Ravi Sankar N

Ravi Sankar N

Professor-HOD, Mathematics, GSS , VSP

Education
Ph. D.
Email ID
rnowpada@gitam.edu
Education
Ph. D.
Research Areas
  • Applied Group Theory
  • Operations Research
  • Fuzzy Mathematics
  • Cryptography and Network Security

Education

Degree Name Institute & College name Year of Graduation/Award
M.Tech. College of Engineering 2008
Applied Mathematics College of science and Technology 2002
M.Sc. College of Science & Technology 1992
B.Sc. B.V.K. College 1989

Experience

Designation Organization From Date To Date
Lecturer V.V.R.K.M.L.Degree College 04-08-1992 30-11-1998

Awards

Award name Award Organization Awarded year
Tangirala Venkatarama Somayaji & Venkamma Memorial Prize,2.Prof. T.S.G. Krishna Murthy Shastiabdipoorthi prize Andhra University , 63rd convocation 1992

Enhancing e Banking Security of Two Factor Authentication using Elliptic Curve Cryptography with Laplace TransformSolid State Technology, Scopus, -2021, 64, 979-995

A NEW RANKING APPROACH FOR FINDING OPTIMUM SOLUTION FOR IFTP OF TYPE1Advances in Mathematics Scientific Journal, Scopus, -2021, 10, 1377-1388

A Novel Approach to Find Optimum Solution of a Fuzzy TP using Type2 IFSSolid State Technology, Scopus, -2020, 63, 2932-2940

An Implementation of ElGamal Scheme for Laplace Transform CryptosystemIndian Journal of Computer Science and Engineering , Scopus, -2020, 11, 49-56

Asymmetric key Cryptography using Laplace TransformInternational Journal of Innovative Technology and Exploring Engineering, Scopus, -2020, 9, 3083-3087

Criticality Degree and Project Characteristics in a Fuzzy Project NetworkSolid State Technology, Scopus, -2020, 63, 4277-4285

IMPLEMENTED MODIFIED DIJKSTRAS ALGORITHM TO FIND PROJECT COMPLETION TIMEAdvances in Mathematics Scientific Journal, Scopus, -2020, 9, 10787-10795

A New Perspective for Solving Generalized Trapezoidal Intuitionistic FuzzyTransportation Problems using Centroid of CentroidsPJAEE, Scopus, -2020, 17, 2011-2019

Application of Fuzzy Multi Objective Transportation problemInternational Review of Fuzzy Mathematics, Google scholar, -2019, 14, 67-94

Enhancing the Data Security by using RSA algorithm with application of Laplace transform cryptosystemInternational Journal of Recent Technology and Engineering, Scopus, -2019, 8, 6142-6147

Evaluation and Selection of Supplier Chain Management using DEA TOPSIS Methods under Intuitionistic Fuzzy EnvironmentInternational Journal of Innovative Technology and Exploring Engineering, Scopus, -2019, 8, 167-172

Eco Friendly Closed Loop Supply Chain Model Under Fuzzy Conditions International Journal of Recent Technology and Engineering, Scopus, NOV-2019, 8, 3737-3751

Probabilistic Linear Programming in Project Management International Journal of Applied Engineering Research, Google scholar, -2019, 14, 936-941

Fuzzy Risk Analysis Based on Ranking Fuzzy Numbers Using Incenter of CentroidsUniversal Review, Google scholar, -2018, 7, 35-56

A new approach for solving fully fuzzy linear programming using the centroid of centroid index methodPramana Research Journal, Google scholar, -2018, 8, 123-141

A node weighted rooted tree (NWRT) method to find project characteristics and critical path in a triangular fuzzy project networkcomputational and Applied Mathematics, Web of science, -2018, 37, 1971-1985

Ranking Generalized LR Fuzzy Numbers Using Area, Mode, Spreads and WeightsApplied Mathematical sciences, Scopus, -2017, 11, 1943-1953

