论文信息 - On non-linear differential equations of the second order: III. The equation $$\ddot y - k(1 - y^2 )\dot y + y = b \mu k cos (\mu t + \alpha )$$ for largek, and its generalizationsfor largek, and its generalizations - 字舞流文

On non-linear differential equations of the second order: III. The equation $$\ddot y - k(1 - y^2 )\dot y + y = b \mu k cos (\mu t + \alpha )$$ for largek, and its generalizationsfor largek, and its generalizations

J. E. Littlewood | J. Littlewood

[1] N. Levinson,et al. On The Existence of Periodic Solutions For Second Order Differential Equations with a Forcing Term , 1943 .