51茶馆

51茶馆 hosted its first international workshop under the newly launched Meetings and Workshops Programme, marking an important step in its efforts to strengthen global academic exchange. The two-week workshop, Topics in Hodge Theory, took place from 5-16 January 2026 at 51茶馆 and was organised in collaboration with the International Centre for Theoretical Sciences (ICTS), Bengaluru.

Professor Somak Raychaudhury, Vice-Chancellor of 51茶馆, inaugurated the workshop in the presence of Professor K. VijayRaghavan, Chair of the Science Advisory Council, and Professor Gautam Menon, former Dean of Research at 51茶馆. The inaugural session highlighted the University鈥檚 commitment to advancing frontier research through sustained international collaboration.

The success of the workshop reflected the vision, dedication, and careful coordination of its organising committee. The scientific organisers were A. J. Parameswaran (Kerala School of Mathematics), Alessandro Ghigi (Universit脿 di Pavia, Italy), Carolina Tamborini (University of Duisburg鈥揈ssen, Germany), Elisabetta Colombo (Universit脿 degli Studi di Milano, Italy), and Manish Kumar (Indian Statistical Institute, Bengaluru). Dr. Ankita Rathore and Dr. Anupama Ambika Anilkumar from Ashoka Global Research Alliances served as local organisers and supported the launch of the inaugural workshop under the Meetings and Workshops Programme.

The workshop brought together around 90 participants and speakers from leading institutions across India, including IISc, TIFR, IISERs, CMI, and the IITs. It also welcomed a strong international cohort, with nearly 25鈥�30 participants travelling from outside India, enabling meaningful academic exchange globally.

Over two weeks, the workshop offered an intensive academic programme centred on a series of in-depth minicourses by experts in Hodge theory and related areas. Philippe Eyssidieux (Universit茅 Grenoble Alpes) presented an example-based survey of non-abelian Hodge theory and K盲hler groups. Claire Voisin (Centre national de la recherche scientifique, France) delivered a four-lecture minicourse on zero-cycles on Fano manifolds. Mihnea Popa (Harvard University, USA) spoke on singularities and Hodge theory, Gian Pietro Pirola (University of Pavia, Italy) discussed geometric applications of the infinitesimal invariant of normal functions, and Kapil Paranjape (Indian Institute of Science Education and Research, Mohali) presented a minicourse on Hodge-theoretic connectivity. Together, these courses gave participants a strong foundation and clear entry points into both classical and modern aspects of the subject.

Alongside the minicourses, the workshop featured a wide range of invited research lectures on contemporary themes in Hodge theory and algebraic geometry. Speakers included Arvind Nair (Tata Institute of Fundamental Research, Mumbai), Indranil Biswas (Shiv Nadar University), Bruno Klingler (Humboldt University of Berlin), Donu Arapura (Purdue University, USA), Yajnaseni Dutta (Leiden University), Thomas Kr盲mer (TU Chemnitz), James Lewis (University of Alberta), Utsav Chaudhury (Indian Statistical Institute, Kolkata), Souvik Goswami (IH脡S, France), Sorin Dumitrescu (Universit茅 C么te d鈥橝zur), Luigi Lombardi (University of Milan), Juan Carlos Naranjo (University of Barcelona, Spain), Charles Vial (University of Bielefeld), Irene Spelta (Humboldt University of Berlin), and Madhav Nori. These lectures addressed topics ranging from moduli spaces and monodromy to mixed Hodge structures, algebraic cycles, and derived categories, and encouraged sustained discussion throughout the workshop.

Overall, the workshop reaffirmed 51茶馆鈥檚 commitment to global academic engagement and frontier research, and helped seed future collaborations in specialised areas of mathematics and beyond. Beyond the formal sessions, speakers and participants explored Delhi together, with informal conversations and interactions playing an important role in shaping the workshop experience.