REJI KUMAR K

Verified email at yahoo.co.in

Assistant Professor in Mathematics
N S S College, Kerala University



                                         

https://researchid.co/rejiresearch

K. Reji Kumar, Ph. D.
Assistant Professor and the Head of the Department
P. G. Department of Mathematics
N. S. S. College, Cherthala
Kochuramapuram (P.O.) Alappuzha
PIN: 689 501
rkkmaths@yahoo.co.in
rkkresearch@yahoo.co.in


PROFESSIONAL RESEARCH EXPERIENCE

• Awarded summer research fellowship of Indian Academy of Sciences and did post-doctoral
research in Indian Statistical Institute, at the Delhi center for two months (1st April 2007 to 30th May 2007), under the supervision of Prof. R. B. Bapat.
• Did post-doctoral research in Dept. of Mathematics and Statistics, University of
Victoria, Canada, from 1st April 2008 to 1st November 2008. I got the BOYSCAST fellowship of the Department of Science and Technology, India.

EDUCATION

MSc (Mathematics), MA (Philosophy), B. Ed,
M. Phil (Applied Mathematics), Ph. D (Mathematics)

RESEARCH INTERESTS

Graph Theory, Discrete Mathematics, Mathematical Modeling, Consciousness Research

FUTURE PROJECTS

Mathematical Modeling of Consciousness

The aim of the project is to develop a mathematical theory of Human Consciousness. An axiomatic approach to the study of consciousness is already under consideration. According to this theory, models form the basic units of consciousness. There are three types of models


Applications Invited
Collaborators

Domination in Graph Theory and Related Topics

Domination is an established area of research in Graph Theory. The project aims at further research in this area.


Applications Invited
Collaborators

Mathematics for Social Change and Development

Mathematics is not a subject just for study and teaching. It has the fascinating potential of applications in all fields of knowledge. This project aims at exploring all such possibilities.


Applications Invited
Collaborators
16

Scopus Publications

253

Scholar Citations

8

Scholar h-index

3

Scholar i10-index

Scopus Publications

  • Developing an Efficient Waste Management System: An Approach by Using Some Methods of Mathematical Modelling
    K Reji Kumar and E N Satheesh

    IOP Conference Series: Materials Science and Engineering, ISSN: 17578981, eISSN: 1757899X, Volume: 872, Published: 26 June 2020 IOP Publishing

  • An Approximation to m-Ranking Method in Networks
    K. Reji Kumar and Shibu Manuel

    Lecture Notes on Data Engineering and Communications Technologies, ISSN: 23674512, eISSN: 23674520, Pages: 344-352, Published: 2020 Springer International Publishing
    Identifying important nodes in a network is an important area of research in network science. m-ranking method is a method proposed Reji Kumar et al. [18] for ranking the nodes in a network which avoids the chance of assigning same rank for two nodes with different physical characteristics. This ranking takes into account the degree of all nodes and weights of all edges in a network. As the network becomes bigger and bigger the m-ranking method takes more and more time to complete. To overcome this difficulty in this paper we propose an approximation to this method, which simplifies the calculations without undermining the ranking outcome. We illustrate the procedure in some example networks.

  • A Network Analysis of the Contributions of Kerala in the Field of Mathematical Research Over the Last Three Decades
    K. Reji Kumar and Shibu Manuel

    Lecture Notes on Data Engineering and Communications Technologies, ISSN: 23674512, eISSN: 23674520, Pages: 585-590, Published: 2020 Springer International Publishing
    In this paper we compare the performance made by higher educational institutions in Kerala (a southern state in India) in the field Mathematical research for the period from 1981 to 2015. The entire period is conveniently divided into periods of five years. We use some techniques from social network analysis to compare the performance of institutions over time. His study is based on the research papers published by the faculty of the institutions in the national and international journals which are indexed and listed by MatScinet of American Mathematical Society, which is a prominent abstracting agency in the field of Mathematics. Data available in the data base of MatScinet is used to prepare the network of collaborations of the institutions. These networks are further analyzed and compared to arrive at many valuable conclusions.

  • Collaborations of Indian institutions which conduct mathematical research: A study from the perspective of social network analysis
    K. Reji Kumar and Shibu Manuel

    Scientometrics, ISSN: 01389130, eISSN: 15882861, Volume: 117, Pages: 1041-1051, Published: 1 November 2018 Springer Science and Business Media LLC
    Expansion of knowledge in the realm of higher mathematics is highly important when progress of human society is concerned. As a fast developing country, in India we need a monitoring system which would tell us the exact nature of changes taking place in the field of mathematics. This is the motivation behind this paper. In this paper we present an analysis of the network formed by institutions which conduct research and publish articles in the field of Mathematics. Collaboration between a member of one institute and a member of another institute make a connection between the institutions. We make a comparative study of the network formed in consecutive years over a period of time giving emphasis to importance of institutions in the research network.

