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Graef John R.; Kong Lingju; Minhós Feliz Manuel: Higher order functional boundary value problems: existence and location results. In: Acta scientiarum mathematicarum, (77) 1-2. pp. 87-100. (2011)
Graef John R.; Yang Bo; Zhang Bing Gen: A note on the existence of oscillatory solutions of higher order neutral differential equations. In: Acta scientiarum mathematicarum, (66) 1-2. pp. 63-70. (2000)
Tunç Ercan; Şahin Serpil; Graef John R.; Pinelas Sandra: New oscillation criteria for third-order differential equations with bounded and unbounded neutral coefficients. (2021)
Malti Ahmed Ilyes N.; Benchohra Mouffak; Graef John R.; Lazreg Jamal Eddine: Impulsive boundary value problems for nonlinear implicit Caputo-exponential type fractional differential equations. (2020)
Malti Ahmed Ilyes N.; Benchohra Mouffak; Graef John R.; Lazreg Jamal Eddine: Impulsive boundary value problems for nonlinear implicit Caputo-exponential type fractional differential equations. (2020)
Grace Said R.; Graef John R.: Oscillation of a perturbed nonlinear third order functional differential equation. (2018)
Grace Said R.; Graef John R.; Tunç Ercan: Asymptotic behavior of solutions of forced fractional differential equations. (2016)
Grace Said R.; Graef John R.; Tunç Ercan: Asymptotic behavior of solutions of forced fractional differential equations. (2016)
Baliki Abdessalam; Benchohra Mouffak; Graef John R.: Global existence and stability for second order functional evolution equations with infinite delay. (2016)
Grace Said R.; Graef John R.; Tunç Ercan: Oscillatory behavior of a third-order neutral dynamic equation with distributed delays. (2016)
Graef John R.; Kong Lingju; Kong Qingkai; Wang Min: Existence and uniqueness of solutions for a fractional boundary value problem with Dirichlet boundary condition. (2013)
Grace Said R.; Graef John R.; Panigrahi Saroj; Tunç Ercan: On the oscillatory behavior of even order neutral delay dynamic equations on time-scales. (2012)
Graef John R.; Lingju Kong; Qingkai Kong; James S. W. Wong: Higher order multi-point boundary value problems with sign-changing nonlinearities and nonhomogeneous boundary conditions. (2010)
Benchohra Mouffak; Graef John R.; Mostefai Fatima-Zohra: Weak solutions for nonlinear fractional differential equations on reflexive Banach spaces. (2010)
Graef John R.; Ouahab Abdelghani: Structure of solutions sets and a continuous version of Filippov’s theorem for first order impulsive differential inclusions with periodic conditions. (2009)
Graef John R.; Yang Bo: Existence and nonexistence of positive solutions of a nonlinear third order boundary value problem. (2008)
Graef John R.; Ouahab Abdelghani: First order impulsive differential inclusions with periodic conditions. (2008)
Graef John R.; Qian Chuanxi; Yang Bo: Multiple positive solutions of a boundary value problem for ordinary differential equations. (2004)
Graef John R.; Savithri R.; Thandapani Ethiraju: Oscillation of first order neutral delay differential equations. (2004)
Benchohra Mouffak; Graef John R.; Henderson Johnny; Ntouyas Sotiris K.: Nonresonance impulsive higher order functional nonconvex-valued differential inclusions. (2002)
Graef John R.; Karsai János: On the oscillation of impulsively damped halflinear oscillators. (2000)
