Research
I am constructing surfaces equipped with line fields via structured graphs and crossed simplicial group formalism.
Publications
Perturbative versus Non-Perturbative Renormalization. Sridhar Hariharakrishnan, Ulrich D. Jentschura, István Gábor Márián, Krisztian Szábó , István Nándori. Journal of Physics G: Nuclear and Particle Physics, Volume 51, Number 8, 085005 (doi:10.1088/1361-6471/ad5744). [2024]
Talks
Conformal Field Theories and Vertex Operator Algebras Student Seminar [Winter 2024/25]: I gave three talks on:
Conformal Transformations.
Wightman Axioms.
Operator Product Expansion (OPE) and Wick's theorem.
Equivariant Cohomology & Atiyah-Singer Index theorem [Summer 2025]: I gave two talks on:
Motivation of equivariant cohomology and defintion of G*-modules.
Equivariant cohomology of G*-algebras.
Low-Dimensional Topology [Summer 2025]: I gave a talk on 2D-TQFTs, Frobenius algebras and their relation to Khovanov homology: Notes.
Notes
I attended the Quantum Field Theory 1 course taught by Prof. Timo Weigand and added some missing details/calculations in his notes:
Annotated notes and whenever I say DD-x (x being a number), look up section x (indicated at top left corner from page 15 onwards) in supplementary notes.