| 2025 | IWCIA | Boustrophedon Pushdown Automata for Two-Dimensional Picture Languages. | Henning Fernau, R. Jennifer Rose, Robinson Thamburaj, D. Gnanaraj Thomas |
| 2022 | ISAIM | Pasting Systems with Picture Tiles Yielding Interesting Patterns. | S. Annadurai, T. T. Raman, T. Kalyani, D. Gnanaraj Thomas, P. Ravichandran |
| 2022 | ISAIM | P Systems on Hexagonal Picture Languages and Applications. | S. James Immanuel, S. Jayasankar, D. Gnanaraj Thomas |
| 2022 | ISAIM | Tetrahedral Picture Languages and their Applications in Imaging. | T. Kalyani, F. Sweety, D. Gnanaraj Thomas, K. Bhuvaneswari |
| 2022 | IWCIA | Adjunct Partial Array Token Petri Net Structure. | T. Kalyani, K. Sasikala, D. Gnanaraj Thomas, K. Bhuvaneswari |
| 2022 | IWCIA | A Myhill-Nerode Theorem for Finite State Matrix Automata and Finite Matrix Languages. | Abhisek Midya, D. Gnanaraj Thomas |
| 2022 | IWCIA | Weighted Three Directions OTA and Weighted Hexapolic Picture Automata. | Meenakshi Paramasivan, D. Gnanaraj Thomas |
| 2020 | IWCIA | Parallel Contextual Array Insertion Deletion Grammar and (Context-Free : Context-Free) Matrix Grammar. | S. Jayasankar, D. Gnanaraj Thomas, S. James Immanuel, Meenakshi Paramasivan, T. Robinson, Atulya K. Nagar |
| 2020 | IWCIA | 3D-Array Token Petri Nets Generating Tetrahedral Picture Languages. | T. Kalyani, K. Sasikala, D. Gnanaraj Thomas, Thamburaj Robinson, Atulya K. Nagar, Meenakshi Paramasivan |
| 2020 | IWCIA | Simulating Parallel Internal Column Contextual Array Grammars Using Two-Dimensional Parallel Restarting Automata with Multiple Windows. | Abhisek Midya, Frits W. Vaandrager, D. Gnanaraj Thomas, Chandrima Ghosh |
| 2018 | IWCIA | Parallel Contextual Array Insertion Deletion Grammar. | D. Gnanaraj Thomas, S. James Immanuel, Atulya K. Nagar, Robinson Thamburaj |
| 2017 | ICTAC | Polynomial Time Learner for Inferring Subclasses of Internal Contextual Grammars with Local Maximum Selectors. | Abhisek Midya, D. Gnanaraj Thomas, Saleem Malik, Alok Kumar Pani |
| 2017 | IWCIA | Parallel Contextual Array Insertion Deletion P System. | S. James Immanuel, D. Gnanaraj Thomas, Robinson Thamburaj, Atulya K. Nagar |
| 2017 | IWCIA | Polynomial Time Algorithm for Inferring Subclasses of Parallel Internal Column Contextual Array Languages. | Abhisek Midya, D. Gnanaraj Thomas, Alok Kumar Pani, Saleem Malik, Shaleen Bhatnagar |
| 2015 | IWCIA | Scanning Pictures the Boustrophedon Way. | Henning Fernau, Meenakshi Paramasivan, Markus L. Schmid, D. Gnanaraj Thomas |
| 2015 | IWCIA | Extension of Jumping Finite Automata to Two-Dimensional Languages. | S. James Immanuel, D. Gnanaraj Thomas |
| 2015 | IWCIA | Accepting H Iso-Array System. | V. Masilamani, D. K. Sheena Christy, D. Gnanaraj Thomas, Atulya K. Nagar, T. Robinson |
| 2012 | ICDCIT | Group Associated Petri Nets in Bio Computing. | K. Thirusangu, D. Gnanaraj Thomas, B. J. Balamurugan |
| 2011 | IWCIA | Shuffle on Trajectories over Finite Array Languages. | H. Geetha, D. Gnanaraj Thomas, T. Kalyani, A. S. Prasanna Venkatesan |
| 2011 | IWCIA | Petri Net Generating Hexagonal Arrays. | D. Lalitha, K. Rangarajan, D. Gnanaraj Thomas |
| 2009 | ISVC | Recognizability of Polyhexes by Tiling and Wang Systems. | H. Geetha, D. Gnanaraj Thomas, T. Kalyani, T. Robinson |
| 2009 | IWCIA | Parallel Contextual Hexagonal Array Grammars and Languages. | D. Gnanaraj Thomas, M. Humrosia Begam, N. Gnanamalar David |
| 2008 | ISVC | Collage of Hexagonal Arrays. | F. Sweety, D. Gnanaraj Thomas, T. Kalyani |
| 2008 | ISVC | Results on Hexagonal Tile Rewriting Grammars. | D. Gnanaraj Thomas, F. Sweety, T. Kalyani |
| 2008 | IWCIA | Rewriting PSystems Generating Iso-picture Languages. | S. Annadurai, D. Gnanaraj Thomas, V. Rajkumar Dare, T. Kalyani |
| 2004 | ICONIP | Local and Recognizable Iso Picture Languages. | T. Kalyani, V. Rajkumar Dare, D. Gnanaraj Thomas |
| 2003 | INDOCRYPT | Public Key Cryptosystems Based on Free Partially Commutative Monoids and Groups. | P. J. Abisha, D. Gnanaraj Thomas, K. G. Subramanian |
| 2003 | MFCS | Using Transitive-Closure Logic for Deciding Linear Properties of Monoids. | Christian Delhomm, Teodor Knapik, D. Gnanaraj Thomas |
| 2002 | INDOCRYPT | Tree Replacement and Public Key Cryptosystem. | S. C. Samuel, D. Gnanaraj Thomas, P. J. Abisha, K. G. Subramanian |
| 2001 | DNA | A Note on Graph Splicing Languages. | N. Gnanamalar David, K. G. Subramanian, D. Gnanaraj Thomas |
| 1993 | ALT | Thue Systems and DNA - A Learning Algorithm for a Subclass. | Rani Siromoney, D. Gnanaraj Thomas, K. G. Subramanian, V. Rajkumar Dare |