Invited research talks:

2014

• (1) 09.19. 2014. End of summer meeting in mathematical physics 2014, ETH Zürich: Cobordism invariants of the moduli space of stable pair.

• (2) 11.19.2014. Algebraic geometry and moduli seminar, ETH Zürich: Virtual cobordism classes and Chern numbers.

2015

• (3) 02.06.2015. Workshop - Motivic invariants related to K3 and abelian geometries, Humboldt–Universität zu Berlin: Euler characteristics and DT invariants in degree 0 for abelian varieties.

• (4) 05.22.2015. Algebraic geometry and moduli seminar, ETH Zürich: Motivic classes of generalized Kummer schemes via relative power structures.

2016

• (5) 01.18.2016. Seminar on Arithmetic Geometry, Universität Duisburg–Essen: Enumerative geometry of 3-folds and algebraic cobordism.

• (6) 06. 24.2016. Workshop - Curves on surfaces and 3-folds, CIB-EPFL: Algebraic cobordism and enumerative geometry of 3-folds.

• (7) 08.05.2016. Advanced school and workshop on moduli spaces, mirror symmetry, and enumerative geometry, ICTP, Trieste: Topological and motivic invariants for generalized Kummer schemes.

• (8) 09.27.2016. Harvard/MIT algebraic geometry seminar, Harvard University: Elliptic Calabi-Yau 3-folds, Jacobi forms, and derived categories.

• (9) 10.04.2016. Algebraic geometry seminar, Princeton University: Elliptic Calabi-Yau 3-folds, Jacobi forms, and derived categories.

• (10) Oct-Nov 2016. Algebraic geometry and moduli seminar, ETH Zürich: Lecture series on “curve counting invariants and derived categories”.

• (11) 11.29.2016. Seminar on “Hodge structures and rationality problems”, University of Zürich: The generalized Franchetta conjecture for K3 surfaces.

• (12) 12.17.2016. Beijing algebraic geometry colloquium, BICMR, Peking University: Elliptic Calabi-Yau 3-folds, Jacobi forms, and derived categories.

• (13) Dec 27 and 30, 2016. SCMS Seminar, Fudan University: Curve counting on elliptic Calabi-Yau 3-folds and Jacobi forms (I) and (II).

2017

• (14) 02.10.2017. Workshop - Moduli of curves, sheaves, and K3 surfaces, Humboldt-Universität zu Berlin: Modularity in curve counting theory for elliptic Calabi-Yau 3-folds.

• (15) 05.17.2017. Algebraic geometry and moduli seminar, ETH Zürich: Derived categories of K3 surfaces, O’Grady’s filtration, and Hyperk ̈ahler varieties.

• (16) 07.31.2017. SCMS Seminar, Fudan University: New calculations in curve counting theory for Calabi–Yau 3-folds.

• (17) 08.11.2017. Algebraic geometry seminar, BICMR: K3 categories, O’Grady’s filtration, and cubic fourfolds.

• (18)11.30.2017. Seminar Algebraic Geometry (SAG), MPI Bonn: K3 categories, cubic 4-folds, and the Beauville-Voisin conjecture.

2018

• (19) 01.29.2018. Algebra and geometry seminar, Caltech: K3 categories, cubic 4-folds, and the Beauville-Voisin conjecture.

• (20) 02.09.2018. Algebraic geometry seminar, Stanford University: K3 categories, cubic 4-folds, and the Beauville-Voisin conjecture.

• (21) 02.23.2018. Algebraic geometry and moduli seminar, ETH Zürich: K3 categories, cubic 4-folds, and the Beauville-Voisin filtration.

• (22) 05.16.2018. Arithmatic and algebraic geometry seminar, University of Amsterdam: Special subvarieties in holomorphic symplectic varieties.

• (23) 06.19.2018. Warwick algebraic geometry seminar, University of Warwick: Special subvarieties in holomorphic symplectic varieties.

• (24) 07.24.2018. Conference - Modern Algebraci Geometry, BICMR, Peking University: Special subvarieties in holomorphic symplectic varieties.

• (25) July 29 and 30, 2018. Geometry Seminar, Sun Yat-Sen University: Chow groups, derived categories, and K3 surfaces (I) and (II).

