Robert Hakl

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Publications (43)

• Existence and multiplicity of periodic solutions to differential equations with attractive singularities
  Proceedings of the Royal Society of Edinburgh: Section A Mathematics 2022 DOI: 10.1017/prm.2021.14
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• $$\sigma $$-Increasing Positive Solutions for Systems of Linear Functional Differential Inequalities of Non-Metzler Type
  Mediterranean Journal of Mathematics 2020 DOI: 10.1007/s00009-020-01639-8
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• Existence and Multiplicity of Periodic Solutions to Indefinite Singular Equations Having a Non-monotone Term with Two Singularities
  Advanced Nonlinear Studies 2019 DOI: 10.1515/ans-2018-2018
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• Periodic Solutions of an Indefinite Singular Equation Arising from the Kepler Problem on the Sphere
  Canadian Journal of Mathematics-Journal Canadien De Mathematiques 2018 DOI: 10.4153/CJM-2016-050-1
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• Periodic solutions of an indefinite singular equation arising from the Kepler problem on the sphere
  Canadian Journal of Mathematics 2018 DOI: 10.4153/CJM-2016-050-l
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• Periodic solutions to second-order indefinite singular equations
  Journal of Differential Equations 2017 DOI: 10.1016/j.jde.2017.02.044
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• Almost periodic evolution systems with impulse action at state-dependent moments
  Journal of Mathematical Analysis and Applications 2017 DOI: 10.1016/j.jmaa.2016.09.024
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• Existence and properties of semi-bounded global solutions to the functional differential equation with Volterra-type operators on the real line
  Proceedings of the Royal Society of Edinburgh Section A: Mathematics 2017 DOI: 10.1017/S0308210516000524
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• Multi-point boundary value problems for linear functional-differential equations
  Georgian Mathematical Journal 2017 DOI: 10.1515/gmj-2016-0076
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• Existence and uniqueness of a periodic solution to an indefinite attractive singular equation
  Annali di Matematica Pura ed Applicata 2016 DOI: 10.1007/s10231-015-0501-3
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• EXISTENCE RESULTS FOR A FOURTH ORDER PARTIAL DIFFERENTIAL EQUATION ARISING IN CONDENSED MATTER PHYSICS
  Mathematica Bohemica 2015
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• Existence results for a fourth order partial differential equation arising in condensed matter physics
  Mathematica Bohemica 2015
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• Existence and nonexistence results for a singular boundary value problem arising in the theory of epitaxial growth
  Mathematical Methods in the Applied Sciences 2014 DOI: 10.1002/mma.2836
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• Fredholm-type theorem for boundary value problems for systems of nonlinear functional differential equations
  Boundary Value Problems 2014 DOI: 10.1186/1687-2770-2014-113
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• On the open problems connected to the results of Lazer and Solimini
  Proceedings of the Royal Society of Edinburgh Section A: Mathematics 2014 DOI: 10.1017/S0308210512001862
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• Existence of a solution to the Dirichlet problem associated to a second-order differential equation with singularities: The method of lower and upper functions
  Georgian Mathematical Journal 2013 DOI: 10.1515/gmj-2013-0030
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• On radial stationary solutions to a model of non-equilibrium growth
  European Journal of Applied Mathematics 2013 DOI: 10.1017/S0956792512000484
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• Periodic solutions to the Liénard type equations with phase attractive singularities
  Boundary Value Problems 2013 DOI: 10.1186/1687-2770-2013-47
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• Component-wise positivity of solutions to periodic boundary problem for linear functional differential system
  Journal of Inequalities and Applications 2012 DOI: 10.1186/1029-242X-2012-112
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• On the dimension of the solution set to the homogeneous linear functional differential equation of the first order
  Czechoslovak Mathematical Journal 2012 DOI: 10.1007/s10587-012-0062-1
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