Examples of using Recursion theory in English and their translations into Serbian
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Recursion theory.
Arguably, computational complexity theory is a child of recursion theory;
An ongoing area of research in recursion theory studies reducibility relations other than Turing reducibility.
The recursively enumerable sets, although not decidable in general,have been studied in detail in recursion theory.
The main form of computability studied in recursion theory was introduced by Turing(1936).
Recursion theory originated in the 1930s, with work of Kurt Gödel, Alonzo Church, Rózsa Péter, Alan Turing, Stephen Kleene, and Emil Post.
Many mathematicians andcomputational theorists who study recursion theory will refer to it as computability theory. .
Recursion theory is also linked to second order arithmetic, a formal theory of natural numbers and sets of natural numbers.
The field of mathematical logic dealing with computability andits generalizations has been called"recursion theory" since its early days.
The basic questions addressed by recursion theory are"What does it mean for a function on the natural numbers to be computable?
Further reducibilities(positive, disjunctive, conjunctive, linear and their weak and bounded versions)are discussed in the article Reduction(recursion theory).
The main professional organization for recursion theory is the Association for Symbolic Logic, which holds several research conferences each year.
Mathematical logic is often divided into the subfields of set theory, model theory, recursion theory, proof theory, and constructive mathematics.
Recursion theory overlaps with proof theory, effective descriptive set theory, model theory, and abstract algebra.
Invention of the central combinatorial object of recursion theory, namely the Universal Turing Machine, predates and predetermines the invention of modern computers.
Recursion theory includes the study of generalized notions of this field such as arithmetic reducibility, hyperarithmetical reducibility and α-recursion theory, as described by Sacks(1990).
Priority arguments have been employed to solve many problems in recursion theory, and have been classified into a hierarchy based on their complexity(Soare 1987).
In recursion theory, the Ackermann function or Ackermann-Péter function is a simple example of a general recursive function that is not primitive recursive….
Beginning with the theory of recursive sets andfunctions described above, the field of recursion theory has grown to include the study of many closely related topics.
Recursion theory in mathematical logic has traditionally focused on relative computability, a generalization of Turing computability defined using oracle Turing machines, introduced by Turing(1939).
Computability theory is closely related to the branch of mathematical logic called recursion theory, which removes the restriction of studying only models of computation which are close to physically realizable.
The computability theory is closely related to branch of the mathematical logic called the recursion theory, which removes restriction of studying only models of the computation which are reducible to Turing model.
The basic questions addressed by recursion theory are"What does it mean for a function from the natural numbers to themselves to be computable?" and"How can noncomputable functions be classified into a hierarchy based on their level of noncomputability?"?
The first major result in this branch of Recursion Theory is Trakhtenbrot's result that a set is computable if it is(m, n)-recursive for some m, n with 2m> n.
Computability theory, also called recursion theory, is a branch of mathematical logic, of computer science, and of the theory of computation that originated in the 1930s with the study of computable functions and Turing degrees.
According to Rogers, the sets of interest in recursion theory are the noncomputable sets, partitioned into equivalence classes by computable bijections of the natural numbers.
The arithmetical hierarchy is important in recursion theory, effective descriptive set theory, and the study of formal theories such as Peano arithmetic.
Some commentators argue that both the names recursion theory and computability theory fail to convey the fact that most of the objects studied in recursion theory are not computable.
Rogers(1967) has suggested that a key property of recursion theory is that its results and structures should be invariant under computable bijections on the natural numbers(this suggestion draws on the ideas of the Erlangen program in geometry).