• (26) 08.24.2018. Workshop - higher genus Gromov–Witten invariants, Zhejiang University: Donaldson–Thomas theory for K3xE.

• (27) 09.18. 2018. Conference - Moduli spaces and related problems, Shanghai Center for Mathematical Science, Fudan University: Perverse filtrations, Hilbert schemes, and the P=W conjecture.

• (28) 09.25.2018. Harvard/MIT algebraic geometry seminar, Harvard University: Hilbert schemes and the P=W conjecture for parabolic Higgs bundles.

• (29) 09.26.2018. Geometry and Physics seminar, Boston University: Gromov-Witten invariants and special subvarieties in Hyperkähler varieties.

• (30) 10.18.2018. Geometry, Physics, and Representation Theory Seminar, Northeastern University: Special subvarieties in Hyperkähler varieties and Gromov-Witten theory.

• (31) 11.17.2018. South California Algebraic Geometry Seminar, UCLA: Perverse filtrations in hyper-Kähler geometry.

•  (32) 11.29.2018.  Bi-annual Algebraic and Tropical Meetings of Brown and Yale (BATMOBYLE), Yale University: Perverse filtrations, Higgs bundles, and hyper-Kähler geometry.

2019

• (33) 01.16.2019. Algebraic geometry and moduli seminar, ETH Zürich: Perverse filtrations, curve counting invariants, and hyper-Kähler geometry.

• (34) 02.11.2019. Geometric representation theory seminar, MIT:  Perverse filtrations, Hitchin systems, and hyper-Kähler geometry.

• (35) 02.18.2019. Geometry and physics seminar, University of Michigan: Perverse filtration, curve counting invartiants, and hyper-Kähler geometry.

• (36) 02.20.2019. Algebraic geometry seminar, Stony Brook University: Perverse filtration, Gopakumar-Vafa invariants, and hyper-Kähler geometry.

• (37) 03.14.2019. Algebraic geometry seminar, Boston College: Perverse filtrations, Hitchin systems, and hyper-Kähler geometry.

• (38)  05.29.2019. Algebra and geometry seminar, Caltech: Perverse sheaves, the Katz-Klemm-Vafa formula, and the P=W conjecture.

• (39)  07.15.2019. SCMS Seminar, Fudan University: Perverse sheaves, the Katz-Klemm-Vafa formula, and the P=W conjecture.

• (40) 10.15.2019. Algebraic geometry seminar, Johns Hopkins University: A tale of two Lagrangian fibrations.

• (41) 10.26. 2019. Shanghai-Boston mathematics conference: Hitchin systems and compact hyper-Kaehler geometry.

• (42) 10.28. 2019. Informal mathematical physics seminar, Columbia University: Hitchin systems, hyper-Kaehler geometry, and the P=W conjecture.

• (43) 11.11. 2019. Algebra and Number Theory seminar, University of Maryland:  Hitchin systems, hyper-Kaehler geometry, and the P=W conjecture.

• (44) 11.13.2019. Algebraic geometry seminar, University of Michigan: Hitchin systems, hyper-Kaehler geometry, and the P=W conjecture.

• (45) 12.03.2019. Harvard/MIT algebraic geometry seminar, MIT:  Compact hyper-Kaehler geometry and the P=W conjecture for Hitchin systems.

2020

• (46)  01.15.2020. JMM, AMS sectional meeting - Cohomological Field Theories and Wall crossings,  Denver, Colorado: Gopakumar-Vafa invariants and the P=W conjecture.

• (47)  Jan. 20,21,22, 2020. Workshop- Moduli of Higgs bundles and holomorphic symplectic varieties.  Lecture series: Hitchin fibrations, compact hyper-Kaehler geometry, and the P=W conjecture I,II,III. ETH Zurich.

• (48) Feb. 2020. Hausdorff School - Perverse sheaves in enumerative geometry, Hausdorff center for mathematics, Bonn. 

             Lecture 1 (Feb 11): An example of the Gopakumar-Vafa theory: the KKV formula revisited.

             Lecture 2 (Feb 13): Hitchin systems, hyper-Kaehler geometry, and the P=W conjecture.  

