Optimal control problems for partial differential equations on reticulated domains: approximation and asymptotic analysis PI Kogut, GR Leugering Springer Science & Business Media, 2011 | 91 | 2011 |

Approximation of Optimal Control Problems in the Coefficient for the -Laplace Equation. I. Convergence Result E Casas, PI Kogut, G Leugering SIAM Journal on Control and Optimization 54 (3), 1406-1422, 2016 | 45 | 2016 |

Weak optimal controls in coefficients for linear elliptic problems G Buttazzo, PI Kogut Revista Matematica Complutense 24, 83-94, 2011 | 40 | 2011 |

Optimal -Control in Coefficients for Dirichlet Elliptic Problems: -Optimal Solutions PI Kogut, G Leugering Zeitschrift für Analysis und ihre Anwendungen 31 (1), 31-53, 2011 | 35 | 2011 |

On approximation of an optimal boundary control problem for linear elliptic equation with unbounded coefficients PI Kogut Discrete and Continuous Dynamical Systems-Series A 34 (5), 2105-2133, 2014 | 31 | 2014 |

On vector-valued approximation of state constrained optimal control problems for nonlinear hyperbolic conservation laws PI Kogut, R Manzo Journal of Dynamical and Control Systems 19, 381-404, 2013 | 27 | 2013 |

Optimal L2-control problem in coefficients for a linear elliptic equation T Horsin, PI Kogut arXiv preprint arXiv:1306.2513, 2013 | 26 | 2013 |

On relaxation of state constrained optimal control problem for a PDE-ODE model of supply chains C D'Apice, PI Kogut, R Manzo Networks and Heterogeneous Media 9 (3), 501-518, 2014 | 23 | 2014 |

Suboptimal boundary controls for elliptic equation in critically perforated domain C D'Apice, U De Maio, PI Kogut Annales de l'Institut Henri Poincaré C, Analyse non linéaire 25 (6), 1073-1101, 2008 | 23 | 2008 |

Matrix-valued L1-optimal controls in the coefficients of linear elliptic problems PI Kogut, G Leugering Z. Anal. Anwend 32 (4), 433-456, 2013 | 22 | 2013 |

On approximate solutions to the Neumann elliptic boundary value problem with non-linearity of exponential type PI Kogut, R Manzo, AO Putchenko Boundary Value Problems 2016 (1), 208, 2016 | 21 | 2016 |

On -Homogenization of an Optimal Control Problem with Control and State Constraints PI Kogut, G Leugering Zeitschrift für Analysis und ihre Anwendungen 20 (2), 395-429, 2001 | 20 | 2001 |

Gap phenomenon in the homogenization of parabolic optimal control problems C D'Apice, U De Maio, PI Kogut IMA Journal of Mathematical Control and Information 25 (4), 461-489, 2008 | 17 | 2008 |

An indirect approach to the existence of quasi-optimal controls in coefficients for multi-dimensional thermistor problem C D’Apice, U De Maio, PI Kogut Contemporary Approaches and Methods in Fundamental Mathematics and Mechanics …, 2020 | 16 | 2020 |

On optimal and quasi-optimal controls in coeﬃcients for multi-dimensional thermistor problem with mixed Dirichlet-Neumann boundary conditions PI Kogut Control and cybernetics 48 (1), 31-68, 2019 | 16 | 2019 |

Variational S-Convergence of Minimization Problems. Part I. Definition and Basic Properties PI Kogut Journal of Automation and Information Sciences 30 (4-5), 1998 | 15 | 1998 |

Approximation Methods in Optimization of Nonlinear Systems PI Kogut, OP Kupenko Walter de Gruyter GmbH & Co KG, 2019 | 14 | 2019 |

Homogenization of optimal control problems in variable domains. Principle of the fictitious homogenization P Kogut, G Leugering Asymptotic Analysis 26 (1), 37-72, 2001 | 14 | 2001 |

On optimal control problem for an ill-posed strongly nonlinear elliptic equation with p-Laplace operator and L^{1}-type of nonlinearity.PI Kogut, OP Kupenko Discrete & Continuous Dynamical Systems-Series B 24 (3), 2019 | 13 | 2019 |

S-convergence of conditional minimization problems and its variational properties PI Kogut JOURNAL OF AUTOMATION AND INFORMATION SCIENCES C/C OF AVTOMATIKA THEN …, 2000 | 13 | 2000 |