Application of Fuzzy Assignment ProblemAdvances in Fuzzy Mathematics, Google scholar, -2017, 12, 915-939

Ordering Generalized LR Fuzzy NumbersInternational Journal of Engineering Science and Technology, Google scholar, -2017, 9, 676-685

Ordering of Intuitionistic fuzzy numbers using centroid of centroids of Intuitionistic fuzzy number International Journal of Mathematics Trends and Technology , Google scholar, -2017, 52, 276-285

Novel Distance Measure in Fuzzy TOPSIS for Supply Chain Strategy Based Supplier Selection Mathematical Problems in Engineering, Scopus, -2016, 2016, 1-17

Characters for the Permutation Group of Degree n using Specht Module and Semi Standard Young TableauxInternational Journal of Computer Applications, Google scholar, -2016, 147, 7-11

Key Properties of Hesitant fuzzy soft topological spacesInternational Journal of Scientific & Engineering Research, Google scholar, -2016, 7, 149-156

Key properties related to soft connected spacesInternational Journal of Mathematics and Computer Research, Google scholar, -2015, 3, 1059-1064

Improved approximation of PERT activity parameters and validation Scholars Journal of Engineering and Technology, Google scholar, -2015, 3, 55-60

Graphical Approach to Index and Retrieve Standard Young Tableaux International Journal of Computer Applications , Google scholar, -2015, 111, 10-15

Characteristics of a Fuzzy Project Network using Statistical Data International Journal of Computer Applications, Google scholar, -2015, 112, 1-12

Fuzzy critical Path based on interval valued linguistic fuzzy sets International Journal of Mathematical Archive, Google scholar, -2015, 6, 1-10

Some Important Properties of Intuitionistic Fuzzy Soft Sequentially Compact & IFS Totally Bounded SpacesInternational Journal of Emerging Trends in Science and Technology, Google scholar, -2015, 2, 2890-2895

Selection of Critical path in a Project Network using TOPSIS Method International Journal of Mathematical Archive, Google scholar, -2015, 6, 1-10

Critical Path in a Project Network using TOPSIS Method and Linguistic Trapezoidal Fuzzy NumbersInternational Journal of Scientific & Engineering Research, Google scholar, -2015, 6, 24-31

Fuzzy Critical Path Method based on a New Approach of Ranking Fuzzy Numbers International Journal of Scientific and Innovative Mathematical Research, Google scholar, -2015, 3, 196-199

Fuzzy risk analysis based on the novel fuzzy ranking with new arithmetic operations of linguistic fuzzy numbers Journal of Intelligent & Fuzzy Systems, Scopus, -2014, 26, 2391-2401

Fuzzy Multi Objective Transportation Model Based on New Ranking Index on Generalized LR Fuzzy Numbers Applied Mathematical sciences, Scopus, -2014, 8, 6849-6879

A Novel Fuzzy Soft Theory on Compact Spaces for Particular Issues International Journal of Basic Sciences and Applied Computing , Google scholar, -2014, 1, 10-14

Secondary Critical Path in a Fuzzy Project NetworkScholars Journal of Physics, Mathematics and Statistics , Google scholar, -2014, 1, 53-60

Fuzzy Distance Measure Scholars Journal of Engineering and Technology, Google scholar, -2014, 2, 908-912

A New Modular Multiplication Method in Public Key Cryptosystem International Journal of Network security, Scopus, -2013, 15, 23-27

Fuzzy critical path analysis based on centroid of centroids of fuzzy numbers and new subtraction method International Journal of Mathematics in Operations Research, Scopus, -2013, 5, 205-224

Fuzzy linear programming model for critical path analysis International journal of contemporary mathematical sciencesInternational journal of contemporary mathematical sciences, Google scholar, -2013, 8, 93-116

Fuzzy multi objective assignment linear programming probelm based on LR fuzzy numbers International Journal of computer applications, Google scholar, -2013, 63, 38-49

