Author: Graef, John R.

Padhi, Seshadev; Graef, John R.: Positive solutions of a fourth-order differential equation with integral boundary conditions. (English). Mathematica Bohemica, vol. 148 (2023), issue 4, pp. 583-601
Graef, John R.; Heidarkhani, Shapour; Kong, Lingju; Moradi, Shahin: Existence results for impulsive fractional differential equations with $p$-Laplacian via variational methods. (English). Mathematica Bohemica, vol. 147 (2022), issue 1, pp. 95-112
Graef, John R.; Beldjerd, Djamila; Remili, Moussadek: On stability, boundedness, and square integrability of solutions of certain third order neutral differential equations. (English). Mathematica Bohemica, vol. 147 (2022), issue 3, pp. 285-299
Graef, John R.; Kong, Lingju; Kong, Qingkai; Yang, Bo: Second order boundary value problems with sign-changing nonlinearities and nonhomogeneous boundary conditions. (English). Mathematica Bohemica, vol. 136 (2011), issue 4, pp. 337-356
Graef, John R.; Yang, Bo; Zhang, B. G.: Existence of nonoscillatory and oscillatory solutions of neutral differential equations with positive and negative coefficients. (English). Mathematica Bohemica, vol. 124 (1999), issue 1, pp. 87-102

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