Sum of Hermitian squares

Người báo cáo:

Thời gian: 14:30 ngày 29/06/2026

Địa điểm: Phòng 301- nhà A5

Tóm tắt: This talk discusses the representation of positive real polynomials in Hermitian matrix variables as sums of squares. Motivated by questions in real algebraic geometry, operator theory, and quantum information, we investigate when a polynomial that is nonnegative on tuples of Hermitian matrices admits a decomposition into sums of Hermitian squares.

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Xuất bản mới
Đỗ Duy Hiếu, Block-pair edge community detection in bipartite networks via an adaptive spectral-modularity framework, Computational and Mathematical Organization Theory, Volume 32, article number 31 (2026)
Đoàn Thái Sơn, Generic properties of the Lyapunov spectrum of compact operator cocycles on Hilbert spaces, Journal of Mathematical Analysis and Applications, Article: 131103 Volume: Volume 566, Issue 2 (2027)