The simple definition of a mean is that of a numeric quantity which represents the center of a collection of numbers. Here the trick lies in defining the exact type of numeric collection, as beyond ...

SIAM Journal on Applied Mathematics, Vol. 50, No. 3 (Jun., 1990), pp. 649-666 (18 pages) A model for the description of the geometry in multiphase mechanics is derived and studied. Equations for the ...