Sumários

Stochastic integrals

28 Setembro 2018, 12:00 João Guerra

Stochastic integrals: motivation, definition of stochastic integrals for simple processes and definition of stochastic integrals for processes in L^2_{a} (adapted processes in L^2). 

Examples and exercises.


Martingales in continuous time and Brownian motion

26 Setembro 2018, 11:30 João Guerra

Martingales in discrete time: 

Examples: Double betting system, the discounted price of an asset as a martingale in the risk-neutral probability measure. 

Martingales in continuous time: definition, examples and exercises. 

Processes defined as functions of the Brownian motion. 


Brownian motion. Martingales in discrete time

21 Setembro 2018, 12:00 João Guerra

Brownian motion: Basic properties. 

Conditional expectation: Basic properties. 

Martingales in discrete time: definition and example. 


Presentation of the course. Introduction to Brownian motion

19 Setembro 2018, 11:30 João Guerra

Presentation of the programme, assessment, bibliography. 

Brief general introduction to Brownian motion and stochastic calculus.

Brownian motion: brief history, definition and relationship with random walk. 

Brownian motion with drift: definition.