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The residual maximin share

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arxiv 2505.19961 v2 pith:6MPSM43V submitted 2025-05-26 cs.GT

classification cs.GT
keywords allocationsrmmssharevaluationslargeleastmaximinmonotone
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abstract

We consider fair allocations of indivisible goods to agents with general monotone valuations. We observe that it is useful to introduce a new share-based fairness notion, the {\em residual maximin share} (RMMS). This share is {\em feasible} and {\em self maximizing}. Its value is at least as large as the MXS for monotone valuations, and at least as large as $\frac{2}{3}$-MMS for additive valuations. Known techniques easily imply the existence of partial allocations that are both RMMS and EFX, and complete allocations that are both RMMS and EFL. This unifies and somewhat improves upon several different results from previous papers.

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  1. From multi-allocations to allocations, with subadditive valuations

    cs.GT 2025-06 conditional novelty 7.0 of 10

    A d-multi-allocation with subadditive valuations can be converted to an allocation losing only a factor of about d, yielding an Omega(1/log log n)-MMS guarantee.

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