A New Approach to Find Project Characteristics and Multiple Possible Critical Paths in a Fuzzy Project Network Fuzzy Information and Engineering, Scopus, -2013, 5, 69-85

Ranking Fuzzy Numbers with an Area Method Using Circumcenter of Centroids Fuzzy Information and Engineering, Scopus, -2013, 5, 3-18

Fuzzy Assignment Problem with Generalized fuzzy numbersApplied Mathematical sciences, Scopus, -2013, 7, 3511-3537

Fuzzy Transportation Linear Programming Models based on LR fuzzy numbers International Journal of Computer Applications, Google scholar, -2013, 72, 4-13

Fuzzy Critical Path method based on a new approach of ranking fuzzy numbers using centroid of centroidsInternational Journal of Fuzzy System Applications, Scopus, -2013, 3, 16-31

An optimal method to find critical path in fuzzy project networks International Journal of Scientific Research, Google scholar, -2013, 2, 70-71

RSA Public Key Cryptosystem using Modular Multiplication International Journal of Computer Applications, Google scholar, -2013, 80, 38-42

An approach to find optimal solution in fuzzy project network The Journal of Fuzzy Mathematics, Google scholar, -2013, 21, 981-992

Fuzzy Critical Path Method Based on Lexicographic Ordering Pakistan Journal of Statistics and Operation Research, Scopus, -2012, 8, 139-154

Ordering generalized trapezoidal fuzzy numbersInternational Journal of Contemporary Mathematical Sciences, Google scholar, -2012, 7, 555-573

A new approach for solving fuzzy critical path problem using LL fuzzy numbers Applied Mathematical sciences, Scopus, -2012, 6, 1303-1324

On the latest times and float times of activities in a fuzzy project network with LR fuzzy numbersInternational Journal of Fuzzy System Applications, Scopus, -2012, 2, 91-101

Critical path analysis in the network with fuzzy interval numbers as activity times International Journal of Engineering Science and Technology, Google scholar, -2012, 4, 823-832

Fuzzy risk analysis based on a new approach of ranking fuzzy numbers using orthocenter of centroidsInternational Journal of Computer Applications, EBSCO Host, -2012, 42, 24-36

Cryptanalysis of a Deniable Authentication Protocol based on Bilinear Pairing using Single Sender and Group Sender International Journal of Computer Applications, EBSCO Host, -2012, 41, 10-13

Ranking Generalized fuzzy numbers using area, mode, spreads and weights International journal of Applied Science and Engineering, Google scholar, -2012, 10, 41-57

Ordering Generalized Trapezoidal Fuzzy Numbers Using Orthocentre of CentroidsInternational Journal of Algebra, Google scholar, -2012, 6, 1069-1085

Ranking generalized fuzzy numbers using centroid of centroids Journal of Fuzzy Logic Systems , Google scholar, -2012, 2, 17-32

Effect of economic constraint on time cost tradeoff problem in project scheduling International Journal of Mathematical Archive, Google scholar, -2012, 3, 1-7

A Novel Modular Multiplication Algorithm and its Application to RSA Decryption International Journal of Computer Science Issues, EBSCO Host, -2012, 9, 303-309

Critical Path Method in a Project Network using Ant Colony Optimization International Journal of Computational Intelligence Research, EBSCO Host, -2011, 7, 7-16

Measuring Risk element criticality in a fuzzy project network using trapezoidal fuzzy number methodApplied Mathematical sciences, Scopus, -2011, 5, 529-539

Right skewed distribution of activity times in PERTInternational journal of Engineering science and technology, Google scholar, -2011, 3, 2932-2938

A new approach to evaluate characteristics involved in a fuzzy critical path methodAdvances in Fuzzy Mathematics, EBSCO Host, -2011, 6, 217-226

