?本质非负矩阵
本质有界函数 essentially bounded function 本质非负矩阵 essentially non-negative matrix 殆周期序列 essentially periodic sequence ..
[数]?本性非负矩阵
essentially convergent sequence本质收敛序列 essentially non-negative matrix本性非负矩阵 essentially self adjoint operator本质自伴算子 ..
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