• (49) 02.20. 2020.  Geometric Langlands Seminar, University of Chicago: Hitchin systems, hyper-Kaehler geometry, and the P=W conjecture.

• (50) 02.28. 2020. Workshop - Quiver varieties, character varieties, and DT-invariants, IHP Paris: Hitchin systems, hyper-Kaehler geometry, and the P=W conjecture.

 (Talks that are cancelled due to the COVID 19 pandemic.)

•  03.13. 2020. Valley geometry seminar, UMass Amherst: Hitchin systems, compact hyper-Kaehler geometry, and the P=W conjecture.

•  03.26. 2020. Intercity Algebraic Geometry Seminar. Utrecht University.

•  03.28. 2020. AGNES. Stony Brook University.

•  06.23. 2020. Algebraic Geometry Seminar. ITS Austria.

•  06.25. 2020. Seminar Algebraic Geometry (SAG), MPI Bonn.

Talks resume:

• (51) 04.17. 2020. Algebraic Geometry Seminar, UCSD: Hitchin systems, compact hyper-Kaehler geometry, and the P=W conjecture.

• (52) 05.07. 2020. Geometry zoom seminar, University of Oregon: Hitchin systems, hyper-Kaehler geometry, and the P=W conjecture.

• (53) 05.14. 2020. SCMS-Fudan Algebraic Geometry Zoom Seminar, Fudan University: On the cohomology of the moduli of Higgs bundles.

• (54) 05.18. 2020. Zoom Algebraic Geometry Seminar, University of Amsterdam: Hitchin systems, hyper-Kaehler geometry, and the P=W conjecture.

• (55) 06.18. 2020. Zoom Algebraic Geometry and Number Theory seminar, IST Austria: On the topology of Hitchin fibrations.

• (56) 06.25. 2020. Zoom Algebraic Geometry Seminar, Bonn University: Higgs bundles, Vanishing cycles, and endoscopic decompositions.

• (57) 07.15. 2020. Yale Algebraic Geometry Zoom Seminar, Yale University: Cohomology of the moduli of Higgs bundles via vanishing cycles.

• (58) 09.22. 2020. Princeton Algebraic Geometry Seminar (zoom), Princeton University: Cohomology of the moduli of Higgs bundles, the Hausel-Thaddeus conjecture, and the P=W conjecture.

• (59) 09.25. 2020. Geomtetric representation seminar (zoom), University of Toronto: Cohomology of the moduli of Higgs bundles, the Hausel-Thaddeus conjecture, and the P=W conjecture

• (60) 10.06. 2020. ZAG (Zoom Algebraic Geometry Seminar): Cohomology of the moduli of Higgs bundles and the Hausel-Thaddeus conjecture.

• (61) 10.14. 2020. Colloquium, Department of Mathematics, Rutgers University -Newark: Cohomology of the moduli of Higgs bundles

• (62) 10.14. 2020. Topology and Geometry seminar, NUS: Cohomology of the moduli of Higgs bundles.

• (63) 10.22. 2020. Colloquium, Department of Mathematics, University of Kansas: Cohomology of the moduli of Higgs bundles. 

• (64) 10. 25. AGNES (Algebraic Geometry Northeastern Series), Stony Brook University: Hitchin Systems, hyper-Kaehler geometry, and the P=W conjecture (Video).

• (65) 11.05. 2020. Seminar on Geometry and Arithmetic, UC Santa Barbara: Cohomology of the moduli of Higgs bundles.

• (66) 11.06. 2020. Algebraic Geometry and Moduli Seminar, ETH Zurich: Cohomology of the moduli of Higgs bundles, the Hausel-Thaddeus conjecture, and vanishing cycles.

• (67) 12 .01. 2020. Special Colloquium, University of Waterloo: The P=W conjecture and hyper-Kaehler geometry.

• (68) 12. 02. 2020. Colloquium, University of Maryland: The P=W conjecture and hyper-Kaehler geometry.

• (69) 12. 04. 2020. the Canadian Mathematical Society 2020 Winter Meeting, Section "Algebraic Geometry of Integrable Systems": The \chi-independence of the moduli of 1-dimensional sheaves and the moduli of Higgs bundles.

