2025

1. From full vertex operator algebras to correlation functions: Bridging Algebra and Analysis, CFT: Algebra, topology and probability, Sep 28 - Oct 5, CNRS, Paris.

2. 共形場理論入門, 超対称共形場理論とミラー対称性, ミラー対称性の諸相2025, Chiba university, Sep 22 - 23.

3. Bootstrap equation and Wick rotation in two-dimensional conformal field theory, 場の理論と弦理論2025, YITP, Kyoto, July 28-Aug 1.

4. On mathematical formulations of conformal field theory, RIKEN Theory symposium, Riken, July 9-10, 2025.

5. On functorial conformal field theory, Mathematics and Physics of Gauge Theories, Kanagawa, July 3-6.

6. Mathematical formulation of conformal field theory and quantum invariants, geometry seminar, Osaka university, June 16, 2025.

7. Mathematical formulation of conformal field theory and quantum invariants, Differential geometry and topology seminar, Keio university, June 12, 2025.

8. Supersymmetric 2d conformal field theory, full vertex operator algebra and mirror symmetry, Kyoto Representation theory seminar, May 29, 2025.

9. Supersymmetric 2d conformal field theory and mirror symmetry, Algebraic Lie Theory and Representation Theory 2025, May 23-26.

10. Supersymmetric 2d conformal field theory and mirror symmetry, Emmy-Noether seminar, Erlangen university, Math , 2025, May 2.

11.  Two-dimensional conformal field theory and topological field theory, Chiba University geometry seminar, Jan 20.

2024

1. Consistency of 2d Conformal field theory with boundary and Swiss-cheese operad, Nagoya Math-Phys seminar, Oct 4.

2.  Operator product expansion and spacetime operad, KEK, Sep 10.

3. Algebraic structure of space-time geometry and operator product expansion, NCTS-iTHEMS Joint Workshop on Matters to Spacetime: Symmetries and Geometry, Taiwan, Aug 26-30.

4. Introduction to QFT, Factorization algebra and related topic, Shizuoka, Aug 12-14.

5.  Conformal blocks of vertex operator algebra and parenthesized braid operad, AMS-UMI international Joint Meeting, July 23-26, 2024.

6. Conformal block, braided operad and factorization, Erlangen university, mathematical physics seminar, June 6

7. Braided tensor category and vertex operator algebra with examples, Ningbo university, March 8.

8. Conformal block, braided multicategory and factorization, Topics on mathematical structures in string theory, Komaba, Feb 8-9.

2023

1. Operator product expansion in two-dimension conformal field theory, Mathematical Aspects of Quantum Fields and. Related Topics, RIMS, December 4, 2023.

2.  Operator product expansion in two-dimension conformal field theory, Seminar at Roma University, Nobermber 22, 2023.

3.  Non-topological quantum field theory by full vertex algebra, seminar, September 2023, Riken. 

4. On the operad structure of moduli spaces and the consistency of non-chiral conformal field theory, Representation Theory XVIII, June 25 - July 1, 2023, Dubrovnik (Croatia)

5. Bootstrap hypothesis in two-dimension and the operad structure on moduli spaces, CREST Research Seminar on "Theoretical studies of topological phases of matter", June 9, 2023 (online)

6.  Two-dimensional conformal field theory and quantum coordinate ring, Tokyo Tech Representation Theory Seminar, May 26, 2023.

7.  Sewing of conformal blocks of vertex operator algebra and braided tensor category, Invitation to Recursion, Resurgence and Combinatorics, OIST (Okinawa), April 3 - 15, 2023.

8.  Vertex operator algebra, braided tensor category and colored parenthesized braid operad, Representation theory and geometry of loop space, Laboratoire de Mathématiques d'Orsay, France, January, 2023.