List of computability and complexity topics
This is a list of computability and complexity topics, by Wikipedia page.
Computability theory is the part of the theory of computation that deals with what can be computed, in principle. Computational complexity theory deals with how hard computations are, in quantitative terms, both with upper bounds (algorithms whose complexity in the worst cases, as use of computing resources, can be estimated), and from below (proofs that no procedure to carry out some task can be very fast).
For more abstract foundational matters, see the list of mathematical logic topics. See also list of algorithms, list of algorithm general topics.
- Lookup table
- History of computers
- Multiplication algorithm
- Division by two
- Exponentiating by squaring
- Addition chain
- Presburger arithmetic
Computability theory: models of computation
- Arithmetic circuits
- Algorithm
- Finite state automaton
- Pushdown automaton
- Büchi automaton
- Chomsky hierarchy
- Register machine
- Stack machine
- Petri net
- Post machine
- Rewriting
- Star height
- Cellular automaton
- Turing machine
- Lambda calculus
- Combinatory logic
- Parallel computing
- Flynn's taxonomy
- Quantum computer
- Church-Turing thesis
- Entscheidungsproblem
- Halting problem
- Post correspondence problem
- Decidable language
- Word problem for groups
- Wang tile
- Penrose tiling
Definability questions
- Computable number
- Definable number
- Halting probability
- Algorithmic information theory
- Algorithmic probability
- Data compression
- Advice (complexity)
- Amortized analysis
- Arthur–Merlin protocol
- Best and worst cases
- Busy beaver
- Circuit complexity
- Constructible function
- Cook's theorem
- Exponential time
- Function problem
- Linear time
- Linear speedup theorem
- Natural proof
- Polynomial time
- Polynomial-time many-one reduction
- Polynomial-time Turing reduction
- Savitch's theorem
- Space hierarchy theorem
- Speed Prior
- Speedup theorem
- Subquadratic time
- Time hierarchy theorem
Complexity classes
See the list of complexity classes
Named problems
- Clique problem
- Hamiltonian cycle problem
- Hamiltonian path problem
- Integer factorization
- Knapsack problem
- Satisfiability problem
- Subset sum problem
- 3SUM
- Traveling salesman problem
- Vertex cover problem
- One way function
- Set cover problem
- Independent set problem
Extensions
- Probabilistic algorithm, randomized algorithm
- Las Vegas algorithm
- Non-determinism
- Non-deterministic Turing machine
- Interactive computation
- Interactive proof system
- Probabilistic Turing Machine
- Approximation algorithm
- Simulated annealing
- Ant colony algorithm
- Game semantics
- Generalized game
- Multiple-agent system
- Parameterized complexity
- Process calculi
- Hypercomputation
- Real computation
- Computable analysis