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.
Lindisfarne-Also known as Holy Island (there are several other Holy Islands in the UK), lies just off shore of England's north east coast, near Berwick-upon-Tweed. The island is connected to the mainland by a tidal causeway; there is a castle and priory on the island.hatever the total number of islands there are certainly a great many of them-below are details of the main islands and groups of islands around the UK-from north to south. Shetland Islands-A group of around 90 islands, of which only 15 are inhabited, lying around 100 miles north of the Scottish north east coast.