Recent advances in PDE and their applications Preface

This issue is a collection of 15 selected papers of foreign and national scientists. All these have been accepted after peer-reviewing and contain numerous new results in the fields of construction and investigation of solutions of well-posed and ill-posed boundary value problems for partial differential equations and their related applications. The authors of the selected papers are from different countries: Turkey, Kazakhstan, USA, Russian Federation, Azerbaijan, Kirgizistan, Uzbekistan, Turkmenistan, Pakistan and Nijerya. We are especially pleased with the fact that many articles are written by co-authors who work in different universities around the world.