2014/02/13 by Alexander G. Ramm, Ramm, Alexander G.
Mathematics · Physics and Astronomy · #FOS: Physical sciences #Mathematical Physics (math-ph) #math-ph #math.MP
paper · pdf · doi:10.48550/arxiv.1402.3106
arxiv created 2014/02/13 · arxiv updated 2014/02/14
A novel approach to an old symmetry problem is developed. A new proof is given for the following symmetry problem, studied earlier.