variation problem On Solvability of Certain Classes of Irregular the Second Order Variation Problems Authors: Pokornyi Y. V., Bakhtina Z. I., Ischenko A. S. In the work the irregular model of the Stiltjes string on segment [0, ℓ] with boundary conditions u(0) = u(ℓ) = 0 is discussed. The solvability conditions of the mentioned problem are described. Read more about On Solvability of Certain Classes of Irregular the Second Order Variation Problems
