In physics

• Coherence (physics)
  Coherence (physics)
  In physics, coherence is a property of waves that enables stationary interference. More generally, coherence describes all properties of the correlation between physical quantities of a wave....
  
  
  • Polarization
  • Quantum
  • Spatial
  • Spectral
  • Temporal
• Coherence time
  Coherence time
  For an electromagnetic wave, the coherence time is the time over which a propagating wave may be considered coherent...
  
  

In mathematics

• Mutual coherence (linear algebra)
  Mutual coherence (linear algebra)
  In linear algebra, the coherence or mutual coherence of a matrix A is defined as the maximum absolute value of the cross-correlations between the columns of A....
  
  , sometimes referred to as coherence
• Coherence (philosophical gambling strategy)
  Coherence (philosophical gambling strategy)
  In a thought experiment proposed by the Italian probabilist Bruno de Finetti in order to justify Bayesian probability, an array of wagers is coherent precisely if it does not expose the wagerer to certain loss regardless of the outcomes of events on which he is wagering, even if his opponent makes...
  
  , a concept in Bayesian statistics
• Coherence (signal processing)
  Coherence (signal processing)
  -Background:The spectral coherence is a statistic that can be used to examine the relation between two signals or data sets. It is commonly used to estimate the power transfer between input and output of a linear system. If the signals are ergodic, and the system function linear, it can be used to...
  
  
• Coherence (statistics)
  Coherence (statistics)
  In probability theory and statistics, coherence can have two meanings.*When dealing with personal probability assessments, or supposed probabilities derived in nonstandard ways, it is a property of self-consistency across a whole set of such assessments...
  
  
• Coherence condition
  Coherence condition
  In mathematics, and particularly category theory a coherence condition is a collection of conditions requiring that various compositions of elementary morphisms are equal...
  
  
• Coherent sampling, a relationship used in Fast Fourier Transforms
• Coherent sheaf
  Coherent sheaf
  In mathematics, especially in algebraic geometry and the theory of complex manifolds, coherent sheaves are a specific class of sheaves having particularly manageable properties closely linked to the geometrical properties of the underlying space. The definition of coherent sheaves is made with...
  
  

In philosophy

• Coherentism
  Coherentism
  There are two distinct types of coherentism. One refers to the coherence theory of truth. The other refers to the coherence theory of justification. The coherentist theory of justification characterizes epistemic justification as a property of a belief only if that belief is a member of a coherent...
  
   is an epistemological theory
• There is also the coherence theory of truth
  Coherence theory of truth
  Coherence theory of truth regards truth as coherence with some specified set of sentences, propositions or beliefs. There is no single coherence theory of truth, but rather an assortment of perspectives that are commonly collected under this title...
  
  

In computational science

• Cache coherence
  Cache coherence
  In computing, cache coherence refers to the consistency of data stored in local caches of a shared resource.When clients in a system maintain caches of a common memory resource, problems may arise with inconsistent data. This is particularly true of CPUs in a multiprocessing system...
  
  , a special case of memory coherence
• Coherence (programming language), an experimental programming language based upon Subtext
• Memory coherence
  Memory coherence
  Memory coherence is an issue that affects the design of computer systems in which two or more processors or cores share a common area of memory....
  
  , a concept in computer architecture

As name of IT products

• Coherence (software), a component of Parallels Desktop for Mac, the Windows virtualization software
• Coherence (UPNP)
  Coherence (UPNP)
  As a stand-alone application Coherence acts as a DLNA/UPnP MediaServer and exports local and remote media files via its backends to other UPnP clients.And together with a supported client it forms a controllable DLNA/UPnP MediaRenderer...
  
  , some free DLNA/UPnP tools (MediaServer/MediaRender) with a Python framework
• Coherent (operating system)
  Coherent (operating system)
  The Coherent operating system was a Version 7 Unix clone by the now-defunct Mark Williams Company, originally produced for the PDP-11 in 1980. A port was introduced in 1983 as the first Unix-like system for IBM PC compatible computers....
  
  , a UNIX-clone operating system
• Oracle Coherence
  Oracle Coherence
  In computing, Oracle Coherence – a Java-based in-memory data-grid product – provides data caching, data replication and distributed computing services. It addresses issues with traditional database-centric applications, aiming to improve on reliability, scalability and performance. Coherence uses...
  
  , an in-memory data grid product from Oracle

Other uses

• Coherence (cognitive science), a property of mental/cognitive states
• Coherence (linguistics)
  Coherence (linguistics)
  Coherence in linguistics is what makes a text semantically meaningful.It is especially dealt with in text linguistics. Coherence is achieved through syntactical features such as the use of deictic, anaphoric and cataphoric elements or a logical tense structure, as well as presuppositions and...
  
  , what makes a text semantically meaningful
• Coherence (music theory), a synonym for strict Rothenberg propriety in diatonic set theory
• Coherence time (communications systems)
  Coherence time (communications systems)
  In communications systems, a communication channel may change with time. Coherence time is the time duration over which the channel impulse response is considered to be not varying...
  
  , duration when a communication channel can be assumed to be constant
• Coherent (company), a company specializing in equipment to make and measure coherent light

See also

• Cohesion (disambiguation)
• Mutual coherence (disambiguation)