4 problems
Consider semilinear elliptic equations … with and , under the natural structural conditions on considered by Berestycki and Lions. A radi…
Let a four-body system be a quantum-mechanical system of four constituents, and call a subsystem stable if it is bound. A four-body system has a stable three-body subsystem when at…
Let be the nonlinearity in the radial equation … that has precisely nodes. This conjecture concerns the nodal characterization of bound states and asserts uniqueness with…
Bound-state emergence conjecture. At any integer there exists a physical bound state which emerges from the continuum in the positive-parameter vicinity of the origin ,…