Search Results for ""

The study of random geometric structures. Stochastic geometry leads to modelling and analysis tools such as Monte carlo methods.

An urelement contains no elements, belongs to some set, and is not identical with the empty set (Moore 1982, p. 3; Rubin 1967, p. 23). "Ur" is a German prefix which is ...

Weill's theorem states that, given the incircle and circumcircle of a bicentric polygon of n sides, the centroid of the tangent points on the incircle is a fixed point W, ...

Given the incircle and circumcircle of a bicentric polygon of n sides, the centroid of the tangent points on the incircle is a fixed point W, known as the Weill point, ...

If X and Y are independent variates and X+Y is a normal distribution, then both X and Y must have normal distributions. This was proved by Cramér in 1936.

The Grassmannian Gr(n,k) is the set of k-dimensional subspaces in an n-dimensional vector space. For example, the set of lines Gr(n+1,1) is projective space. The real ...

An element of order 2 in a group (i.e., an element A of a group such that A^2=I, where I is the identity element).

An operator of period 2, i.e., an operator * which satisfies ((a)^*)^*=a.

A type of statistic which can be useful for determining asymmetry and tailedness of a population.

The orthogonal decomposition of a matrix into lower trapezoidal matrices.