منابع مشابه
Generalized finite moments and Liouville-Green approximations
The Liouville–Green approximation for the differential equation z̈(t) + f (t)z(t) = 0 is exhaustively studied. New moments of f – and not only the first and second – are proposed, allowing asymptotic formulae with explicit estimates for the error functions. The recessive and Dominant character of the fundamental system of solutions is clear. Our study includes the pointwise condition limt→∞ t2f ...
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ژورنال
عنوان ژورنال: The Trumpeter
سال: 2019
ISSN: 1705-9429
DOI: 10.7202/1060954ar