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内容説明 From the reviews: ?... In the past， more of the leading mathematicians proposed and solved problems than today， and there were problem departments in many journals. P-lya and Szego must have combed all of the large problem literature from about 1850 to 1925 for their material， and their collection of the best in analysis is a heritage of lasting value. The work is unashamedly dated. With few exceptions， all of its material comes from before 1925. We can judge its vintage by a brief look at the author indices (combined). Let’s start on the C’s: Cantor， Carath-odory， Carleman， Carlson， Catalan， Cauchy， Cayley， Ces-ro，... Or the L’s: Lacour， Lagrange， Laguerre， Laisant， Lambert， Landau， Laplace， Lasker， Laurent， Lebesgue， Legendre，... Omission is also information: Carlitz， Erd-s， Moser， etc.?Bull.Americ.Math.Soc.