Research
Interests: ergodic theory, dynamical systems and machine learning.
Dynamical systems and ergodic theory
Journal articles
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2023Slow entropy of some combinatorial constructionsNonlinearity 36 (2023), no. 6, 2923–2974.
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2023Slow entropy for some Anosov–Katok diffeomorphismsDiscrete and Continuous Dynamical Systems 43 (2023), 209–255.
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2022Real-analytic realization of Uniform Circular Systems and some applicationsJournal d’Analyse Mathématique 148 (2022), no. 2, 399–445.
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2019Real-analytic AbC constructions on the torusErgodic Theory and Dynamical Systems 39 (2019), no. 10, 2643–2688.
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2017Non-standard real-analytic realizations of some rotations of the circleErgodic Theory and Dynamical Systems 37 (2017), no. 5, 1369–1386.
Preprints and notes
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2024
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2017Real-analytic diffeomorphisms with homogeneous spectrum and disjointness of convolutionsPreprint.
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NotesInformation and entropy in dynamical systems: an introductionUnpublished notes of the Będlewo lectures delivered by F. Ledrappier.
Machine learning
Conference proceedings
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2022SAU: Smooth activation function using convolution with approximate identitiesComputer Vision – ECCV 2022, Lecture Notes in Computer Science 13681, Springer, Cham.
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2022Smooth Maximum Unit: Smooth activation function for deep networks using smoothing maximum techniqueProceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2022, 784–793.
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2022ErfAct and Pserf: Non-monotonic smooth trainable activation functionsProceedings of the AAAI Conference on Artificial Intelligence 36 (2022), no. 6, 6097–6105.
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2021EIS: Efficient and trainable activation functions for better accuracy and performanceArtificial Neural Networks and Machine Learning – ICANN 2021, Lecture Notes in Computer Science 12892, Springer, Cham.
Journal articles
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2021TanhSoft: Dynamic trainable activation functions for faster learning and better performanceIEEE Access 9 (2021), 120613–120623.
Preprints
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2021Orthogonal-Padé activation functions: Trainable activation functions for smooth and faster convergence in deep networksPreprint.
Other areas
Journal articles
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2024Ergodic and mixing quantum channels: From two-qubit to many-body quantum systemsPhysical Review A 110 (2024), no. 4, 042607.
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2019Revisiting the use of squared magnitude function for the optimal approximation of (1+α)-order Butterworth filterAEU – International Journal of Electronics and Communications 110 (2019).
Talks and mini-courses
2026
- AugColloquium, Harish-Chandra Research Institute, Prayagraj
- JulSeminar, Indian Institute of Science Education and Research Kolkata
- JunSeminar, Bhaskaracharya Pratishthana, Pune
- MayISQGD–SS11: Structural and Path-Space Perspectives in Dynamical Systems Online
2025
- MarWorkshop on Dynamics and Related Topics, Institute for Mathematical Sciences, National University of Singapore
2024
- OctSpecial Lecture Series, Indian Institute of Technology Tirupati
- AprTopology & Geometry Seminar, National University of Singapore
2023
- MarPi-Day Seminar, Indian Institute of Technology Tirupati
2022
- NovSeminar, Indian Institute of Science Education and Research Tirupati
- SepETDS Seminar, Tata Institute of Fundamental Research, Mumbai Online
- JunColloquium, TIFR Centre for Applicable Mathematics, Bangalore
2021
- MayLowlands Dynamics Seminar (joint with P. Kunde), Vrije Universiteit Amsterdam and Universität Hamburg Online
2020
- NovDepartment of Mathematics and Statistics Webinar, Indian Institute of Technology Tirupati Online
- Oct–NovErgodic theory, classification theorems, and holomorphic dynamics, mini-course (joint with S. Mukherjee), Indian Institute of Science Education and Research Kolkata Online
2019
- SepMathematics Seminar, Jawaharlal Nehru University, Delhi
- AugFaculty Development Program, Shivaji College and Hansraj College, Delhi
2015
- MarDynamical Systems Seminar, The Pennsylvania State University
2013
- MarGaussian dynamical systems (three-part mini-series), Working Seminar: Dynamics and its Working Tools, The Pennsylvania State University