PH (complexity) and PSPACE

Shortcuts: Differences, Similarities, Jaccard Similarity Coefficient, References.

Difference between PH (complexity) and PSPACE

PH (complexity) vs. PSPACE

In computational complexity theory, the complexity class PH is the union of all complexity classes in the polynomial hierarchy: PH was first defined by Larry Stockmeyer. In computational complexity theory, PSPACE is the set of all decision problems that can be solved by a Turing machine using a polynomial amount of space.

Similarities between PH (complexity) and PSPACE

PH (complexity) and PSPACE have 7 things in common (in Unionpedia): Computational complexity theory, Descriptive complexity theory, NP (complexity), P (complexity), Quantum computing, Second-order logic, Turing machine.

Computational complexity theory

Computational complexity theory is a branch of the theory of computation in theoretical computer science that focuses on classifying computational problems according to their inherent difficulty, and relating those classes to each other.

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Descriptive complexity theory

Descriptive complexity is a branch of computational complexity theory and of finite model theory that characterizes complexity classes by the type of logic needed to express the languages in them.

Descriptive complexity theory and PH (complexity) · Descriptive complexity theory and PSPACE · See more »

NP (complexity)

In computational complexity theory, NP (for nondeterministic polynomial time) is a complexity class used to describe certain types of decision problems.

NP (complexity) and PH (complexity) · NP (complexity) and PSPACE · See more »

P (complexity)

In computational complexity theory, P, also known as PTIME or DTIME(nO(1)), is a fundamental complexity class.

P (complexity) and PH (complexity) · P (complexity) and PSPACE · See more »

Quantum computing

Quantum computing is computing using quantum-mechanical phenomena, such as superposition and entanglement.

PH (complexity) and Quantum computing · PSPACE and Quantum computing · See more »

Second-order logic

In logic and mathematics second-order logic is an extension of first-order logic, which itself is an extension of propositional logic.

PH (complexity) and Second-order logic · PSPACE and Second-order logic · See more »

Turing machine

A Turing machine is a mathematical model of computation that defines an abstract machine, which manipulates symbols on a strip of tape according to a table of rules.

PH (complexity) and Turing machine · PSPACE and Turing machine · See more »

The list above answers the following questions

What PH (complexity) and PSPACE have in common
What are the similarities between PH (complexity) and PSPACE

PH (complexity) and PSPACE Comparison

PH (complexity) has 22 relations, while PSPACE has 33. As they have in common 7, the Jaccard index is 12.73% = 7 / (22 + 33).

References

This article shows the relationship between PH (complexity) and PSPACE. To access each article from which the information was extracted, please visit:

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