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If intersecting stable and unstable manifolds (separatrices) emanate from fixed points of different families, they are called heteroclinic points.

A pair of values x and y one or both of which is complex.

Three concurrent homologous lines pass respectively through three fixed points on the similitude circle which are known as the invariable points.

A node in a graph for which the graph eccentricity equals the graph diameter (Harary 1994, p. 41).

A pole of multiplicity less than p+1.

External (or positive) and internal (or negative) similarity points of two circles with centers C and C^' and radii r and r^' are the points E and I on the lines CC^' such ...

The sequence of six 9s which begins at the 762nd decimal place of pi, pi=3.14159...134999999_()_(six 9s)837... (Wells 1986, p. 51). The positions of the first occurrences of ...

Percolation theory deals with fluid flow (or any other similar process) in random media. If the medium is a set of regular lattice points, then there are two main types of ...

Deduction is the process of drawing conclusions from premises and syllogisms.

Inversion is the process of transforming points P to a corresponding set of points P^' known as their inverse points. Two points P and P^' are said to be inverses with ...