CatDat

category of metric spaces with non-expansive maps

Satisfied Properties

Properties from the database

Deduced properties

Unsatisfied Properties

Properties from the database

Deduced properties*

*This also uses the deduced satisfied properties.

Unknown properties

There are 8 properties for which the database doesn't have an answer if they are satisfied or not. Please help to contribute the data!

Special objects

  • terminal object: singleton space
  • initial object: empty metric space
  • products: [finite case] direct products with the metric d(x,y)=supidi(xi,yi)d(x,y) = \sup_i d_i(x_i,y_i)

Special morphisms

  • isomorphisms: bijective isometries
  • monomorphisms: injective non-expansive maps
  • epimorphisms: non-expansive maps with dense image
  • regular monomorphisms:
  • regular epimorphisms: