✦ LIBER ✦

The existence of the second fixed point: A correction to “periodic solutions of x″ + f(x, t) = 0 via the Poincaré-Birkhoff theorem”

✍ Scribed by Howard Jacobowitz

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Periodic solutions of x′' + f(x, t) = 0

✍ Howard Jacobowitz 📂 Article 📅 1976 🏛 Elsevier Science 🌐 English ⚖ 969 KB

On the number of 2π periodic solutions f

✍ Manuel A del Pino; Raúl F Manásevich; Alejandro Murua 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 791 KB