John R. Graef

Overview

Best Publications

• Global dynamics of a SEIR model with varying total population size.

  Unknown

  727
  Citations

• Impulsive differential inclusions : a fixed point approach

  John R. Graef;Johnny Henderson;Abdelghani Ouahab

  126
  Citations

• Positive solutions for a class of higher order boundary value problems with fractional q-derivatives

  Unknown

  126
  Citations

• On the generalized Liénard equation with negative damping

  Unknown

  119
  Citations

• Existence, multiplicity, and dependence on a parameter for a periodic boundary value problem

  Unknown

  118
  Citations

• A Variational Approach to a Kirchhoff-type Problem Involving Two Parameters

  Unknown

  97
  Citations

• A three point boundary value problem for nonlinear fourth order differential equations

  Unknown

  96
  Citations

• On the oscillation of third order neutral delay dynamic equations on time scales

  Said R. Grace;John R. Graef;Mohamed A. El-Beltagy

  84
  Citations

• Existnence and nonexistence of positive solutions of fourth order nonlinear boundary value problems

  John.R Graef;Bo Yang

  82
  Citations

• Positive solutions to a multi-point higher order boundary value problem

  Unknown

  82
  Citations

• Oscillation of Impulsive Neutral Delay Differential Equations

  Unknown

  67
  Citations

• A periodic boundary value problem with vanishing Green's function

  Unknown

  65
  Citations

• Initial value problem for hybrid $$\psi $$-Hilfer fractional implicit differential equations

  Unknown

  60
  Citations

• On a nonlinear boundary value problem for fourth order equations

  Unknown

  54
  Citations

• Oscillation and comparison theorems for half-linear second-order difference equations

  Unknown

  53
  Citations

• Multiple symmetric positive solutions of a class of boundary value problems for higher order ordinary differential equations

  Unknown

  52
  Citations

• Oscillation theorems for fourth order functional differential equations

  Said R. Grace;Ravi P. Agarwal;John R. Graef

  44
  Citations

• Asymptotic behavior of solutions of a second order nonlinear differential equation

  Unknown

  38
  Citations

• Oscillatory and asymptotic behavior of a third-order nonlinear neutral differential equation

  John R. Graef;Ercan Tunҫ;Said R. Grace

  36
  Citations

• WEAK SOLUTIONS FOR NONLINEAR FRACTIONAL DIFFERENTIAL EQUATIONS ON REFLEXIVE BANACH SPACES

  Mouffak Benchohra;John R. Graef;Fatima-Zohra Mostefai

  27
  Citations

• Existence and uniqueness of solutions for a fractional boundary value problem on a graph

  Unknown

  27
  Citations

• Topological Methods for Differential Equations and Inclusions

  John R. Graef;Johnny Henderson;Abdelghani Ouahab

  26
  Citations

• Oscillatory behavior of second order nonlinear differential equations with a sublinear neutral term

  Said R. Grace;John R. Graef

  25
  Citations

• Boundary Value Problems for Nonlinear Implicit Caputo–Hadamard-Type Fractional Differential Equations with Impulses

  Mouffak Benchohra;Mouffak Benchohra;Soufyane Bouriah;John R. Graef

  24
  Citations

• Boundary Value Problem for Fractional Order Generalized Hilfer-Type Fractional Derivative with Non-Instantaneous Impulses

  Abdelkrim Salim;Mouffak Benchohra;John R. Graef;Jamal Eddine Lazreg

  24
  Citations

• Oscillatory behavior of second order damped neutral differential equations with distributed deviating arguments

  Said R. Grace;John R. Graef;Ercan Tunc

  23
  Citations

• Oscillation theory of third-order nonlinear functional differential equations

  John R. Graef;Samir H. Saker

  22
  Citations

• Asymptotic behavior of solutions of nonlinear fractional differential equations with Caputo-Type Hadamard derivatives

  John R. Graef;Said R. Grace;Ercan Tunç

  21
  Citations

• Double solutions of boundary value problems for 2mth-order differential equations and difference equations

  J.R. Graef;J. Henderson

  21
  Citations

• Oscillation of integro-dynamic equations on time scales

  Said R. Grace;John R. Graef;Ağacık Zafer

  18
  Citations

• Global existence and stability for second order functional evolution equations with infinite delay

  John Graef;Abdessalam Baliki;Mouffak Benchohra

  15
  Citations

• Oscillation and Dynamics in Delay Equations

  John R. Graef;Jack K. Hale

  12
  Citations

• Nonresonance impulsive higher order functional nonconvex-valued differential inclusions

  Mouffak Benchohra;John Graef;Johnny Henderson;Sotiris Ntouyas

  11
  Citations

• Positive solutions to a fourth order three point boundary value problem

  John R. Graef;Johnny Henderson;Bo Yang

  6
  Citations

• Uniqueness of positive solutions of fractional boundary value problems with non-homogeneous integral boundary conditions

  Unknown

  3
  Citations

• Oscillatory behavior of second order nonlinear difference equations with a nonlinear nonpositive neutral term

  Said R. Grace;John R. Graef

  2
  Citations