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sav08:isomorphism [2009/02/25 10:14] (current)
vkuncak created
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 +====== Isomorphism ======
 +
 +Isomorphism is a bijection between two collection of entities which preserves //​structure//​.
 +
 +If the entities have no structure, isomorphism is simply a bijection.
 +
 +If entities are graphs, we have graph isomorphism.
 +
 +Many cases of isomorphism can be explained as 
 +  * isomorphism of algebraic structures (groups, fields, etc.)
 +  * more generally, isomorphisms of models of first-order logic formulas
  
 
sav08/isomorphism.txt · Last modified: 2009/02/25 10:14 by vkuncak
 
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