Smash Product - Examples

Examples

  • The smash product of any pointed space X with a 0-sphere is homeomorphic to X.
  • The smash product of two circles is a quotient of the torus homeomorphic to the 2-sphere.
  • More generally, the smash product of two spheres Sm and Sn is homeomorphic to the sphere Sm+n.
  • The smash product of a space X with a circle is homeomorphic to the reduced suspension of X:
  • The k-fold iterated reduced suspension of X is homeomorphic to the smash product of X and a k-sphere
  • In domain theory, taking the product of two domains (so that the product is strict on its arguments).

Read more about this topic:  Smash Product

Famous quotes containing the word examples:

    “In the examples that I here bring in of what I have [read], heard, done or said, I have refrained from daring to alter even the smallest and most indifferent circumstances. My conscience falsifies not an iota; for my knowledge I cannot answer.”
    —Michel de Montaigne (1533–1592)

    “It is hardly to be believed how spiritual reflections when mixed with a little physics can hold people’s attention and give them a livelier idea of God than do the often ill-applied examples of his wrath.”
    —G.C. (Georg Christoph)

    “No rules exist, and examples are simply life-savers answering the appeals of rules making vain attempts to exist.”
    —André Breton (1896–1966)