Inventory Pooling Under Heavy-Tailed Demand

发表于 Management Science, 2016. DOI: http://doi.org/10.1287/mnsc.2015.2204. Keywords: inventory management; inventory pooling; demand uncertainty; heavy-tailed distributions Area of review: operations management This paper considers a classic multilocation newsvendor setting following Eppen (1979), where the demand distribution is heavy tailed rather than……

Inverse of the sum of matrices

如果 $A, B$ 都是正定矩阵,那么: $$ (A + B)^{-1} = A^{-1}-A^{-1}(A^{-1} + B^{-1})^{-1}A^{-1} $$ 根据 $A^{-1}B^{-1}=(BA)^{-1}$ 可以得到: $$ (A + B)^{-1} = A^{-1} (A^{-1} + B^{-1})^{-1} B^{-1} $$……