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The systematic study of quadratic forms originated from the discussion of the classification of quadratic curves and quadratic surfaces. Mathematicians such as Hilbert, Hellinger, Toeplitz, and Hausdorff have systematically studied quadratic forms.

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Numerical Range Theory of Infinite-Dimensional Hamiltonian Operators

  • 章节

  • 发表日期：

    2026年

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  • Alatancang Chen,
  • Deyu Wu,
  • Junjie Huang,
  • Guolin Hou

摘要

The systematic study of quadratic forms originated from the discussion of the classification of quadratic curves and quadratic surfaces. Mathematicians such as Hilbert, Hellinger, Toeplitz, and Hausdorff have systematically studied quadratic forms.