Games that involve set theory or topology (Q1375987)

From MaRDI portal





scientific article; zbMATH DE number 1106667
Language Label Description Also known as
English
Games that involve set theory or topology
scientific article; zbMATH DE number 1106667

    Statements

    Games that involve set theory or topology (English)
    0 references
    0 references
    8 November 2000
    0 references
    This paper considers 2-player games, where each player has an infinite set of strategies. The paper contains 33 open problems and almost as many theorems; results and proofs are said to be contained in a forthcoming textbook. To give a flavor of the paper, consider the Hurewicz game on a topological space \(X\). Each inning \(n\) of the game, player 1 chooses an open cover \(O(n)\) of the space, player 2, a finite subset \(T(n)\) of \(O(n)\). The players play one inning for each positive integer. Player 2 wins the play \(O(1), T(1),\dots, O(n), T(n),\dots\), if each element is in all but finitely many of the sets \(\cup T(n)\); otherwise, player 1 wins. Hurewicz (1927) conjectured that this game is determined for all sets of real numbers. However, the continuum hypothesis implies that Hurewicz's conjecture is false.
    0 references
    2-player games
    0 references
    infinite strategy sets
    0 references
    Hurewicz game
    0 references

    Identifiers

    0 references
    0 references
    0 references
    0 references