?>
JKLU boasts a distinguished faculty body comprising experienced academics and industry professionals.

Institute of Engineering & Technology
Dr. Sushant Pokhriyal holds a Ph.D. in Mathematics from Shiv Nadar University, India, with a thesis on invariant subspaces associated with near-isometry and unicellular operators. His research interests span Dynamical Systems, Operator Theory, Applied Harmonic Analysis, and Machine Learning, with a current focus on data-driven modeling and learning of nonlinear dynamical systems. He studies how finite-dimensional nonlinear dynamics can be embedded into infinite-dimensional function spaces, particularly Reproducing Kernel Hilbert Spaces (RKHS), using linear operators such as the Liouville and Koopman operators. A key component of his work is the integration of deep learning techniques to learn operator representations, latent coordinates, and reduced-order models directly from data, enabling scalable and interpretable modeling of complex dynamical processes. His research achievements include the CSIR-JRF (All India Rank 63) and GATE (All India Rank 268) qualifications.
2022 – Ph.D. in Mathematics
Advisor: Prof. Sneh Lata
Thesis: Invariant subspaces associated with near-isometry and unicellular operators
2014 – M.Sc. in Mathematics
2011 – B.Sc. (Hons.) in Mathematics
Pokhriyal, S., Lata, S., Singh, D. (2022). Multivariate Sub Hardy Hilbert Spaces invariant under the action of n-tuple of Finite Blaschke Factors. Journal of Mathematical Analysis and Applications.
Pokhriyal, S., Lata, S., Singh, D. (2023). Invariant Subspaces of Powers of Unicellular Operators. New York Journal of Mathematics.
Fractional-Order Dynamical Control using Kolmogorov-Arnold Networks, with Hongwei Chen, Joel A. Rosenfeld, and Tansel Yucelen.
Restricted Liouville Operators for the Study of Non-Analytic Dynamics within the Disc, with Joel A. Rosenfeld.
Integral Formulation of QENDy for Robust Nonlinear System Identification, with Nikhil Saran, Stefan Klus, Rushikhesh Kamalapurkar, and Joel A. Rosenfeld.
Compressed Liouville Operators for the Study of Non-Analytic Dynamics on RKHS, with Joel A. Rosenfeld.
Mori-Zwanzig Formalism of Dynamical Systems under the Action of Occupational Kernel, with Chukwuebuka Amagwula and Joel A. Rosenfeld.
Kernalized Active Subspace, with Joel A. Rosenfeld and Benjamin P. Russo (preprint ready).
Compressed Liouville Operators over the Paley Wiener Space for System Approximation, with Joel A. Rosenfeld (preprint ready).
Invited Talk (2 Days Session) – Workshop on Mathematics, Applications in AI and Data Science, Dec 20–21, 2025, Banasthali Vidyapith.
Session Chair – 41st SEAM, 2025, University of South Florida.
Presented: "Multivariable Sub Hardy Hilbert Spaces Invariant under the Action of Finite Blaschke Factors", 40th SEAM, University of Florida, 2023.
Presented: "Invariant Subspaces of Powers of Some Unicellular Operators", Jan 2023, IIT Kanpur.
Presented: "Invariant Subspaces of Powers of Some Unicellular Operators", NCPMA-RAMAA, May 2022, DST-CIMS, Institute of Science, BHU.
Focus Program on Analytic Function Spaces and Their Applications, July–Dec 2021, Fields Institute, Canada (Enrolled).
Presented: "Multivariable Sub Hardy Hilbert Spaces Invariant under the Action of Finite Blaschke Factors", 35th RMSCON, Central University of Rajasthan, 2020.
AIS Operator Theory, 16–28 Dec 2019, IIT Kanpur (Attended).
ATM School for Modern Aspects of Function Theory, Operator Theory and Operator Algebras, Dec 2018, ISI Bangalore.
MAC2283 – Engineering Calculus III (Fall 2023, Spring 2024)
MAP2302 – Differential Equations (Spring 2024, Fall 2025)
Research & Teaching Expertise
Research Positions
Postdoctoral Researcher, University of South Florida, Tampa, USA. (Aug 2023 – Aug 2025). Host: Prof. Joel A. Rosenfeld.
Visiting Scientist, Indian Statistical Institute, Bangalore, India. (Feb – May 2023). Host: Prof. Jaydeb Sarkar.
Research Assistant, Shiv Nadar University, Greater Noida, India. (Aug – Dec 2022). Host: Prof. Sneh Lata.
Academic Faculty
Primary Instructor, University of South Florida, Tampa, USA. (Aug 2023 – Aug 2025).
Reviewer Experience
Professional Service
Session Chair, 41st SEAM, 2025, University of South Florida.
Awards & Honours
Skills
References
Prof. Sneh Lata (Ph.D. Thesis Supervisor)
Department of Mathematics, Shiv Nadar Institute of Eminence, Dadri–201314, Uttar Pradesh, India
Email: [email protected]
Prof. Joel A. Rosenfeld (Postdoc Advisor)
Department of Mathematics and Statistics, University of South Florida, Tampa, FL, USA
Email: [email protected]
Prof. Priyanka Grover (Ph.D. Committee Member)
Department of Mathematics, Shiv Nadar Institute of Eminence, Dadri–201314, Uttar Pradesh, India
Email: [email protected]