Ranking Fuzzy Numbers with a Distance Method using Circumcenter of Centroids and an Index of Modality Advances in fuzzy systems, Web of science, -2011, 2011, 1-7

Analysis of time estimates on right skewed distribution of activity times in PERT Journal of Statistics and Mathematics, Google scholar, -2011, 2, 15-22

Time, Cost and Quality tradeoff analysis in construction of projects Contemporary Engineering Sciences, Google scholar, -2011, 4, 289-299

Fuzzy critical path method in interval valued activity networks International Journal of pure and applied sciences and technology, Google scholar, -2011, 3, 72-79

On discriminating fuzzy numbers Turkish journal of fuzzy systems, EBSCO Host, -2011, 2, 122-138

Solving a Fuzzy Nonlinear Optimization problem by genetic algorithm International Journal of contemporary Mathematical sciences, Google scholar, -2010, 5, 791-803

Estimating the mean and variance of activity duration in PERTInternational Mathematical forum, Google scholar, -2010, 5, 861-868

An analytical method for finding critical path in a fuzzy project network International Journal of Contemporary Mathematical Sciences, Google scholar, -2010, 5, 953-962

Fuzzy critical path method based on metric distance ranking of fuzzy numbers International Journal of Mathematical analysis, Scopus, -2010, 4, 995-1006

The kronecker product of symmetric group representations using schur functions International Journal of Algebra, EBSCO Host, -2010, 4, 579-584

Dynamic reducts in object oriented information system using rough set theory International Journal of Engineering Science and Technology , Google scholar, -2010, 2, 122-136

Rough set model using lattice theory International Journal of Machine Intelligence, Google scholar, -2010, 2, 89-92

A New approach to find total float time and critical path in a fuzzy project networkInternational Journal of Engineering Science and Technology , Google scholar, -2010, 5, 600-609

Using modified Dijkstras algorithm for critical path method in a project network International Journal of Computational and Applied Mathematics, EBSCO Host, -2010, 5, 217-225

Reducts in Object Oriented Information SystemInternational Journal of contemporary Mathematical sciences, Google scholar, -2010, 5, 1771-1787

Genetic algorithm for object oriented reducts using rough set theoryInternational Journal of Algebra, Google scholar, -2010, 4, 827-842

Critical Path Analysis in the Fuzzy Project Network Advances in Fuzzy Mathematics, EBSCO Host, -2010, 5, 285-294

Discrete Time, Cost and Quality TradeOff Problem with renewable and Non renewable resourcesInternational Journal of Computational Science and Mathematics, Scopus, -2010, 2, 285-290

An approximation for the activity duration distribution, supporting original PERTApplied Mathematical Sciences, Scopus, -2009, 3, 2823-2834

Microsatellites role in HNF4A gene causing type 2 diabetes and MODY Advanced studies in Biology, EBSCO Host, -2009, 5, 231-242

A graphical approach to find the critical path in a project network Contemporary Engineering Sciences, Google scholar, -2009, 2, 553-558

Study of Microsatellites role in BRCA2 Gene causing pancreatic cancer and breast cancerJournal of Proteomics and Bioinformatics, Google scholar, -2008, 2, 33-35

Allowed multiplets and coordinate wave functions of the ammonia Acta Ciencia Indica, Google scholar, -2007, 33, 831-837

A graphical scheme for representing many electron spin free configurations International Journal of Quantum chemistry, Web of science, -2002, 86, 417-421

S Function identities and their inner productsJournal of Indian Academy of Mathematics, Google scholar, -1998, 20, 13-17

