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The integral transform defined by (Kphi)(x)=int_0^inftyG_(pq)^(mn)(xt|(a_p); (b_q))phi(t)dt, where G_(pq)^(mn) is a Meijer G-function. Note the lower limit of 0, not -infty ...

An algebra, also called a nilalgebra, consisting only of nilpotent Elements.

Any irreducible curve may be carried by a factorable Cremona transformation into one with none but ordinary singular points.

Let A be a C^*-algebra, then an element a in A is called normal if aa^*=a^*a.

The study of numbers for the supposed purpose of predicting future events or seeking connections with the occult.

A map is called "one-to-one" (or "1:1") if it is injective. However, being in "one-to-one correspondence" is synonymous with being a bijection. Unfortunately, this confusing ...

A map which sends open sets to open sets.

The theory and applications of Laplace transforms and other integral transforms.

The central point (r=0) in polar coordinates, or the point with all zero coordinates (0, ..., 0) in Cartesian coordinates. In three dimensions, the x-axis, y-axis, and z-axis ...

The pentagrammic dipyramid is the dual polyhedron of the pentagrammic prism U_(78).