Stack - Mathematics

Mathematics

  • Stack (descent theory), general category-theoretical concept to formalise "pull-back" operations in geometry and algebra
  • Algebraic stack, a generalisation of scheme and algebraic space in algebraic geometry; a specific type of the above
  • An old term for a sheaf (mathematics)

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Famous quotes containing the word mathematics:

    “... though mathematics may teach a man how to build a bridge, it is what the Scotch Universities call the humanities, that teach him to be civil and sweet-tempered.”
    —Amelia E. Barr (1831–1919)

    “Why does man freeze to death trying to reach the North Pole? Why does man drive himself to suffer the steam and heat of the Amazon? Why does he stagger his mind with the mathematics of the sky? Once the question mark has arisen in the human brain the answer must be found, if it takes a hundred years. A thousand years.”
    —Walter Reisch (1903–1963)