4 problems

Let $D$ be a diagonal matrix with distinct diagonal entries, and consider the quasi-projected gradient flow determined by $D$. An equilibrium point is called stable when it is stab…

Let $D$ be the diagonal matrix defining the quasi-projected gradient flow on the relevant iso-spectral surface. Generic convergence conjecture. The flow generically converges to a…

Consider the generalized Jacobi spectral problem … Let $u_n^\delta$ and $w_n$ have the power-series expansion in $\alpha$ … … where $k$ is an arbitrary nonzero constant and $I$ is…

Consider the isospectral ordinary differential equation discussed in the paper, with solutions initialized at real symmetric matrices, and let a block diagonal matrix mean one whos…