 Markov operator

A positive linear operator on bounded measurable functions that preserves the constant function one. A Markov semigroup is a time-indexed family of such operators with the semigroup law.

A **Markov operator** is a mathematical construct that is used primarily in the context of Markov processes, which are stochastic processes characterized by their memoryless property. In simple terms, a Markov operator is a linear operator that describes the evolution of probability distributions over states in a Markov chain or Markov process.