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What (who) is upper semimartingale - definition
TYPE OF STOCHASTIC PROCESS
Special semimartingale
Semimartingale
In probability theory, a real valued stochastic process X is called a semimartingale if it can be decomposed as the sum of a local martingale and a càdlàg adapted finite-variation process. Semimartingales are "good integrators", forming the largest class of processes with respect to which the Itô integral and the Stratonovich integral can be defined.
Upper school
IN ENGLAND, SCHOOLS WITHIN SECONDARY EDUCATION; SECTION OF A LARGER SCHOOL
Upper School; Upper schools
Upper schools in the UK are usually schools within secondary education. Outside England, the term normally refers to a section of a larger school.
upper school
IN ENGLAND, SCHOOLS WITHIN SECONDARY EDUCATION; SECTION OF A LARGER SCHOOL
Upper School; Upper schools
¦ noun
1. (in the UK) a secondary school for children aged from about fourteen upwards.
2. the section of a school comprising or catering for the older pupils.
Wikipedia
Semimartingale
In probability theory, a real valued stochastic process X is called a semimartingale if it can be decomposed as the sum of a local martingale and a càdlàg adapted finite-variation process. Semimartingales are "good integrators", forming the largest class of processes with respect to which the Itô integral and the Stratonovich integral can be defined.
The class of semimartingales is quite large (including, for example, all continuously differentiable processes, Brownian motion and Poisson processes). Submartingales and supermartingales together represent a subset of the semimartingales.
