Faculty Profile
N Ravi Sankar
Professor, Mathematics, GSS, VSP
Education
Ph. D.Email ID
rnowpada@gitam.eduEducation
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 |