The HEWC problem was formulated as an integer linear program, and an approximation solution was obtained by using LP-relation and rounding heuristic.

HEWC问题第一次被归结为一个整数线性规划问题，并且利用LP的放松问题和有界启发得到一个近似解。

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In this paper the linear triangular finite element approximation to the Parabolic Problem in the domain with curved boundaries is studied.

讨论线性三角形单元对曲边区域上半离散格式下抛物问题的有限元误差分析。

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In this paper, we consider the best approximation of a matrix under a given linear restriction with some fixed elements. This result can be apply to solving a class matrix inverse eigenvalue problem.

本文研究具有某些固定元素的矩阵在线性约束下的最佳逼近，其结果可以用于解一类矩阵反特征值问题。

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