Geodesic
On a necessary condition of at least one quadratic functional with an integral Stieltjes
Izvestiya of Saratov University. Mathematics. Mechanics. Informatics, Tome 12 (2012) no. 1, pp. 52-55 
S. A. Shabrov. On a necessary condition of at least one quadratic functional with an integral Stieltjes. Izvestiya of Saratov University. Mathematics. Mechanics. Informatics, Tome 12 (2012) no. 1, pp. 52-55. http://geodesic.mathdoc.fr/item/ISU_2012_12_1_a7/
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     title = {On a~necessary condition of at least one quadratic functional with an integral {Stieltjes}},
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Voir la notice de l'article provenant de la source Math-Net.Ru

In this paper is obtained a necessary condition for an extremum of a quadratic functional with a Stieltjes integral.

[1] Pokornyi Yu. V., Bakhtina Zh. I., Zvereva M. B., Shabrov S. A., Ostsillyatsionnyi metod Shturma v spektralnykh zadachakh, Fizmatlit, M., 2009, 192 pp. | Zbl

[2] Pokornyi Yu. V., “Integral Stiltesa i proizvodnye po mere v obyknovennykh differentsialnykh uravneniyakh”, Dokl. AN, 364:2 (1999), 167–169 | MR

[3] Shabrov S. A., “O $\mu$-regulyarizatsii funktsii s konechnym izmeneniem”, Sbornik statei aspirantov i studentov matematicheskogo fakulteta Voronezh. gos. un-ta, Voronezh, 1999, 166–169