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{{short description|Connected sum of two trefoil knots with same chirality}} | class= composite ...

...le=The knot book: an elementary introduction to the mathematical theory of knots |publisher=American Mathematical Society |location=Providence, Rhode Island | journal = Journal of Knot Theory and its Ramifications ...

...ara1991}} This is a useful property because it prevents self-intersection and ensures the result under [[gradient descent]] is of the same [[knot type]]. ...s transformation]]s was demonstrated by [[Michael Freedman]], Zheng-Xu He, and [[Zhenghan Wang]] (1994) who used it to show the existence of a <math>C^{1, ...

This is a list of notable [[integer sequence]]s with links to their entries in the [[On-Line Encyclopedia of Integer Sequences]]. ...L''(''n'' − 2)}} for {{math|''n'' &ge; 2}}, with {{math|''L''(0) {{=}} 2}} and {{math|''L''(1) {{=}} 1}}. ...

* ''[[Center for Analysis and Prediction of Storms]]'' ('''CAPS''') ...'Damage Area Per Path Length''', this is one of three US tornado databases and was maintained by [[Ted Fujita]] at the [[University of Chicago]] including ...

Egyptian inventions and discoveries are objects, processes or techniques which owe their existence === Government and Economy === ...