adjoint hilbert problem 伴随希耳伯特问题
nonlinear riemann-hilbert problem 非线性riemann
generalized riemann-hilbert problem 广义riemann
regular riemann-hilbert problem 正规riemann
discontinuous riemann hilbert problem 间断黎曼
hilbert boundary value problem hilbert边值问题
generalized hilbert boundary value problem 广义hilbert边值问题
hilbert th problem 希尔伯特第17问题
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