Published Special Issues [10 issues]

• Nonlinear Functional Analysis of Boundary Value Problems: Novel Theory, Methods, and Applications
  Guest Editors: Yong Hong Wu, Lishan Liu, Benchawan Wiwatanapataphee, and Shaoyong Lai
• Functional Differential and Difference Equations with Applications
  Guest Editors: Josef Diblík, Elena Braverman, István Györi, Yuriy Rogovchenko, Miroslava Růžičková, and Ağacik Zafer
• Advanced Theoretical and Applied Studies of Fractional Differential Equations
  Guest Editors: Dumitru Baleanu, Juan J. Trujillo, Bashir Ahmad, and Mark M. Meerschaert
• Nonlinear Problems: Analytical and Computational Approach with Applications
  Guest Editors: Khalida Inayat Noor, Muhammad Aslam Noor, Syed Tauseef Mohyud-Din, Ahmet Yıldırım, and Shaher M. Momani
• Variational Methods and Critical Point Theory
  Guest Editors: M. Victoria Otero-Espinar, Juan J. Nieto, Donal O'Regan, and Kanishka Perera
• Well-Posed and Ill-Posed Boundary Value Problems for PDE
  Guest Editors: Allaberen Ashyralyev, Sergey Piskarev, Valery Covachev, Ravshan Ashurov, and Hasan Ali Yurtsever
• Ulam's Type Stability
  Guest Editors: Janusz Brzdek, Nicole Brillouet-Belluot, Krzysztof Cieplinski, and Bing Xu
• Trends in Classical Analysis, Geometric Function Theory, and Geometry of Conformal Invariants
  Guest Editors: Saminathan Ponnusamy, Árpád Baricz, Matti Vuorinen, and Karl Joachim Wirths
• Recent Progress in Differential and Difference Equations
  Guest Editors: J. Diblík, E. Braverman, Yu. Rogovchenko, and M. Růžičková
• Topological and variational methods of nonlinear analysis and their applications
  Guest Editors: V. G. Zvyagin, Yu. E. Gliklikh, V. V. Obukhovskii, A. I. Perov, B. N. Sadovskii, Yu. I. Sapronov, V. A. Sobolev, and Z. B. Tsaliuk