Codes without Commas.
نویسندگان
چکیده
'M. Kac, "On Some Connections between Probability Theory and Differential and Integral Equations," Proc. Second Berkeley Symposium Math. Statistics and Probability, pp. 189-215, 1951. 2 D. Ray, "On Spectra of Second-Order Differential Operators," Trans. Am. Math. Soc. 77, 299-321, 1954. 3R. Courant and D. Hilbert, Methods of Mathematical Physics, Vol. 1 (New York: Interscience Publishers, Inc., 1953).
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عنوان ژورنال:
- Proceedings of the National Academy of Sciences of the United States of America
دوره 43 5 شماره
صفحات -
تاریخ انتشار 1957