Zobrazeno 1 - 4
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pro vyhledávání: '"I. E. Kougias"'
Autor:
D. N. Georgiou, I. E. Kougias
Publikováno v:
International Journal of Mathematics and Mathematical Sciences, Vol 2004, Iss 15, Pp 799-805 (2004)
Existence and uniqueness theorems are proved for Cauchy problems of second-order fuzzy differential equations.
Externí odkaz:
https://doaj.org/article/1952d3a1e5444f7d9a71fc38d742f640
Autor:
D. N. Georgiou, I. E. Kougias
Publikováno v:
International Journal of Mathematics and Mathematical Sciences, Vol 31, Iss 2, Pp 109-114 (2002)
We study conditions under which the solutions of a fuzzy integral equation are bounded.
Externí odkaz:
https://doaj.org/article/0ff376d1cd254e98a2679390d4526ee1
Autor:
I. E. Kougias
Publikováno v:
International Journal of Mathematics and Mathematical Sciences, Vol 16, Iss 4, Pp 791-794 (1993)
For a large class of operators A, not necessarily local, it is proved that the Cauchy problem of the Schrödinger equation: −d2f(z)dz2+Af(z)=s2f(z), f(0)=0, f′(0)=1 possesses a unique solution in the Hilbert (H2(Δ)) and Banach (H1(Δ)) spaces of
Externí odkaz:
https://doaj.org/article/37eac53aabce46859732df613b2ba67f
Autor:
S. Louvros, I. E. Kougias
Publikováno v:
Applied Mathematics and Computation. 216:2457-2462
Exact analytic solutions of Schrodinger linear partial differential equations are obtained. Moreover, the cubic nonlinear Schrodinger equation is treated with the use of a well-known functional analytic method and the existence of convergent power se