Glossary of game theory

Game theory is the branch of mathematics in which games are studied: that is, models describing human behaviour. This is a glossary of some terms of the subject.

${\displaystyle \sigma \ _{i}}$ is an element of ${\displaystyle \Sigma \ ^{i}}$.

${\displaystyle \sigma \ _{-i}}$ an element of ${\displaystyle \Sigma \ ^{-i}=\prod _{j\in \mathrm {N} ,j\neq i}\Sigma \ ^{j}}$, is a tuple of strategies for all players other than i.

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