  • Interior exterior and boundary of fuzzy soft multi topology in decision making
    K. Reji Kumar and S. A. Naisal

    2016 International Conference on Control Instrumentation Communication and Computational Technologies, ICCICCT 2016, Pages: 147-152, Published: 21 July 2017 IEEE
    In this paper we define some properties of soft multi sets. We also define soft multi set topology, its interior, exterior, boundary and their properties. We discuss mathematical modeling of spacial objects using fuzzy soft interior, fuzzy soft exterior, fuzzy soft boundary. A decision making problem is also included. Main aim of this study is to give an extension of the existing studies of special objects and to give better result using fuzzy soft set theory. An application of fuzzy concepts and the topological interior, exterior, and boundary is clearly available [11] in the literature. Here we find the maximum affected area of Mikania micrantha using interior, boundary and exterior by taking row maximum and row minimum using the numerical value of resultant fuzzy soft sets. It also provides conceptual definition and explanation along with a quantitative description of topological aspects between spacial objects.

  • The m-Ranking of nodes in complex networks
    K. Reji Kumar, Shibu Manuel, and Deepu Benson

    2017 9th International Conference on Communication Systems and Networks, COMSNETS 2017, Pages: 413-414, Published: 9 June 2017 IEEE
    Identifying influential nodes in complex networks has attracted much attention because of its great theoretical significance and wide application. The m-Ranking method takes into account degree of all nodes and weight of all edges to rank nodes of the network with different weight. This ranking method can be used for unweighted networks also by fixing the value of the parameter α = 1. In addition, we demonstrate our new method on a real air traffic network and show that the ranks calculated using the new method is more meaningful compared with other methods.

  • Mathematical modeling of consciousness: A foundation for information processing
    Rejikumar Karunakaran

    Proceedings of IEEE International Conference on Emerging Technological Trends in Computing, Communications and Electrical Engineering, ICETT 2016, Published: 7 March 2017 IEEE
    Human consciousness is modeled mathematically, using models as fundamental units [6]. It is hypothesized that consciousness is the effect of all model based activities taking place in our mind. In this paper we initiate a study to explain how the complex phenomenon of consciousness evolves from a very simple, fundamental level.

  • Spreading information in complex networks: A modified method
    Rejikumar Karunakaran and Shibu Manuel

    Proceedings of IEEE International Conference on Emerging Technological Trends in Computing, Communications and Electrical Engineering, ICETT 2016, Published: 7 March 2017 IEEE
    Spreading information in complex networks is studied by researchers using methods such as k — shell decomposition, degree k, closeness centrality etc. In this paper we discuss the importance of increase in degree of vertiees in a network in spreading information. We also pinpoint some important flaws in the existing methods and propose a modified method to do the identification of the most influential nodes as spreaders.

  • Mathematical modeling of consciousness: Subjectivity of mind
    K. Reji Kumar

    Proceedings of IEEE International Conference on Circuit, Power and Computing Technologies, ICCPCT 2016, Published: 2 August 2016 IEEE
    In this article, our research focuses on the subjectivity of human experiences. We discuss the possible reasons for subjectivity and present a mathematical model which explains this phenomenon. Also an objective way to measure the subjectivity of human thinking is introduced.

  • A mathematical modeling of Ayurveda doshas: Application of fuzzy soft topology
    International Journal of Pure and Applied Mathematics, ISSN: 13118080, eISSN: 13143395, Volume: 106, Pages: 33-43, Published: 2016

  • Efficient domination in circulant graphs
    K. Reji Kumar and Gary MacGillivray

    Discrete Mathematics, ISSN: 0012365X, Volume: 313, Pages: 767-771, Published: 2013 Elsevier BV
    Abstract Results about wreath products of circulant graphs are used to construct infinitely many circulant graphs with efficient dominating sets whose elements need not be equally spaced in Z n . It is proved that if a circulant graph of large degree has an efficient dominating set, then either its elements are equally spaced, or the graph is the wreath product of a smaller circulant graph with an efficient dominating set and a complete graph.

