WEEKLY ACTIVITIES

Seminar on Algebra and Number Theory
Algebraic integrable connections with bounded irregularity
Speaker: Prof. Takuro Mochizuki (Research Institute for Mathematical Sciences, Japan)

Seminar on Algebra and Number Theory
Primes of bad reduction of certain genus 2 curves
Speaker: Prof. Christophe Ritzenthaler (Executive Director of CIMPA)

Lectures on selected areas in Pure Mathematics
An aspect of the non-abelian Hodge theory: around wild harmonic bundles and twistor D-modules
Lecturer: Takuro Mochizuki (Kyoto)

Conference
HỘI THẢO "Một số vấn đề chọn lọc trong Giải tích biến phân và Ứng dụng"
Viện Toán học, ngày 19/11/2025

Seminar on Algebraic Geometry
On the motives of moduli space of parabolic Higgs bundles
Speaker: Đỗ Việt Cường (Đại học Khoa học Tự nhiên, Hà Nội)

Conference
Một ngày với Tối ưu và Tính toán khoa học
Hà Nội, ngày 26/11/2025

Seminar on Algebraic Geometry
On a braided monoidal Hall 2-category
Speaker: Hồ Phú Quốc (Hong Kong University of Science and Technology)

Seminar on Algebra and Number Theory
The Ordered Multiplicity Inverse Eigenvalue Sequence Problem, Powers Of Graphs, And More!
Speaker: Prof. Franklin H. J. Kenter (U.S. Naval Academy)

Seminar on Geometry and Topology
Optimality conditions at infinity in semialgebraic vector optimization
Speaker: Jiao Liguo (Northeast Normal University, China)

Seminar on Geometry and Topology
The Christoffel function: Some applications, connections and extensions
Speaker: Jean Bernard Lasserre (LAAS-CNRS University of Toulouse, France)

Seminar on Geometry and Topology
Deciding non-negativity of generic polynomials based on Sturm’s theorem
Speaker: Vũ Trung Hiếu (RIKEN Center for Advanced Intelligence Project, University of Tokyo, Japan)

Seminar on Geometry and Topology
A bounded degree hierarchy with SOS relaxations for classes of polynomial optimization problems
Speaker: Jae Hyoung Lee (Pukyong National University, Korea)

Seminar on Algebra and Number Theory
Goldbach Representations of an integer as a Sum of many primes
Speaker: Dr. Nguyen Thi Thu (PTIT)

Conference
Một số lớp bài toán tối ưu và cân bằng không lồi
Hà Nội, 10/10/2025

Seminar on Algebra and Number Theory
On curves of almost minimal degree
Speaker: Prof. Euisung Park (Korea University)

Conference
Các bất biến của mô đun trên vành giáo hoán: tính chất tiệm cận và liên quan.
Hà Nội, 21/10/2025

Seminar on Algebra and Number Theory
Extremal ideals and applications to symbolic powers and integral closure
Speaker Dr. Trung Chau (Chennai Mathematical Institute)

Seminar on Algebra and Number Theory
Persistence probabilities for random walks and related processes
Speaker: Prof. Kilian Raschel (Laboratoire Angevin de REcherche en MAthématiques)

Seminar on Algebraic Geometry
Block seminar on Harmonic Bundles II

Seminar on Algebra and Number Theory
Associated primes of powers of edge ideals of edge-weighted trees
Speaker: Prof. Tran Nam Trung (Institute of Mathematics-VAST)

Seminar on Geometry and Topology
3-dimensional crepant resolution and the McKay correspondence
Speaker: Yukari Ito (Kavli IPMU, The University of Tokyo, Japan)

Seminar on Geometry and Topology
Cohomology of Shimura varieties with torsion coefficients
Speaker:Nguyen Kieu Hieu (University of Versaille, France)

Seminar on Geometry and Topology
Geometrization of covering groups
Speaker: Yifei Zhao (University of Muenster, Germany)

Conference
International School: Arithmetic and Algebraic geometry Introduction to Langlands program
Hanoi, 17/9/2025 - 24/9/2025

Seminar on Algebra and Number Theory
Quasipolynomial growth in multigraded homological algebra
Speaker: Prof. Ezra Miller (Duke University)

