2 problems

Let $A$ be a generic matrix, let $u$ be the diagonal irregular-type parameter, and let $S_+(u,A,\varepsilon)$ be the upper triangular Stokes matrix with $S_-=S_+^\dagger$. Write…

Let $u=\operatorname{diag}(u_1,\dots,u_n)$ and let $A$ be the residue matrix defining the spectral curve … Let $Z(\gamma)=\oint_\gamma\omega$ denote the period of the canonical one…