Topology degree results on a G-ABC implicit fractional differential equation under three-point boundary conditions

• Shahram Rezapour,

  Roles Conceptualization, Formal analysis, Investigation, Methodology, Validation, Writing – review & editing

  Affiliations Institute of Research and Development, Duy Tan University, Da Nang, Vietnam, Department of Mathematics, Azarbaijan Shahid Madani University, Tabriz, Iran, Insurance Research Center (IRC), Tehran, Iran, Department of Medical Research, China Medical University Hospital, China Medical University,Taichung, Taiwan

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• Sabri T. M. Thabet,

  Roles Conceptualization, Formal analysis, Investigation, Methodology, Software, Validation, Writing – original draft, Writing – review & editing

  Affiliations Department of Mathematics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India, Department of Mathematics, Radfan University College, University of Lahej, Lahej, Yemen, Department of Mathematics, College of Science, Korea University, Seoul, South Korea

  https://orcid.org/0000-0002-4568-9732

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• Ava Sh. Rafeeq,

  Roles Formal analysis, Investigation, Methodology, Software, Validation, Writing – original draft

  Affiliation Department of Mathematics, College of Science, University of Zakho, Duhok, Iraq

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• Imed Kedim,

  Roles Formal analysis, Investigation, Methodology, Software, Validation, Writing – original draft, Writing – review & editing

  Affiliation Department of Mathematics, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia

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• Miguel Vivas-Cortez ,

  Roles Formal analysis, Funding acquisition, Investigation, Methodology, Validation, Writing – review & editing

  * E-mail: mjvivas@puce.edu.ec

  Affiliation Faculty of Exact and Natural Sciences, School of Physical Sciences and Mathematics, Pontifical Catholic University of Ecuador, Sede Quito, Ecuador

  https://orcid.org/0000-0002-1567-0264

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• Nasser Aghazadeh

  Roles Formal analysis, Investigation, Methodology, Validation, Writing – original draft, Writing – review & editing

  Affiliation Department of Mathematics, Izmir Institute of Technology, Izmir, Türkiye

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