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Timeline for Name of operations on two vectors

Current License: CC BY-SA 3.0

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Jun 23, 2023 at 9:14 comment added Dirk Just wanted to add, that this operation appears naturally in the context of optimal transport (popped up in doi.org/10.1007/s00245-019-09614-w e.g.).
Jun 18, 2013 at 6:24 comment added Federico Poloni Yes, you are correct.
Jun 17, 2013 at 20:11 comment added Fedor Nikitin There are two vectors of ones $e_m$ and $e_n$ should be above because I assume that $x$ and $y$ are of dimensions.
Jun 17, 2013 at 15:50 history answered Federico Poloni CC BY-SA 3.0