A spectral relationship is set up, using the generalized potential theory m
ethod for an integral operator generated by a symmetric difference kernel i
n the form of a Macdonald function in the semi-infinite intervals (-infinit
y, -a(j)), (a(j), infinity), j = 1, 2,..., l, that contain the spheriodal w
ave functions. On the basis of the results obtained, a closed form solution
of the axi-symmetric contact problem is constructed for a finite system of
impressing stamps of angular form in a plane into a half-space occupying t
he domain -infinity < x < infinity, \y\ greater than or equal to a(j), z =
0, j = 1, 2,..., l. Many different cases are discussed in this work. (C) 20
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