UPPER AND LOWER BOUNDS FOR CRITICAL LAPLACIAN AND CRITICAL SIZE OF SOME FINITE ELLIPTICAL CYLINDERS
Ron T. Ackroyd, J.M. Ball · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1957
lower bounds for the critical Laplacian and the critical size of an infinite elliptical cylinder is extended in this report to include some finite elliptical cylinders. Fairly close upper and lower bounds for thc critical Laplacian of reflected elliptical cylinders of finite length can be obtained by virtually no more work than is required to read a chart. (auth)