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There are 10 stellated regular 4-polytopes (Wells 1991, p. 209).

A triangle center is regular iff there is a triangle center function which is a polynomial in Delta, a, b, and c (where Delta is the area of the triangle) such that the ...

A theorem that classifies planar regular closed curves up to regular homotopy by their contour winding numbers (Whitney 1937). In his thesis, S. Smale generalized this result ...

If f(z) is regular and of the form O(e^(k|z|)) where k<pi, for R[z]>=0, and if f(z)=0 for z=0, 1, ..., then f(z) is identically zero.

Of all convex n-gons of a given perimeter, the one which maximizes area is the regular n-gon.

A point which lies on at least one ordinary line is called an ordinary point, or sometimes a regular point.

An automorphism which interchanges the two vertices of a regular map at each edge without interchanging the vertices.

A function is termed regular iff it is analytic and single-valued throughout a region R.

The regular heptagon is the seven-sided regular polygon illustrated above, which has Schläfli symbol {7}. According to Bankoff and Garfunkel (1973), "since the earliest days ...

A regular patch is a patch x:U->R^n for which the Jacobian J(x)(u,v) has rank 2 for all (u,v) in U. A patch is said to be regular at a point (u_0,v_0) in U provided that its ...