• (70)12. 04. 2020. UBC Vancouver Algebraic Geometry Seminar:  Intersection cohomology of the moduli of 1-dimensional sheaves and the moduli of Higgs bundles.

• (71) 12.15. 2020. Colloquium, Texas A&M University: The P=W conjecture and hyper-Kaehler geometry.

• (72) 12.17. 2020. Algebra Seminar, UCLA: The P=W conjecture and hyper-Kaehler geometry.

• (73) Dec. ICCM 2020 Annual Meeting, Hefei: Cohomology of the moduli of Higgs bundles.

2021

• (74) 01.08. 2021(= 01.07 EST). Algebraic Geometry in East Asia (AGEA) Seminar: Intersection cohomology of the moduli of 1-dimensional sheaves and the moduli of Higgs bundles.

• (75) 01.18. 2021. VBAC (Vector Bundles on Algebraic Curves) webinar: Cohomology of the moduli of Higgs bundles.

• (76) 01.19. 2021. Special Department Colloquium, Columbia University: The P=W conjecture and hyper-Kaehler geometry.

• (77) 01.21. 2021. Colloquium, University of Notre Dame: The P=W conjecture and hyper-Kaehler geometry.

• (78) 01.25. 2021. Geometry/Physics Seminar, Northwestern University: The P=W conjecture and hyper-Kaehler geometry.

• (79) 01.28. 2021. Department Colloquium, University of Utah: The P=W conjecture and hyper-Kaehler geometry.

• (80) 01.29. 2021. Algebraic Geometry Seminar, University of Utah: Intersection cohomology of the moduli of 1-dimensional sheaves and the moduli of Higgs bundles. 

• (81) 02.02. 2021. Colloquium, University of Georgia: The P=W conjecture and hyper-Kaehler geometry.

• (82) 02.03. 2021. Colloquium, Yale University: The P=W conjecture and hyper-Kaehler geometry.

• (83) 03.09. 2021. CUHK Representation and Number Theory Seminar: Geometry of Gopakumar-Vafa theory.

• (84) 03.16. 2021. CUHK-Harvard-YMSC Joint Differential Geometry Seminar: Cohomology of the moduli of Higgs bundles and the Hausel-Thaddeus conjecture.

• (85) 03.22. 2021. Geometry, Symmetry, and Physics Seminar, Yale University: Intersection cohomology of the moduli of sheaves and Gopakumar-Vafa theory.

• (86) 05.04. 2021. Derived Seminar (online): Geometry of Gopakumar-Vafa theory.

• (87) 05.11. 2021. Group, Arithmetic, and algebraic geometry seminar, EPFL Lausanne: Intersection cohomology for the moduli of sheaves and Gopakumar-Vafa theory. 

• (88) 06.02. 2021. Geometry and Physics Seminar, IASM Zhejiang University: Cohomology of the moduli of Higgs bundles and the Hausel-Thaddeus conjecture.

• (89) 09.23, 09.28, and 10.07 (EST) 2021. Lecture series, AMSS Beijing.

             Lecture 1. The P=W conjecture and hyperKaehler geometry;

             Lecture 2. Cohomology of the moduli of Higgs bundles via positive characteristic;

             Lecture 3. Kaehler differentials, Lagrangian fibrations, and Hodge modules.

• (90) 11.12. 2021. Valley Geometry Seminar, UMass Amherst: Cohomology of the moduli of Higgs bundles via positive characteristic.

• (91) 11.24. 2021. Edingburgh Hodge seminar, University of Edingburgh.

            Pretalk. Non-perverse perverse filtrations.

            Main lecture. Cohomology of the moduli of Higgs bundles via positive characteristic.

• (92) 12.12. 2021. 2021四川大学代数与数论在线论坛, Sichuan University: Moduli of Higgs bundles and enumerative geometry.

2022

• (93) 05.21. 2022. Workshop - Topics in enumerative geometry, University of Oregon: From curve counting on K3 surfaces to holomorphic symplectic geometry.

• (94) 05.24. 2022. Topology seminar, University of Oregon: Hitchin systems, character varieties, and the P=W conjecture.

