Nita H. Shah received her PhD in Statistics from Gujarat University in 1994. From February 1990 till now she is HOD of Department of Mathematics in Gujarat University, India. She is post-doctoral visiting research fellow of University of New Brunswick, Canada. Prof. Nita's research interests include inventory modeling in supply chain, robotic modeling, mathematical modeling of infectious diseases, image processing, dynamical systems and its applications etc. Prof. Nita has published 13 monograph, 5 textbooks, and 475+ peer-reviewed research papers. Four edited books were prepared for IGI-Global and Springer with a coeditor. Her papers are published in high impact Elsevier, Inderscience and Taylor and Francis journals. She is the author of 14 books. Vishnuprasad D. Thakkar did his Masters in Mathematics from Gujarat University, India and was recipient of the National Merit Scholarship during his post-graduation study. The study was followed by 35+ years’ experience in Information Technology in the area of application solution design, development and implementation including ERP implementation and real-time process monitoring. After retirement from industry, he completed his Ph.D. in Mathematics under guidance of Prof. (Dr.) Nita H. Shah.

• 1. Natural Numbers. 2. Integers. 3. Rational Numbers. 4. Real Numbers. 5. Complex Numbers.

Nita H. Shah received her PhD in Statistics from Gujarat University in 1994. From February 1990 till now she is HOD of Department of Mathematics in Gujarat University, India. She is post-doctoral visiting research fellow of University of New Brunswick, Canada. Prof. Nita's research interests include inventory modeling in supply chain, robotic modeling, mathematical modeling of infectious diseases, image processing, dynamical systems and its applications etc. Prof. Nita has published 13 monograph, 5 textbooks, and 475+ peer-reviewed research papers. Four edited books were prepared for IGI-Global and Springer with a coeditor. Her papers are published in high impact Elsevier, Inderscience and Taylor and Francis journals. She is the author of 14 books. Vishnuprasad D. Thakkar did his Masters in Mathematics from Gujarat University, India and was recipient of the National Merit Scholarship during his post-graduation study. The study was followed by 35+ years’ experience in Information Technology in the area of application solution design, development and implementation including ERP implementation and real-time process monitoring. After retirement from industry, he completed his Ph.D. in Mathematics under guidance of Prof. (Dr.) Nita H. Shah.

• 1. Natural Numbers. 2. Integers. 3. Rational Numbers. 4. Real Numbers. 5. Complex Numbers.

Nita H. Shah received her PhD in Statistics from Gujarat University in 1994. From February 1990 till now she is HOD of Department of Mathematics in Gujarat University, India. She is post-doctoral visiting research fellow of University of New Brunswick, Canada. Prof. Nita's research interests include inventory modeling in supply chain, robotic modeling, mathematical modeling of infectious diseases, image processing, dynamical systems and its applications etc. Prof. Nita has published 13 monograph, 5 textbooks, and 475+ peer-reviewed research papers. Four edited books were prepared for IGI-Global and Springer with a coeditor. Her papers are published in high impact Elsevier, Inderscience and Taylor and Francis journals. She is the author of 14 books. Vishnuprasad D. Thakkar did his Masters in Mathematics from Gujarat University, India and was recipient of the National Merit Scholarship during his post-graduation study. The study was followed by 35+ years’ experience in Information Technology in the area of application solution design, development and implementation including ERP implementation and real-time process monitoring. After retirement from industry, he completed his Ph.D. in Mathematics under guidance of Prof. (Dr.) Nita H. Shah.

• 1. Natural Numbers. 2. Integers. 3. Rational Numbers. 4. Real Numbers. 5. Complex Numbers.