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Correspondence may refer to: *In general usage, non-concurrent, remote
communication Communication (from la, communicare, meaning "to share" or "to be in relation with") is usually defined as the transmission of information. The term may also refer to the message communicated through such transmissions or the field of inquir ...
between people, including
letter Letter, letters, or literature may refer to: Characters typeface * Letter (alphabet), a character representing one or more of the sounds used in speech; any of the symbols of an alphabet. * Letterform, the graphic form of a letter of the alphabe ...
s,
email Electronic mail (email or e-mail) is a method of exchanging messages ("mail") between people using electronic devices. Email was thus conceived as the electronic ( digital) version of, or counterpart to, mail, at a time when "mail" meant ...
,
newsgroups A Usenet newsgroup is a repository usually within the Usenet system, for messages posted from users in different locations using the Internet. They are discussion groups and are not devoted to publishing news. Newsgroups are technically distinct ...
,
Internet forums An Internet forum, or message board, is an online discussion site where people can hold conversations in the form of posted messages. They differ from chat rooms in that messages are often longer than one line of text, and are at least temporar ...
,
blogs A blog (a truncation of "weblog") is a discussion or informational website published on the World Wide Web consisting of discrete, often informal diary-style text entries (posts). Posts are typically displayed in reverse chronological order ...
.


Science

*
Correspondence principle In physics, the correspondence principle states that the behavior of systems described by the theory of quantum mechanics (or by the old quantum theory) reproduces classical physics in the limit of large quantum numbers. In other words, it says t ...
(physics): quantum physics theories must agree with classical physics theories when applied to large quantum numbers *
Correspondence principle (sociology) The correspondence principle or ''correspondence thesis'' is a sociological theory that posits a close relationship between social standing and the educational system. Writers in this vein (notably Gary Watson and Diep Tran) are in particular inte ...
, the relationship between social class and available education *
Correspondence problem The correspondence problem refers to the problem of ascertaining which parts of one image correspond to which parts of another image, where differences are due to movement of the camera, the elapse of time, and/or movement of objects in the photo ...
(computer vision), finding depth information in stereography *Regular sound correspondence (linguistics), see Comparative method (linguistics)


Mathematics

*
Binary relation In mathematics, a binary relation associates elements of one set, called the ''domain'', with elements of another set, called the ''codomain''. A binary relation over Set (mathematics), sets and is a new set of ordered pairs consisting of ele ...
** 1:1 correspondence, an older name for a
bijection In mathematics, a bijection, also known as a bijective function, one-to-one correspondence, or invertible function, is a function between the elements of two sets, where each element of one set is paired with exactly one element of the other s ...
**
Multivalued function In mathematics, a multivalued function, also called multifunction, many-valued function, set-valued function, is similar to a function, but may associate several values to each input. More precisely, a multivalued function from a domain to a ...
*
Correspondence (algebraic geometry) In algebraic geometry, a correspondence between algebraic variety, algebraic varieties ''V'' and ''W'' is a subset ''R'' of ''V''×''W'', that is closed in the Zariski topology. In set theory, a subset of a Cartesian product of two sets is called a ...
, between two algebraic varieties * Correspondence (category theory), the opposite of a profunctor * Correspondence (von Neumann algebra) or bimodule, a type of Hilbert space * Correspondence analysis, a multivariate statistical technique


Philosophy and religion

*
Correspondence theory of truth In metaphysics and philosophy of language, the correspondence theory of truth states that the truth or falsity of a statement is determined only by how it relates to the world and whether it accurately describes (i.e., corresponds with) that world ...
, a theory in epistemology * Correspondence (theology), the relationship between spiritual and physical realities *
Table of magical correspondences A table of magical correspondences is a list of magical correspondences between items belonging to different categories, such as correspondences between certain deities, heavenly bodies, plants, perfumes, precious stones, etc. Such lists were co ...
, list of relations between various items used in ceremonial magic


Entertainment

*
Correspondence chess Correspondence chess is chess played by various forms of long-distance correspondence, traditionally through the postal system. Today it is usually played through a correspondence chess server, a public internet chess forum, or email. Less common ...
played between different geographical locations * Correspondence (album), a 1983 studio album by singer and musician Peter Godwin *''
The Correspondence ''The Correspondence'' ( it, La corrispondenza) is an English-language Italian romantic film written and directed by Giuseppe Tornatore. It stars Jeremy Irons and Olga Kurylenko in lead roles, and was released on 14 January 2016. The film sco ...
'', a 2016 film by Giuseppe Tornatore, featuring Jeremy Irons * ''Correspondences'' (Babbitt), a 1967 musical work by Milton Babbitt


Other uses

*Correspondence course, a
distant education Distance education, also known as distance learning, is the education of students who may not always be physically present at a school, or where the learner and the teacher are separated in both time and distance. Traditionally, this usually in ...
method


See also

* Correspondent (disambiguation) *
La Correspondencia (disambiguation) La Correspondencia may refer to: * ''La Correspondencia'' (newspaper), a Puerto Rican newspaper * ', a Spanish newspaper published from 1859 to 1925 * ''La Correspondencia Militar ''La Correspondencia Militar'' (''The Military Correspondence''), ...
{{disambiguation