Battleship (game) Battleship (game) Battleship (also Battleships or Sea Battle) is a guessing game for two players. It is played on ruled grids (paper or board) on which each players fleet of ships (including battleships) are marked. The locations of the fleets are concealed from the other player. Players alternate turns calling "shots" at the other player's ships, and the objective of the game is to destroy the opposing player's fleet. "Battleship" is known worldwide as a pencil and paper game which dates from World War I. It was published by various companies as a pad-and-pencil game in the 1930s, and was
Clifford module Clifford module In mathematics, a Clifford module is a representation of a Clifford algebra. In general a Clifford algebra "C" is a central simple algebra over some field extension "L" of the field "K" over which the quadratic form "Q" defining "C" is defined. The abstract theory of Clifford modules was founded by a paper of M. F. Atiyah, R. Bott and Arnold S. Shapiro. A fundamental result on Clifford modules is that the Morita equivalence class of a Clifford algebra (the equivalence class of the category of Clifford modules over it) depends only on the signature . This is