1990
DOI: 10.1007/bf01039228
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Overexcitation of modes in an anisotropic earth-ionosphere waveguide on transequatorial paths in the presence of two close degeneracy points

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Cited by 10 publications
(17 citation statements)
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“…Adiabatic modes, generally speaking, differ on both sides of the point x = 0 and the subscript ± indicates the side, where the mode is constructed. We note that the leading term ( 14) depends on non-perturbed eigenfunctions ϕ j , see (10), and perturbed eigenvalues βj . The Γ -normalization factor N j (x) and the diagonal conversion coefficient S jj (x) are defined as…”
Section: B Main Resultsmentioning
confidence: 99%
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“…Adiabatic modes, generally speaking, differ on both sides of the point x = 0 and the subscript ± indicates the side, where the mode is constructed. We note that the leading term ( 14) depends on non-perturbed eigenfunctions ϕ j , see (10), and perturbed eigenvalues βj . The Γ -normalization factor N j (x) and the diagonal conversion coefficient S jj (x) are defined as…”
Section: B Main Resultsmentioning
confidence: 99%
“…At first time, the equation ( 6) was applied to an anisotropic electromagnetic waveguide in the monography [9], where the operator K was a matrix differential operator with respect to variables transverse to x. Equation ( 6) has been already used by the some of us in several applied problems dealing with asymptotics near degeneracy points of different types: for Maxwell equations in the Earth-ionosphere waveguide [10] (with a non-invertible Γ), Maxwell equations in curvilinear coordinates near the smooth boundary of the convex body [11], the Timoshenko beam equations [12], and elastic wave equations [13]. It was also applied to investigation of liquid crystals [14].…”
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confidence: 99%
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“…This coordinate system has been applied recently in electromagnetic problems in [21,22]. Then we rewrite the Maxwell equation in matrix form by analogy with [23]. We consider an etalon cylindrical problem to find an anzats and an asymptotic parameter.…”
Section: Introductionmentioning
confidence: 99%
“…Landau and Zener (1932) pioneered solving the problem of non-adiabatic transitions near the point of intersection of molecular terrns, see [5]. Later interxtions of electromagnetic waves in magnetoionic plasma [GI, interaction of acoustic modes in liquid layers [7] tunneling of electrons in crystal [8], transformation of VLF waves in the Earthionosphere waveguides [9], and interaction of body [la] and surface E131 elastic waves in solid were described. Similar problems were approached also by researches having a piire mathematical motivations, e. g. [IO,111. We start with the time-harmonic case where we employ the technique similar to the one used in [9] in radio physics and borrowed in its essence Gom Quantum Mechanics [5].…”
Section: Introductionmentioning
confidence: 99%