Results 11 to 20 of about 34 (33)
Solvability of Nth Order Linear Boundary Value Problems
International Journal of Differential Equations, Volume 2015, Issue 1, 2015., 2015 This paper presents a method that provides necessary and sufficient conditions for the existence of solutions of nth order linear boundary value problems. The method is based on the recursive application of a linear integral operator to some functions and the comparison of the result with these same functions.
P. Almenar, L. Jódar, Peiguang Wang
wiley +1 more source
Regularity and Chaos in the Hydrogen Atom Highly Excited with a Strong Magnetic Field
Mathematical Problems in Engineering, Volume 2014, Issue 1, 2014., 2014 The effects of the relativistic corrections on the energy spectra are analyzed. Effective simulations based on manipulations of operators in the Sturmian basis are developed. Discrete and continuous energy spectra of a hydrogen atom with realistic nucleus mass in a strong magnetic field are computed.
M. Amdouni, H. Eleuch, Yan-Jun Liu
wiley +1 more source
Symplectic difference systems: oscillation theory and hyperbolic Prüfer transformation
Abstract and Applied Analysis, Volume 2004, Issue 4, Page 285-294, 2004., 2004 We present basic methods of oscillation theory of symplectic difference systems (SDSs). A particular attention is devoted to the variational principle and to the transformation method. Hyperbolic Prüfer transformation for SDSs is established.
Ondřej Došlý
wiley +1 more source
Sturmian theorems for systems of differential equations
International Journal of Mathematics and Mathematical Sciences, Volume 3, Issue 1, Page 177-184, 1980., 1979 Two Sturmian theorems are established for second order linear nonhomogeneous systems of two differential equations with the use of a maximum principle. The results also hold for homogeneous systems. For illustration, an example is given.
C. Y. Chan
wiley +1 more source
Some of the next articles are maybe not open access.
Limit values of the recurrence quotient of Sturmian sequences
Theoretical Computer Science, 1999Julien Cassaigne
exaly
Rich, Sturmian, and trapezoidal words
Theoretical Computer Science, 2008Aldo De Luca, Amy Glen, Luca Q Zamboni
exaly
On the structure of bispecial Sturmian words
Journal of Computer and System Sciences, 2014Gabriele Fici
exaly
A Sturmian theorem for recessive solutions of linear Hamiltonian difference systems
Applied Mathematics Letters, 1999Martin Bohner, O Došlý
exaly