References

1

V. M. Alekseev, V. M. Tikhomirov, and S. V. Fomin. Optimal Control. Plenum Publishing Corporation, New York, NY, 1987.

2

J. B. Conway. A Course in Functional Analysis. Springer-Verlag, New York, NY, 1985.

3

J. H. Maddocks. Restricted quadratic forms and their application to bifurcation and stability in constrained variational principles. SIAM J. Math. Anal., 16:47-68, 1985.

4

J. H. Maddocks. Stability and folds. Arch. Rat. Mech. Anal., 99:301-328, 1987.

5

T. I. Vogel. On liquid bridges between spheres. to appear.

6

T. I. Vogel. On constrained extrema. Pac. J. Math., to appear.