3 problems

Let $\Omega$ be the domain, let $d$ be the distance to $\partial\Omega$, and let $\overline{\lambda}(\tau)$ be the maximal principal eigenvalue obtained by replacing the infimum in…

Let $\Omega$ be the domain, let $d$ be the distance to $\partial\Omega$, and let $v_\tau$ denote the vector field minimizing the principal eigenvalue under the drift constraint of…

Let $\Omega\in\mathcal{O}$ be a general domain, let $d$ denote the distance to $\partial\Omega$, and let $v_\tau$ be the minimizing vector fields associated with the drift optimiza…