[3086] Sur L'équation $$\begin{array}{l} \frac{{d^2 y}}{{dx^2 }} + \left[ {2\nu \frac{{k^2 sn x cn x}}{{dn x}} + 2\nu _1 \frac{{sn x dn x}}{{cn x}} - 2\nu _2 \frac{{cn x dn x}}{{sn x}}} \right]\frac{{dy}}{{dx}} = \\ = \left[ {\frac{I}{{sn^2 x}}(n_3 - \nu _2 )(n_3 + \nu _2 + 1) + \frac{{dn^2 x}}{{cn^2 x}}(n_2 - \nu _1 )(n_2 + \nu _1 + 1) + } \right. \\ \left. {\frac{{k^2 cn^2 x}}{{dn^2 x}}(n_1 - \nu )(n_1 + \nu + 1) + k^2 sn^2 x(n + \nu + \nu _1 + \nu _2 )(n - \nu - \nu _1 - \nu _2 + 1) + h} \right]y \\ \end{array}$$

[3087] Sur les équations intégro-différentielles et leurs applications

[3088] On the structure of purely non-deterministic stochastic processes

[3089] Arithmetic means and the Tauberian constant 474541

[3090] Notiz über eine Methode zur numerischen Umkehrung gewisser Transcendenten