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A theorem which states that if a Kähler form represents an integral cohomology class on a compact manifold, then it must be a projective Abelian variety.

The partial differential equation P_t=P_(xx)-uP_x+partial/(partialx){[u-F(x)]P}.

A method for constructing magic squares of singly even order n>=6.

Given a positive integer n, a labeled n-digraph is a digraph whose vertex set is {1,...,n}.

The Labs septic is a septic surface having 99 ordinary double points, which is the maximum number known for any septic surface.

The second-order ordinary differential equation y^('')+k/xy^'+epsilony^'y=0.

Whittaker and Watson (1990, pp. 539-540) write Lamé's differential equation for ellipsoidal harmonics of the first kind of the four types as ...

The system of partial differential equations U_t=U·U_(xx)+U·LambdaU.

A generalization of the concept of set unions and intersections.

The United States Department of Commerce recommends that the notation lbx be used to refer to the binary logarithm log_2x (Taylor 1995, p. 33). However, this practice is not ...