[646] Gauss’s Theorem and the self-adjointness of Schrödinger operators

[647] On non-linear differential equations of the second order: IV. The general equation $$\ddot y + kf\left( y \right)\dot y + g\left( y \right) = bkp\left( \varphi \right)$$ , φ=$t$+α, φ=$t$+α

[648] On the$p$-typical curves in Quillen's$K$-theory

[649] Théorie des groupes fuchsiens

[650] On the closure of characters and the zeros of entire functions