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Quadratic functionals with a singular end point. (English) Zbl 0064.35401

Full Text: DOI
[1] E. L. Ince, Ordinary Differential Equations, Dover Publications, New York, 1944. · Zbl 0063.02971
[2] Walter Leighton, Principal quadratic functionals, Trans. Amer. Math. Soc. 67 (1949), 253 – 274. · Zbl 0041.22404
[3] Marston Morse, The calculus of variations in the large, American Mathematical Society Colloquium Publications, vol. 18, American Mathematical Society, Providence, RI, 1996. Reprint of the 1932 original. · Zbl 0011.02802
[4] Marston Morse and Walter Leighton, Singular quadratic functionals, Trans. Amer. Math. Soc. 40 (1936), no. 2, 252 – 286. · Zbl 0015.02701
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