Scholar Visits

• Professor Apoorva Khare visited Plymouth University, UK, for a month.

• Dr. Abhay Jindal visited King's College London as part of the SPARC-supported collaboration.

• Dr. Prateek Kumar Vishwakarma visited Plymouth University, UK, through SPARC support.

• During this visit, he carried out part of the research that later led to a publication in the Journal of Algebra and an extended abstract accepted at FPSAC 2025. He expresses sincere gratitude for the support provided through the SPARC grant and fondly recalls his time in the UK.

Publications which have arisen out of this project

• Positivity preservers over finite fields by Dominique Guillot, Himanshu Gupta, Prateek Kumar Vishwakarma, and C.H. Yip, J. Algebra 684 (2025), 479–523.
  (Research partially carried out during Dr. Prateek’s SPARC-supported visit to Plymouth University.)
• Entrywise transforms and positive definite matrices over finite fields by Dominique Guillot, Himanshu Gupta, Prateek Kumar Vishwakarma, and C.H. Yip, Sém. Lothar. Combin. 93B (2025), Article #69.
  (Extended abstract accepted for FPSAC 2025, acknowledging SPARC.)
• Negativity-preserving Transforms of Tuples of Symmetric Matrices by Alexander Belton, Dominique Guillot, Apoorva Khare, and Mihai Putinar.

Future Activities

• Planned visits by Alexander Pushnitski and Michael Dritschel.
• A monograph by Tirthankar Bhattacharyya and Michael Dritschel is currently in preparation.