A Fourier Continuation Method for the Solution of Elliptic Eigenvalue Problems in General Domains

Figure 6

The first 5 eigenfunctions (modes of vibration) of the smoothed L-shaped membrane (cf. Figure  1 in [2]): (a) ; (b) ; (c) ; (d) ; (e) .

(a)

(b)

(c)

(d)

(e)