Results 21 to 30 of about 50 (50)
Category theory for operational semantics
AbstractWe use the concept of a distributive law of a monad over a copointed endofunctor to define and develop a reformulation and mild generalisation of Turi and Plotkin's notion of an abstract operational rule. We make our abstract definition and give a precise analysis of the relationship between it and Turi and Plotkin's definition.
LENISA, Marina, POWER J., WATANABE H.
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Category Theory and Organic Electronics
Inorganic semiconductors and conducting polymers are described by band conduction models with delocalized electrons, whereas small-molecule organic compounds are described by hopping conduction between localized molecular orbitals. However, the latter devices can reproduce fully the characteristics of semiconductor devices.
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Homotopy Theory in Abelian Categories [PDF]
The concept of homotopy for homomorphisms of modules, suggested by analogy with fundamental properties of the topological homotopy, was developed by Eckmann and Hilton (3; 9; 10). In the present paper, this concept of homotopy is generalized to additive categories with an additional structure, and the theory of homotopy, including in particular various
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Interpolation categories for homology theories
40 pages, corrected version of second part of the replaced version, first part will appear sepparately as "Truncated resolution model structures", to appear in ...
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ON ‘CATEGORIES’ OF QUANTUM FIELD THEORIES [PDF]
We give a rough description of the 'categories' formed by quantum field theories. A few recent mathematical conjectures derived from quantum field theories, some of which are now proven theorems, will be presented in this language.
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Samuel Alexander’s Theory of Categories [PDF]
The Australian-born British philosopher Samuel Alexander (1859-1938) was one of the first realists of the twentieth century to defend a theory of categories. In Space, Time and Deity (1920) he constructs a realist metaphysics that posits Space-Time as the one monistic entity that encompasses every entity and every feature in reality, including the ...
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Grassmann’s Dialectics and Category Theory [PDF]
In several key connections in his foundations of geometrical algebra, Grassmann makes significant use of the dialectical philosophy of 150 years ago. Now, after fifty years of development of category theory as a means for making explicit some nontrivial general arguments in geometry, it is possible to recover some of Grassmann’s insights and to express
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Set theory for category theory
Questions of set-theoretic size play an essential role in category theory, especially the distinction between sets and proper classes (or small sets and large sets). There are many different ways to formalize this, and which choice is made can have noticeable effects on what categorical constructions are permissible.
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