Dr. Ayhan Esi is currently working as a professor Adiyaman University, Department of Mathematics, 02040, Adiyaman, Turkey. Ayhan Esi got his B.Sc. from Inonu University in 1987 and M. Sc. and Ph.D. degree in pure mathematics from Elazig University, Turkey in 1990 and 1995, respectively. In 2000, Ayhan Esi was appointed to the Faculty of Education in Gaziantep University. In 2002, Ayhan Esi was appointed as head of Department of Mathematics in Science and Art Faculty in Adiyaman of the Inonu University.
Dr. Ayhan Esi he served as an editorial board member of many journals and he is written by so many articles. He wrote a book named as Zweier I - Convergent Sequence Spaces and Their Properties.
Summability, Theory, Sequences and Series in Analysis and Functional Analysis
