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2. AOL Mail

   mail.aol.com

   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!

3. Graph algebra - Wikipedia

   en.wikipedia.org/wiki/Graph_algebra

   Graph algebra. In mathematics, especially in the fields of universal algebra and graph theory, a graph algebra is a way of giving a directed graph an algebraic structure. It was introduced by McNulty and Shallon, [1] and has seen many uses in the field of universal algebra since then.

4. Banknote - Wikipedia

   en.wikipedia.org/wiki/Banknote

   e. A banknote —also called a bill ( North American English ), paper money, or simply a note —is a type of negotiable promissory note, made by a bank or other licensed authority, payable to the bearer on demand. Banknotes were originally issued by commercial banks, which were legally required to redeem the notes for legal tender (usually ...

5. Complete graph - Wikipedia

   en.wikipedia.org/wiki/Complete_graph

   The complement graph of a complete graph is an empty graph. If the edges of a complete graph are each given an orientation, the resulting directed graph is called a tournament. K n can be decomposed into n trees T i such that T i has i vertices. Ringel's conjecture asks if the complete graph K 2n+1 can be decomposed into copies of any tree with ...

6. ebook - Wikipedia

   en.wikipedia.org/wiki/Ebook

   ebook. An ebook (short for electronic book ), also spelled as e-book or eBook, is a book publication made available in electronic form, consisting of text, images, or both, readable on the flat-panel display of computers or other electronic devices. [1] Although sometimes defined as "an electronic version of a printed book", [2] some e-books ...

7. United States dollar - Wikipedia

   en.wikipedia.org/wiki/United_States_dollar

   The same coinage act also set the value of an eagle at 10 dollars, and the dollar at 1 ⁄ 10 eagle. It called for silver coins in denominations of 1, 1 ⁄ 2, 1 ⁄ 4, 1 ⁄ 10, and 1 ⁄ 20 dollar, as well as gold coins in denominations of 1, 1 ⁄ 2 and 1 ⁄ 4 eagle. The value of gold or silver contained in the dollar was then converted ...

8. Neighbourhood (graph theory) - Wikipedia

   en.wikipedia.org/wiki/Neighbourhood_(graph_theory)

   Neighbourhood (graph theory) In this graph, the vertices adjacent to 5 are 1, 2 and 4. The neighbourhood of 5 is the graph consisting of the vertices 1, 2, 4 and the edge connecting 1 and 2. For other meanings of neighbourhoods in mathematics, see Neighbourhood (mathematics). In graph theory, an adjacent vertex of a vertex v in a graph is a ...

9. Regular graph - Wikipedia

   en.wikipedia.org/wiki/Regular_graph

   In graph theory, a regular graph is a graph where each vertex has the same number of neighbors; i.e. every vertex has the same degree or valency. A regular directed graph must also satisfy the stronger condition that the indegree and outdegree of each internal vertex are equal to each other. [1] A regular graph with vertices of degree k is ...