Publications

1. Kumar, Akshay and R. Radha: “Structure of solution to the Riemann problem for Granular flows.” Communicated.

2. Kumar, Akshay, R. Radha and K. Ambika: ''Riemann problems for pressure gradient system." Communicated.

3. Kumar, Akshay and R. Radha: “Shock wave interactions for a rate-type material model.” Applicable Analysis, (2025) 1–20. 

https://doi.org/10.1080/00036811.2025.2489471  

4. Kumar, Akshay and R. Radh.: “Riemann problems for generalized gas dynamics." Studies in Applied Mathematics. 150 (2023) 1154-1181.

 https://doi.org/10.1111/sapm.12565

5. Kumar, Akshay and R. Radha: “Riemann problem for the Chaplygin gas equations for several classes of non-constant initial data.” European Journal of Mechanics-B/Fluids 91 (2022) 121-127. https://doi.org/10.1016/j.euromechflu.2021.09.013 

6.  R. Radha, V. D. Sharma and Kumar, Akshay: “Riemann problem for rate-type materials with non-constant initial conditions.” Mathematical Methods in the Applied Sciences 44 18 (2021) 13866-13880. https://doi.org/10.1002/mma.7663