Seminar on Algebra and Number Theory
Some research directions on Hopf algebras
Speaker: Prof. Nguyen Cat Van (U.S. Naval Academy)

Conference
Gặp gỡ Toán học 2025 - Hội thảo Khoa học các nhà nghiên cứu trẻ"
Đại học Sư phạm Hà Nội 2, 27 - 28/09/2025

Conference
Hội nghị toàn quốc lần thứ VII “Xác suất - Thống kê: Nghiên cứu, ứng dụng và giảng dạy”
Quy Nhơn, 04-08/08/2025

Seminar on Geometry and Topology
An effective way of constructing asymptotically conical Calabi--Yau manifolds
Speaker: Nghiem Tran Trung (Université Claude Bernard Lyon 1, France)

Seminar on Algebraic Geometry
Block seminar on Harmonic Bundles
Hanoi, Halong, August 21- 24, 2025

Seminar on Algebraic Geometry
Path integrals and the analogy between function fields and number fields
Speaker: Prof. Minhyong Kim (Đại học Edinburgh, Anh)

Seminar on Algebraic Geometry
Sources of flexibility in differential topology
Speaker: Patrick Massot (University Paris-Saclay)

Seminar on Analytic Geometry
Generalized polynomial Pell equation II
Báo cáo viên: Hồ Minh Toàn

Seminar on Algebra and Number Theory
Bounds on image sets of planar functions
Speaker: Prof. Steven Senger (Missouri State University)

Seminar on Geometry and Topology
Một số hướng nghiên cứu quan trọng liên quan đến lý thuyết kỳ dị, các lý thuyết lấy tích phân và lý thuyết số và một số chủ đề liên quan
Người báo cáo: Nguyễn Hữu Kiên (Viện Toán học)

Seminar on Algebraic Geometry
Landscaping wobbly Higgs bundles
Speaker: Prof. Ana Peón-Nieto (Department of Mathematics, USC)

Seminar on Algebraic Geometry
Reading seminar: Non-abelian Hodge theory in positive characteristics
Hòa Bình, Phú Thọ, 14-15/7/2025

Seminar on Algebra and Number Theory
Introduction to “syzygetic representation theory”
Speaker: Prof. Đào Hải Long (Kansas University)

Seminar on Geometry and Topology
Mixed multiplicities of equigenerated ideals
Speaker: Suprajo Das (Indian Institute of Technology, Madras)

Seminar on Algebraic Geometry
Factorization of symplectic and orthogonal matrices with holomorphic functions coefficients.
Speaker: Trần Phan Quốc Bảo (University of Bern)

Conference
International conference on commutative algebra to the memory of Jürgen Herzog

Seminar on Algebraic Geometry
Denef's style formula of twisted local zeta functions in terms of \QQ-resolution of singularities
Speaker: Nguyễn Hữu Kiên (Viện Toán học)

Seminar on Algebraic Geometry
Lifting of Abelian Covers from Characteristic $p$ to Characteristic $0$
Báo cáo viên: Đặng Quốc Huy (Binghamton University và VIASM)

Colloquium Lecture
Integrality in topology stemming from complex algebraic varieties
Báo cáo viên: Giáo sư Hélène Esnault, Freie Universität Berlin

Seminar on Analytic Geometry
Optimization of some quantum divergences on unitary orbit space.
Báo cáo viên: Nguyễn Phương Thùy

Seminar on Geometry and Topology
The topology of finite group actions on Riemann surfaces and of their moduli spaces.
Speaker: Fabio Perroni (University of Trieste)

Seminar on Geometry and Topology
The topology of finite group actions on Riemann surfaces and of their moduli spaces.
Speaker: Fabio Perroni (University of Trieste)

Seminar on Analytic Geometry
Generalized polynomial Pell equation
Báo cáo viên: Hồ Minh Toàn

Seminar on Algebra and Number Theory
Convex bodies and algebraic properties of graded families of ideals
Speaker: Tài Huy Hà (Tulane Uni.)

Seminar on Algebraic Geometry
Rational curves and Wobbly bundles
Speaker: Sarbeswar Pal (School of Mathematics - Indian Institute of Science Education and Research)