Geodesic
Conjugacy criteria for second order linear difference equations
Archivum mathematicum, Tome 34 (1998) no. 2, pp. 301-310 Cet article a éte moissonné depuis la source Czech Digital Mathematics Library

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We establish conditions which guarantee that the second order difference equation \[\Delta ^2x_k+p_k x_{k+1}=0\] possesses a nontrivial solution with at least two generalized zero points in a given discrete interval
We establish conditions which guarantee that the second order difference equation \[\Delta ^2x_k+p_k x_{k+1}=0\] possesses a nontrivial solution with at least two generalized zero points in a given discrete interval
Classification : 39A10, 39A12
Keywords: Discrete conjugacy criteria; discrete Riccati equation; phase function; generalized zero points 
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Došlý, Ondřej; Řehák, Pavel. Conjugacy criteria for second order linear difference equations. Archivum mathematicum, Tome 34 (1998) no. 2, pp. 301-310. http://geodesic.mathdoc.fr/item/ARM_1998_34_2_a7/

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