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.
From 711 to 997 â¦. The word Moors derives from the Latin mauri, a name for the Berber tribes living in Roman Mauretania (modern day Algeria and Morocco). It has no ethnographic meaning but can be used to refer to all Muslims, Berber or Arab, who conquered the Iberian Peninsula.