• (95) 06.29. 2022. Forschungsseminar "Algebraische Geometrie", Berlin: A tale of three moduli spaces.

• (96) 07.01. 2022. Workshop - P=W conjecture, Goethe-Universität Frankfurt: Symmetry of the cohomology of Hitchin moduli spaces and the P=W conjecture.

• (97) 08. 01. 2022. Conference -Derived categories, moduli spaces, and hyperkaehler varieties, University of Michigan: Fourier-Mukai transforms and the decomposition theorem for integrable systems.

• (98) 09. 15. 2022.  SCMS-Fudan Algebraic Geometry Seminar, Fudan University: The P=W conjecture for GLn.

• (99) 10.16. 2022. Special session "Geometry and arithmetic of hyperkaehler manifolds", AMS Fall 2022, Southeastern Sectional Meeting, University of Tennessee at Chattanooga: Cohomology of the moduli of Higgs bundles. 

• (100) 10.28. 2022. Geometric Methods in Representation Theory Seminar, University of North Carolina at Chapel Hill: The P=W conjecture for GLn.

• (101) 11.01. 2022. (= 11.02 Beijing time). The Greater Bay Area Geometry and Mathematical Physics Seminar: Topology of Hitchin systems -- Old and New.

• (102) 11.03. 2022 (= 11.04 Beijing time).  Tsinghua-USTC joint Seminars on Integrable Systems and Geometry: Refined BPS invariants and moduli of sheaves.

• (103) 11.14. 2022. Algebraic Geomtery Seminar, University of Illinois Chicago: The P=W conjecture for GLn.

• (104) 11.16. 2022.  Algebraic Geometry Seminar, Stony Brook University: The P=W conjecture for GLn.

• (105) 11.21. 2022. Algebraic Geometry Seminar, Princeton University: Geometry of the P=W conjecture.

2023

• (106) Jan 9,10,11, 2023. Program "Hyperkahler quotients, singularities, and quivers", SCGP Stony Brook. Lecture series: Hodge theory of Lagrangian fibrations I,II,III. 

• (107) 02.17. 2023. 6-th Westlake Math Forum, Westlake University, Hangzhou: Cohomology of the moduli of Higgs bundles I, II.

• (108) 03. 21. 2023. Harvard-MIT algebraic geometry seminar, MIT: Non-abelian Hodge theory and the P=W conjecture.

• (109) 04. 30. 2023. Georgia Algebraic Geometry Symposium, University of Georgia: Moduli of sheaves and BPS invariants.

• (110) 05.11. 2023. Conference on Higher Dimensional Geometry, Simons Center in Stony Brook: Cohomology of certain moduli of sheaves.

• (111) 05. 28. 2023. Workshop of the FRG special month of Ann Arbor on "Algebraic Geometry and Singularities in Positive and Mixed Characteristic", University of Michigan: Cohomology of the moduli of vector bundles and the moduli of Higgs bundles on a Riemann surface.

• (112) 07. 06. 2023. Conference on Derived Categories, Moduli spaces, and counting invariants, Imperial College London: Gopakumar-Vafa theory and moduli of sheaves.

• (113) 07.10. 2023. Workshop on Motives in moduli and representation theory, Nijmegen, Netherland: Cohomology of the moduli of vector bundles and the moduli of Higgs bundles on a Riemann surface.

• (114) July 17-21. 2023. AG summer school, SCMS, Fudan University, China: A minicourse on moduli of sheaves and the P=W conjecture (3 lectures, 5 hours).

• (115) 07. 28. 2023. Algebraic Geometry Seminar, Tongji University, China: Cohomology of the moduli of vector bundles and the moduli of Higgs bundles on a Riemann surface.

• (116) 08.09. 2023. Tianyuan algebraic geometry conference, Kunming, China: Cohomology of the moduli of vector bundles and the moduli of Higgs bundles on a Riemann surface.

• (117) 08.16. 2023. Colloquium, IASM, Hangzhou China: Perverse filtrations in geometry and topology.

• (118) 08.24. 2023. Algebraic Geometry Seminar, Shanghai Tech University, China: Cohomology of the moduli of vector bundles and the moduli of Higgs bundles on a Riemann surface.

