GLOBAL WELL-POSEDNESS AND REGULARITY OF STOCHASTIC 3D BURGERS EQUATION WITH MULTIPLICATIVE NOISE.

By utilizing the so-called Doss--Sussman transformation, we link our stochastic 3D Burgers equation with linear multiplicative noise to a random 3D Burger equation. With the help of techniques from partial differential equations (PDEs) and probability, we establish the global wellposedness of stochastic 3D Burgers with the diffusion coefficient being constant. Next, by developing a solution which is orthogonal with the gradient of coefficient of the noise, we extend the global well-posedness to a more general case in which the diffusion coefficient is spatial dependent, i.e., it is a function of the spatial variable. Our results and methodology pave a way to extend some regularity results of stochastic 1D Burgers equation to stochastic 3D Burgers equations. [ABSTRACT FROM AUTHOR]