ONE main problem discussed in this tract is the following: let f(x) and K(x, ξ) be known functions, it is required to determine the function u(x) so as to satisfy the equation (Cambridge Tracts in ...
ITNTEGRAL equations are not a quite modern invention, because a particular example was solved by Abel so far back as 1826. But an immense impetus was given to the subject by the papers of Volterra and ...
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