• (119) 08.26. 2023. 5-th Kyoto-Nanjing workshop on Arithmetic and Geometry, Nanjing University, China: Perverse filtrations, compactified Jacobian, and Hitchin systems.

• (120) 09.03. 2023. Workshop on Geometry of HyperKähler varieties, BIRS-IASM, Hangzhou, China: Perverse filtrations and Fourier transforms.

• (121) Sep 11-15. 2023. Workshop on Categorified Enumerative Geometry and Representation Theory, EPFL Switzerland: Perverse filtrations and Fourier transforms.

• (122) 10.05. 2023. Algebraic Geometry Seminar, Boston College: Perverse filtrations and Fourier transforms.

• (123) 10.16. 2023. Informal Mathematical Physics Seminar, Columbia University: Perverse filtrations and Fourier transforms.

• (124) 10.20. 2023. Colloquium, YMSC at Tsinghua University, Beijing, China: Geometry of the P=W conjecture and beyond.

• (125) 11.02. 2023. Smith Colloquium, University of Kansas: Geometry of the P=W conjecture and beyond.

• (126) 11.08. 2023. Lie groups seminar, MIT: Fourier transforms and perverse filtrations for abelian fibrations.

• (127) Nov 20-24. 2023. Workshop Group Birational Geometry, HIM Bonn: Fourier transforms for abelian fibrations.

• (128) Nov 27- Dec 1. 2023. Colloquium and lecture series, University of Michigan:

       Colloquium (Nov. 28): Non-abelian Hodge theory and the P=W conjecture.

       Michigan Lecture series in Algebraic Geomtry (Nov. 29,30,31): New perspectives of the topology of algebraic maps. 

• (129) 12.14. 2023. Algebraic Geometry Seminar, SCMS, Fudan University: On generalized Beauville decompositions.                      

• (130) Dec 18-22. 2023. International conference on Gromov-Witten theory, Sun Yat-Sen University, Guangzhou, China: On refined BPS invariants for local curves and surfaces.

• (131) 12.26. 2023. Geometry Seminar, SUSTech, Shenzhen, China: Non-abelian Hodge theory and the P=W conjecture.

2024

• (132) 01.26. 2024. Algebraic geometry seminar, Stanford University: Geometry of the P=W conjecture and beyond.

• (133) 01.29. 2024. Arithmetic geometry seminar, UC Berkeley: Beauville decomposition, Fourier transform, and perverse filtration.

• (134) 02.16. 2024. Algebraic Geometry Seminar, Columbia University: On the generalized Beauville decomposition.

• (135) 02.29. 2024. Geometry, Physics, and Representation Theory Seminar, Northeastern University: Cohomology of abelian schemes and abelian fibrations.

• (136) 03.12. 2024. Algebraic Geometry Seminar, Johns Hopkins University: On the generalized Beauville decomposition.

• (137) 03. 27. 2024. Algebraic Geometry Seminar, University of Strasbourg: Cohomology and motives for the Hitchin system.

• (138) 04.08. 2024 - 04.12. 2024. Workshop on recent developments in noncommutative algebraic geometry, SL Math (MSRI): On the generalized Beauville decomposition.

• (139) 04. 17. 2024. GRASP (Geometry, Representations, And Some Physics) seminar: The P=W conjecture and Fourier transforms.

• (140) 05. 03. 2024. Seminar, CUHK, Hong Kong: Cohomology of the moduli of Higgs bundles.

• (141). May 7-9, 2024. Lecture series, HKUST:  

From abelian schemes to Hitchin systems: cohomology, sheaves, and algebraic cycles. I,II,III.

• (142) 05. 10. 2024. Colloquium, HKUST, Hong Kong: Non-abelian Hodge theory and the P=W conjecture.

• (143) May 20-22. Lecture series, Isaac Newton Institute, Cambridge: 

Fourier transform: from abelian schemes to Hitchin systems. I, II, III.

• (144) 06.04. 2024. Algebra Seminar, University of Vienna: Perverse filtrations and enumerative geometry.

• (145) 06.06. 2024. Algebra and Number Theory Seminar, IST Austria: Fourier transforms, algebraic cycles, and abelian fibrations.

