different between surjection vs bijection
surjection
English
Etymology
From French surjection, introduced by Nicolas Bourbaki in their treatise Éléments de mathématique.Ultimately borrowed from Latin superiecti? (“a throwing over or on; (fig.) an exaggeration, a hyperbole”).
Pronunciation
- IPA(key): /s??(?).d??k.??n/
Noun
surjection (plural surjections)
- (set theory) A function that is a many-to-one mapping; (formally) Any function for which for every , there is at least one such that .
- 1992, Rowan Garnier, John Taylor, Discrete Mathematics for New Technology, Institute of Physics Publishing, page 220,
- In some special cases, however, the number of surjections can be identified.
- 1999, M. Pavaman Murthy, A survey of obstruction theory for projective modules of top rank, Tsit-Yuen Lam, Andy R. Magid (editors), Algebra, K-theory, Groups, and Education: On the Occasion of Hyman Bass's 65th Birthday, American Mathematical Society, page 168,
- Let be the (irredundant) primary decomposition of . We associate to the pair the element , where is the equivalence class of surjections from to induced by .
- 2003, Gilles Pisier, Introduction to Operator Space Theory, Cambridge University Press, page 43,
- In Banach space theory, a mapping (between Banach spaces) is called a metric surjection if it is onto and if the associated mapping from to is an isometric isomorphism. Moreover, by the classical open mapping theorem, is a surjection iff the associated mapping from to is an isomorphism.
- 1992, Rowan Garnier, John Taylor, Discrete Mathematics for New Technology, Institute of Physics Publishing, page 220,
Synonyms
- (function that is a many-to-one mapping): surjective function
Related terms
- bijection
- injection
- surject
Translations
References
French
Etymology
Formed after bijection and injection.
Pronunciation
- IPA(key): /sy?.??k.sj??/
Noun
surjection f (plural surjections)
- (set theory) surjection
Derived terms
- surjectif
surjection From the web:
- what is surjection and injection
- surjective function
- what does surjective mean
- what is surjection bijection
- what does surjective
- what means surjection
- what is surjection in english
- define injection and surjection
bijection
English
Etymology
From French bijection, introduced by Nicolas Bourbaki in their treatise Éléments de mathématique.
Pronunciation
- IPA(key): /ba?.d??k.??n/
Noun
bijection (plural bijections)
- (set theory) A one-to-one correspondence, a function which is both a surjection and an injection.
- 2002, Yves Nievergelt, Foundations of Logic and Mathematics, page 214,
- The present text has defined a set to be finite if and only if there exists a bijection onto a natural number, and infinite if and only if there does not exist any such bijection.
- 2007, C. J. Date, Logic and Databases: The Roots of Relational Theory, page 167,
- Note in particular that a function is a bijection if and only if it's both an injection and a surjection.
- 2013, William F. Basener, Topology and Its Applications, unnumbered page,
- The basic idea is that two sets A and B have the same cardinality if there is a bijection from A to B. Since the domain and range of the bijection is not relevant here, we often refer to a bijection from A to B as a bijection between the sets, or a one-to-one correspondence between the elements of the sets.
- 2002, Yves Nievergelt, Foundations of Logic and Mathematics, page 214,
Synonyms
- (function that is both a surjection and an injection): one-to-one correspondence
Related terms
- injection
- surjection
Translations
Anagrams
- objicient
French
Pronunciation
- IPA(key): /bi.??k.sj??/
Noun
bijection f (plural bijections)
- (set theory) bijection
bijection From the web:
- meaning of bijection
- what is bijection in graph theory
- what is bijection in combinatorics
- what natural bijection
- what is bijection meaning in hindi
- what is bijection in physics
- what are injections used for
- what is a bijection in discrete math
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