Article. 10 pages. Дополнительные сведения о публикации
отсутствуют.
In this exposition, we will present the de nition of martingales using measure theory and an application of it to solve the ABRACADABRA problem, which involves computing the expected time of the rst appearance of a patte in a random sequence of letters.
In this exposition, we will present the de nition of martingales using measure theory and an application of it to solve the ABRACADABRA problem, which involves computing the expected time of the rst appearance of a patte in a random sequence of letters.