A tribute to Ivan Kiguradze

Tribute to Ivan Stojmenovic

It is with a heavy heart that I serve as guest editor of this commemorative issue of Ad Hoc Sensors & Wireless Networks. My father founded this journal 10 years ago in the field that he loved and contributed most to. Research was his passion, and he conveyed this passion to me throughout his life. We worked in different fields of computer science, mine being computer vision, but always looked f...

Ivan Kiguradze and Sulkhan Mukhigulashvili ON PERIODIC SOLUTIONS OF THE SYSTEM OF TWO LINEAR DIFFERENTIAL EQUATIONS

Problems on the existence and uniqueness of a periodic solution of nonautonomous ordinary differential equations and systems have long been attracting the attention of mathematicians and used as the subject of many studies (see, for example, [1]–[29] and the references therein). And all the same these problems still remain topical for the linear differential system u′i = pi1(t)u1 + pi2(t)u2 + q...

A Tribute to Late Professor Mahlagha Ghorbanli

This edition of IJPP celebrates ten years of steady publication of Iranian Journal of Plant Physiology. The story of IJPP is that of a journey that started from a local forum where the researchers and scholars mainly from the Islamic Azad University could share findings of their studies, gradually developing into an international peer-reviewed jour...

Membrane Science and Research: A Tribute to Professor Takeshi Matsuura

Ivan Kiguradze, Alexander Lomtatidze, and Nino Partsvania SOME MULTI–POINT BOUNDARY VALUE PROBLEMS FOR SECOND ORDER SINGULAR DIFFERENTIAL EQUATIONS

Abstract. For second order nonlinear differential equations with nonintegrable singularities with respect to the time variable, unimprovable sufficient conditions for solvability and unique solvability of multi-point boundary value problems are established. îâäæñéâ. éâëîâ îæàæï ŽîŽûîòæãæ áæòâîâêùæŽèñîæ àŽêðëèâIJâIJæïŽåãæï ŽîŽæêðâàîâIJŽáæ ïæêàñèŽîëIJâIJæå áîëæåæ ùãèŽáæï éæéŽîå áŽáàâêæèæŽ éîŽãŽèû...