Stochastic differential equations (SDEs) are widely used in finance, physics, and engineering and have recently played an important role in image generation through artificial intelligence. In this seminar, we will learn the basic concepts of SDEs. In particular, we will define stochastic integrals based on Brownian motions and martingales, and use the Itô formula to compute solutions to several SDEs. Furthermore, we will derive semigroups through the Markov property of solutions to SDEs and investigate invariant measures for the semigroups. Finally, we will explore the relation between partial differential equations (PDEs) and SDEs and study the recent theory for constructing a solution to the SDE from a partial differential operator.
Stochastic differential equations (SDEs) are widely used in finance, physics, and engineering and have recently played an important role in image generation through artificial intelligence. In this seminar, we will learn the basic concepts of SDEs. In particular, we will define stochastic integrals based on Brownian motions and martingales, and use the Itô formula to compute solutions to several SDEs. Furthermore, we will derive semigroups through the Markov property of solutions to SDEs and investigate invariant measures for the semigroups. Finally, we will explore the relation between partial differential equations (PDEs) and SDEs and study the recent theory for constructing a solution to the SDE from a partial differential operator.