Array ( [0] => Array ( [title] => L32A [link] => https://www.youtube.com/embed/AvvAj7279Xw ) [1] => Array ( [title] => L32B [link] => https://www.youtube.com/embed/mYWJJ8L2LaE ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - Lecture 32 | Stationary symmetry breaking bifurcation; Example: Semilinear elliptic equations