scholarly journals On the procedure for the series solution of certain general-order homogeneous linear differential equations via the complex integration method

2014 ◽  
Vol 2 ◽  
pp. 155-171 ◽  
Author(s):  
W. Robin
Keyword(s):  
Differential Equations ◽  
Series Solution ◽  
Integration Method ◽  
Linear Differential Equations ◽  
General Order ◽  
Complex Integration ◽  
Linear Differential ◽  
Homogeneous Linear

scholarly journals On the complex oscillation for a class of homogeneous linear differential equations

2000 ◽  
Vol 43 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Gao Shi-An
Keyword(s):  
Differential Equations ◽  
Open Problem ◽  
Linear Differential Equations ◽  
Unique Case ◽  
Linearly Independent ◽  
Complex Oscillation ◽  
Linear Differential ◽  
Dominant Condition ◽  
Homogeneous Linear ◽  
Independent Zero

AbstractUsing a combined dominant condition, we obtain general results concerning the complex oscillation for a class of homogeneous linear differential equations w(k) + + … + A1w′ + (A0 + A)w = 0 with k ≥ 2, which has been investigated by many authors. In particular, we discover that there exists a unique case that possesses k linearly independent zero-free solutions for these equations, and we resolve an open problem and simultaneously answer a question of Bank.

scholarly journals Space-time caustics

1986 ◽  
Vol 9 (3) ◽  
pp. 531-540 ◽  
Author(s):  
Arthur D. Gorman
Keyword(s):  
Wave Propagation ◽  
Differential Equations ◽  
Series Solution ◽  
Asymptotic Series ◽  
Inhomogeneous Media ◽  
Linear Differential Equations ◽  
Spatially Inhomogeneous ◽  
Asymptotic Series Solution ◽  
Linear Differential

The Lagrange manifold (WKB) formalism enables the determination of the asymptotic series solution of linear differential equations modelling wave propagation in spatially inhomogeneous media at caustic (turning) points. Here the formalism is adapted to determine a class of asymptotic solutions at caustic points for those equations modelling wave propagation in media with both spatial and temporal inhomogeneities. The analogous Schrodinger equation is also considered.

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