Search results
Results from the WOW.Com Content Network
The boundary of a set in topology. The boundary operator on a chain complex in homological algebra. The boundary operator of a differential graded algebra. The conjugate of the Dolbeault operator on complex differential forms. The boundary ∂(S) of a set of vertices S in a graph is the set of edges leaving S, which defines a cut.
In topology and mathematics in general, the boundary of a subset S of a topological space X is the set of points in the closure of S not belonging to the interior of S. An element of the boundary of S is called a boundary point of S. The term boundary operation refers to finding or taking the boundary of a set.
For most symbols, the entry name is the corresponding Unicode symbol. So, for searching the entry of a symbol, it suffices to type or copy the Unicode symbol into the search textbox. Similarly, when possible, the entry name of a symbol is also an anchor, which allows linking easily from another Wikipedia article. When an entry name contains ...
bd – boundary. (Also written as fr or ∂.) Bi – Airy function of the second kind. BIDMAS – Brackets, Indices, Divide, Multiply, Add, Subtract. [3] Bias – bias of an estimator. BWOC – by way of contradiction.
The following table lists many specialized symbols commonly used in modern mathematics, ordered by their introduction date. The table can also be ordered alphabetically by clicking on the relevant header title.
In Euclidean n-space, an (open) n-ball of radius r and center x is the set of all points of distance less than r from x.A closed n-ball of radius r is the set of all points of distance less than or equal to r away from x.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more