  • Topological properties of the set of all minimal total dominating functions of a graph
    Journal of Combinatorial Mathematics and Combinatorial Computing, ISSN: 08353026, Pages: 213-223, Published: February 2011

  • Structure of the set of all minimal total dominating functions of some classes of graphs
    K.Reji Kumar and Gary MacGillivray

    Discussiones Mathematicae - Graph Theory, ISSN: 12343099, Pages: 407-423, Published: 2010 Faculty of Mathematics, Computer Science and Econometrics, University of Zielona Gora
    In this paper we study some of the structural properties of the set of all minimal total dominating functions (FT ) of cycles and paths and introduce the idea of function reducible graphs and function separable graphs. It is proved that a function reducible graph is a function separable graph. We shall also see how the idea of function reducibility is used to study the structure of FT (G) for some classes of graphs.

  • On the ideal convergence of sequences of fuzzy numbers
    Vijay Kumar and Kuldeep Kumar

    Information Sciences, ISSN: 00200255, Volume: 178, Pages: 4670-4678, Published: 15 December 2008 Elsevier BV
    In this paper we introduce and study the concepts of I-convergence, I^*-convergence and I-Cauchy sequence for sequences of fuzzy numbers where I denotes the ideal of subsets of N, the set of positive integers.

  • Basic minimal dominating functions
    Utilitas Mathematica, ISSN: 03153681, Pages: 235-247, Published: November 2008

  • On maximal fractional independent sets in graphs
    Ars Combinatoria, ISSN: 03817032, Pages: 205-212, Published: April 2008

RECENT SCHOLAR PUBLICATIONS

  • 1064 Extra-Articular Tibial Deformity Management in Total Knee Replacement
    SM Choi, R Kumar, R Morgan-Jones, S Agarwal
    British Journal of Surgery 108 (Supplement_6), znab259. 1023 2021

  • Efficient Waste Management Models for Smart Cities: A Case Study
    KR Kumar, EN Satheesh
    IOP Conference Series: Materials Science and Engineering 1187 (1), 012010 2021

  • Variations in the human consciousness-An explanation on the basis of model theory (RKT) and its applications
    KR Kumar
    Recent Trends in Communication and Electronics: Proceedings of the 2021

  • A review paper on materials used for manufacturing of alloy wheels
    A Naim, R Kumar, S Bhatia
    IOP Conference Series: Materials Science and Engineering 1136 (1), 012006 2021

  • Nipah outbreak in Kerala–A network-based study
    KR Kumar
    Journal of Physics: Conference Series 1850 (1), 012019 2021

  • Path and Star Decomposition of Knodel and Fibonacci Digraphs
    KR Kumar, J Mathew
    Journal of Physics: Conference Series 1850 (1), 012032 2021

  • Hyperstar Decomposition of r-partite complete, Knodel and Fibonacci Hypergraphs
    KR Kumar, J Mathew
    Journal of Physics: Conference Series 1850 (1), 012018 2021

  • Pharmacological Activities of Achillea santolina: A Review
    S Kumar, R Kumari
    Am J Pharmacol Pharmacother 8 (3), 13 2021

  • Traditional Uses, Phytochemistry and Biological Activities of Agaricus blazei murrill: A Comprehensive Review
    S Kumar, R Kumari
    Am J Pharmacol Pharmacother 8 (3), 14 2021

  • A Comparative Study of Kerala School of Mathematics with European School: Based on Network Analysis
    KR Kumar, CM Indukala, EN Satheesh
    Advances in Electrical and Computer Technologies, 349-358 2021

  • An Explanation of Personal Variations on the Basis of Model Theory or RKT
    K Reji Kumar
    Smart Computing Techniques and Applications, 729-734 2021

  • On Interior, Exterior, and Boundary of Fuzzy Soft Multi-Set Topology
    SA Naisal, K Reji Kumar
    Smart Computing Techniques and Applications, 663-671 2021

  • A comparative study of the SIR prediction models and disease control strategies: a case study of the State of Kerala, India
    K Reji Kumar
    Computational Intelligence Methods in COVID-19: Surveillance, Prevention 2021

  • Safe Eternal m-secure sets in Graphs
    KR Kumar, EN Satheesh
    Journal of Physics: Conference Series 1706 (1), 012049 2020

  • Colostomy site recurrence in rectal cancer
    PK Garg, JR Kumar, R Kumar, MP Singh
    Techniques in Coloproctology 24 (10), 1097-1098 2020

  • Developing an Efficient Waste Management System: An Approach by Using Some Methods of Mathematical Modelling
    KR Kumar, EN Satheesh
    IOP Conference Series: Materials Science and Engineering 872 (1), 012181 2020

  • Study on incidence of fractures with respect to breed, age, sex, type and location of fractures and bone involved
    BB Kumar, AK Sharma, PK Reetu, C Kumar, R Kumar
    2020

  • Molecular characterization of native chicken: prospects and challenges
    S Agarwal, S Prasad, R Kumar, S Chandra
    J Entomol Zool Stud 8, 103-106 2020

