This is one of the most well-known papers on Lagrangian relaxation , produced by Fisher:
http://yalma.fime.uanl.mx/~roger/work/teaching/mecbs5100/papers/lagrangean%20relaxation/int-1985-Fisher.pdf

If you see, on page 13 (the number of the page as it is written on the document), it says that the derivative of the Lagrangian Problem function is : 8x1 + 2x2 + x3+ 4x4 - 10. But if you calculate it , you find : -8x1 - 2x2 - x3- 4x4 + 10. Did he do such a basic mistake, or am I so wrong here ?

asked 07 Nov '15, 06:25

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Asked: 07 Nov '15, 06:25

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