having a poor, light soil, but sometimes marshy, and abounding in peat; a heath A cold, biting wind blew across the moor, and the travellers hastened their step. 2  a game preserve consisting of moorland.