• (146) June 17-21. 2024. Workshop on Moduli Stacks and Enumerative Geometry, Issac Newton Institute, Cambridge, UK: Chern classes, Fourier transforms, and perverse filtrations.

• (147) 07.09. 2024. Oberwolfach workshop on moduli space Algebraic Geometry: Wall Crossing and Moduli Spaces, Varieties and Derived Categories: Algebraic cycles and Hitchin systems.

• (148) July 14-19. 2024. The 4-th national algebraic geometry conference, Shandong University (Weihai), China: Algebraic cycles and Hitchin systems.

• (149) 09.26. 2024. Colloquium, Michigan State University: The D-equivalence conjecture and hyper-Kähler geometry.

• (150) 09/30-10/4, 2024. Clay Research Workshop on "The P=W conjecture in non-abelian Hodge theory", Oxford, UK: Tautological classes, perverse filtration, and Fourier transform.

• (151) 10.22. 2024. Colloquium, University of Rutgers-Newark: The D-equivalence conjecture and hyper-Kähler geometry.

• (152) 10.28. 2024. IAS/Princeton Arithmetic Geometry Seminar, Princeton: Motives of the Hitchin system.

• (153) 11.15. 2024. Valley Geometry Seminar, UMass Amherst: D-equivalence conjecture for hyper-Kähler varieties of K3[n]-type.

• (154) 11.23.2024- 01.14.2025: Lecture series, IASM Geometry and Physics seminar: Cohomology of the moduli of Higgs bundles I, II, III.

2025

• (155) 01.05. 2025. Algebraic Geometry Seminar, SCMS Fudan University: Derived category and birational geometry of hyper-Kaehler varieties.

• (156) 01.06. 2025. Lecture for the Best Paper Award, ICCM Shanghai: Geometry of the P=W conjecture and beyond. 

• (157) Feb 10-14. 2025. Workshop: recent developments in higher genus curve counting, SCGP Stony Brook: Perverse filtrations and refined Gopakumar-Vafa invariants for local surfaces.

• (158) March 3-7. Workshop on Enumerative geometry and Representation Theory, IPMU: Algebraic cycles on Hitchin fibrations.

• (159) 04. 14. 2025. Algebraic Geometry Seminar, University of Maryland: From abelian schemes to Hitchin systems.

• (160) 06. 18. 2025. Oberwolfach (New Trends in Algebraic Geometry): The D-equivalence conjecture for K3[n]-type.

• (161) 06. 21. 2025. A Saturday of moduli, ETH Zürich: Cohomology of compactified Jacobians.

• (162) 06. 24 - 07. 04, 2025. Summer school on "Enumerative Geometry and Geometric Representation Theory", University of Pisa. Minicourse, Decomposition Theorem for abelian fibrations (5 lectures).

• (163) 07. 08 - 07. 12. 2025. Speaker and mentor for the bootcamp for 2025 Algebraic Geometry Summer Research Institute, Colorado State University: Decomposition Theorem of algebraic maps and applications.

• (164) 07. 21 -07. 25. 2025, Plenary talks in the 2025 Summer Research Insitute (joint with Davesh Maulik): Moduli of Higgs bundles and the P=W conjecture I,II.

• (165)  07.21-07.25. 2025. 2nd Week Workshop "Enumerative Geometry" of the 2025 Summer Research Institute, Colorado State University: The intrinsic cohomology of the universal compactified Jacobians over the moduli of stable curves. 

• (166) 08.18- 08.22. 2025. Representation, Moduli, and Duality (concluding conference), EPFL Laussane: TBA.

• (167) 09.29 - 10.03. 2025. Clay Research Workshop on "Hodge theory and algebraic cycles", Oxford, UK: TBA.

• (168) 10.16. 2025. Algebra Seminar, Notre Dame University: TBA.

...

Some travel plans:

01.12 - 01.16. 2026: Winter school: "Geometry, Arithmetic, and Cohomology of higher dimensional varieties", Bologna, Italy.

07. 23 - 07. 30. 2026: ICM at Philadaphia, USA.

07. 05 - 07. 18. 2027: Summer school: "Local systems in algebraic geometry", IHES, France.