Title of the book Book / Chapter Name of the publisher Subject area Edition Page numbers ISBN Published year
Fuzzy Systems Concepts, Methodologies, Tools, and Applications Chapters Information Resources Management Association (USA) Fuzzy systems 1 1690-1702 DOI 10.40189 2017
Seminar name Organized by Venue Start date End date Title of the paper presented Role Co presenter
National Dept. of Applied Mathematics, Andhra University Andhra University 04-Apr-2014 05-Apr-2014 Participated
National GIS and public awareness division, DAE, Govt. of India, Mumbai GITAM 22-Feb-2012 23-Feb-2012 Participated
National GIS and I SERVE,Hyderabad GITAM 14-Sep-2011 15-Sep-2011 Participated
National Dept.of Mathematics, GIT, GITAM GITAM 15-Apr-2011 16-Apr-2011 Participated
National Dept. of Applied Mathematics, Andhra University Andhra University 09-Oct-2010 10-Oct-2010 Participated
National Dept.of Biochemistry and Bioinformatics,GIS GITAM 21-Jan-2010 21-Jan-2010 Participated
National GITAM GITAM 10-Oct-2009 10-Oct-2009 Participated
National Dept. of Applied Mathematics, Andhra University Andhra University 30-Jun-2004 01-Jul-2004 Participated
Seminar name Organized by Venue Start date End date Title of the paper presented Role Co presenter
Title of the thesis Name of the student Name of the college / university Major subject area Year of admission Type of admission Thesis specification
Title of the thesis Name of the student Name of the college / university Major subject area Year of admission Type of admission Thesis specification
Young Tableaux and Schur functions in Representation Theory of Permutation Groups Mr.A.Ganapathi Rao Applied Group Theory 2018 Part time PhD
Title of the thesis Name of the student Name of the college / university Major subject area Year of admission Type of admission Thesis specification
Various Concepts of Soft Sets in Topology & Decision Making A. Sreedevi Fuzzy soft sets 2017 Part time PhD
Critical Path Methods for Project Networks in Fuzzy Environment B.Pardha Saradhi Fuzzy critical Path methods 2017 Part time PhD
Project Scheduling Analysis and Risk Based Decision Analysis in Fuzzy Environment K. Usha Madhuri Fuzzy Mathematics 2015 Full time PhD
Project Network Analysis with Probabilistic and Fuzzy Activity Times K. Srinivasa Rao Operations Research & fuzzy Mathematics 2014 Part time PhD
Fuzzy Transportation Model and its Variants Y.L.P. Thorani Fuzzy transportation model 2014 Full time PhD
Novel Approaches for Critical Path Analysis in Probabilistic and Fuzzy Environments V.Sireesha Operations Research 2013 Part time PhD
Ranking Fuzzy Numbers Based on Centroids and its Application to Critical Path Analysis and Risk Analysis P. Phani Bushan Rao Operations Research & fuzzy Mathematics 2013 Part time PhD
Critical path analysis with probabilistic times D. Raghuram PERT and CPM 2012 Full time M.Phil
Fuzzy critical path method using trapezoidal fuzzy numbers S.Siresha Fuzzy project network 2011 Full time M.Phil
Fuzzy critical path method based on Metric distance ranking of fuzzy numbers N.Vani Project Management 2010 Full time M.Phil
A simplex method for piecewise linear fractional programming problems P. Rajesh Linear fractional programming 2007 Part time M.Phil
Title Type Organized by Venue Start date End date Role
Faculty development programme on operations Research Faculty development program GITAM Institute of International Business, GITAM GITAM 05-Dec-2008 06-Dec-2008 Participated
Refresher course Faculty development program UGC academic staff college, Andhra University Andhra University 30-Jun-2003 20-Jul-2003 Participated
Title Type Organized by Venue Start date End date Role
International Workshop on Transdisciplinary education and Research Quality improvement program Andhra University college of engineering Andhra University 23-Oct-2007 24-Oct-2007 Participated
Organization name Membership category Membership type
Institute of electrical & Electronics engineers Individual Member
Scholars Academic and Scientific Society Life Member
Andhra Pradesh Society for Mathematical Sciences Life Member
Operational Research Society of India Life Member
Indian Society of Industrial and Applied Mathematics Life Member
Indian Science Congress Association Life Member