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An Abelian differential is an analytic or meromorphic differential on a compact or closed Riemann surface.

The portion of number theory concerned with expressing an integer as a sum of integers from some given set.

The set E of edges of a loopless graph (V,E), being a set of unordered pairs of elements of V, constitutes an adjacency relation on V. Formally, an adjacency relation is any ...

In a graph G, two graph vertices are adjacent if they are joined by a graph edge.

A nonhomogeneous linear equation or system of nonhomogeneous linear systems of equations is said to be affine.

A convex body in Euclidean space that is centrally symmetric with center at the origin is determined among all such bodies by its brightness function (the volume of each ...

A term in logic meaning pertaining to truth and falsehood.

The use of techniques from algebra, topology, and geometry in the solution of combinatorial problems, or the use of combinatorial methods to attack problems in these areas ...

Any tangle obtained by additions and multiplications of rational tangles (Adams 1994).

A knot diagram which has alternating under- and overcrossings as the knot projection is traversed. The first knot which does not have an alternating diagram has 8 crossings.