  • AICRP Reporter: A web-based reporting system for the trials of AICRP on sugarcane
    SS HASAN, AD PATHAK, SK SHUKLA, R KUMAR
    Indian Journal of Sugarcane Technology 34 (02), 49-52 2019

  • An Approximation to m-Ranking Method in Networks
    K Reji Kumar, S Manuel
    Intelligent Communication Technologies and Virtual Mobile Networks, 344-352 2019

MOST CITED SCHOLAR PUBLICATIONS

  • Efficient Domination in Circulant Graphs
    GMG K. Reji Kumar
    Discrete Mathematics 313, 767–771 2013
    Citations: 30

  • Some aspects of Bombay city politics in 1919
    J Masselos, R Kumar
    Essays on Gandhian politics: The Rowlatt satyagraha, 145-88 1971
    Citations: 16

  • An improved k-shell decomposition for complex networks based on potential edge weights
    S Manuel, KR Kumar
    Int. J of Applied Mathematical Sciences, 163-168 2016
    Citations: 12

  • Spreading information in complex networks: A modified method
    K Reji Kumar, S Manuel
    Proceedings of International Conference on Emerging Technological Trends 2016
    Citations: 9

  • Long term effect of organic sources of nutrients on productivity and soil health in maize+ soybean-wheat+ gram cropping system
    JP Saini, R Kumar
    Proceedings of the 4th ISOFAR Scientific Conference.‘Building Organic 2014
    Citations: 9

  • Fractional independence and fractional domination chain in graphs
    S Arumugam, K Rejikumar
    AKCE International Journal of Graphs and Combinatorics 4 (2), 161-169 2007
    Citations: 9

  • Prospective Urban Rural Epidemiology (PURE) study investigators
    A Mente, M Dehghan, S Rangarajan, M McQueen, G Dagenais, ...
    Association of dietary nutrients with blood lipids and blood pressure in 18
    Citations: 9

  • Spectra of a new join of two graphs
    RP Varghese, KR Kumar
    Advances in Theoretical and Applied Mathematics 11 (4), 459-470 2016
    Citations: 8

  • Socioeconomic status and cardiovascular secondary prevention therapies in South Asia: the PURE Study
    R Gupta, P Mony, K Shankar, S Islam, S Rangarajan, VR Kutty, ...
    Eur J Prev Cardiol 22, 1261-1271 2015
    Citations: 8

  • Fifteen years of research on seabuckthorn in CSK Himachal Pradesh Agriculture University, Palampur
    V Singh, VK Sharma, M Sharma, SP Tyagi, YS Dhaliwal, RK Rana, ...
    Proceedings of national conference on Seabuckthorn: emerging trends in 2010
    Citations: 7

  • Modeling of consciousness: classification of models
    KR Kumar
    Advanced Studies in Biology 3, 141-146 2010
    Citations: 7

  • Spectrum of (k, r)-regular hypergraphs
    KR Kumar, RP Varghese
    International Journal of Mathematical Combinatorics 2, 52 2017
    Citations: 6

  • The m-ranking of nodes in complex networks
    KR Kumar, S Manuel, D Benson
    2017 9th International Conference on Communication Systems and Networks 2017
    Citations: 6

  • Mathematical modeling of consciousness: Subjectivity of mind
    KR Kumar
    2016 International Conference on Circuit, Power and Computing Technologies 2016
    Citations: 6

  • Basic minimal dominating functions
    KR Kumar, S Arumugam
    Utilitas Mathematica 77, 235 2008
    Citations: 6

  • Questionnaire designing
    R Rai, V Dwivedi, R Kumar, S Kumar
    Mammology 1 (2), 22-26 2005
    Citations: 6

  • Availability and affordability of cardiovascular disease medicines and their impact on use: comparison across high, middle, and low-income countries
    R Khatib, M McKee, H Shannon, C Chow, S Rangarajan, K Teo, L Wei, ...
    Lancet 387, 61-69 2016
    Citations: 5

  • Sol. Energy Mater. Sol. Cells
    KP Singh, R Kumar, M Lal, SN Singh, BK Das
    2001
    Citations: 5

  • Availability and affordability of essential medicines for diabetes across high-income, middle-income, and low-income countries: a prospective epidemiological study. Lancet
    CK Chow, C Ramasundarahettige, W Hu, KF AlHabib, A Avezum, ...

    Citations: 5

  • Changes in weather entities and extreme events in western Haryana, India
    AK ANURAG, D SINGH, RAJ SINGH, M KUMAR, S SINGH, S KUMAR

    Citations: 5