REFERENCES

VOLUME I

[1] Ahlfors, L., "Complex Analysis." McGraw-Hill, New York, 1953.

[2] Bachmarm, K, "Transfimte Zahlen" (Ergebnisse der Math., Neue Folge, Heft 1).

Springer, Berlin, 1955.

[3] Bourbaki, N., "Elements de Mathematique," Livre I, "Theorie des Ensembles"
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[4] Bourbaki, N., "Elements de Mathematique," Livre II, "Algebre," Chap. II (Actual.

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[5] Bourbaki, N., "Elements de Mathematique,'* Livre III, "Topologie generate"
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[6] Bourbaki, N., "Elements de Mathematique," Livre V, "Espaces vectoriels topo-
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[8] Cartan, H., "Theorie elementaire des fonctions analytiques." Hermann, Paris, 1961,
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[12] Ince, E., "Ordinary Differential Equations," Dover Publications, New York, 1949.
[13] Jacobson, N., "Lectures in Abstract Algebra," Vol. II, "Linear Algebra." Van

Nostrand, Princeton, New Jersey, 1953.
[14] Kamke, E., " DifTerentialgleichungen reeller Funktionen." Akad. Verlag, Leipzig,

1930.

[15] Kelley, J., "General Topology." Van Nostrand, Princeton, New Jersey, 1955.
[16] Landau, E., "Foundations of Analysis." Chelsea, New York, 1951.
[17] Springer, G., "Introduction to Riemann Surfaces." Addison-Wesley, Reading,

Massachusetts, 1957.
[18] Weil, A., "Introduction a 1'etude des varietes kahleriennes" (Actual. Scient. Ind.,

No. 1267). Hermann, Paris, 1958.
[19] Weyl, H., "Die Idee der Riemannschen Flache," 3rd ed. Teubner, Stuttgart, 1955.

444 unbounded self-adjoint operator A