EFX: a simpler approach and an (almost) optimal guarantee via rainbow cycle number

H Akrami, N Alon, BR Chaudhury, J Garg… - Operations …, 2024 - pubsonline.informs.org
The existence of envy-freeness up to any good (EFX) allocations is a fundamental open
problem in discrete fair division. The goal is to determine the existence of an allocation of a …

Fair allocation in graphs

G Christodoulou, A Fiat, E Koutsoupias… - Proceedings of the 24th …, 2023 - dl.acm.org
We study envy freeness up to any good (EFX) in settings where valuations can be
represented via a graph of arbitrary size where vertices correspond to agents and edges to …

Temporal fair division of indivisible items

E Elkind, A Lam, M Latifian, TY Neoh, N Teh - arXiv preprint arXiv …, 2024 - arxiv.org
We study a fair division model where indivisible items arrive sequentially, and must be
allocated immediately and irrevocably. Previous work on online fair division has shown …

[HTML][HTML] Weighted fair division with matroid-rank valuations: Monotonicity and strategyproofness

W Suksompong, N Teh - Mathematical Social Sciences, 2023 - Elsevier
We study the problem of fairly allocating indivisible goods to agents with weights
corresponding to their entitlements. Previous work has shown that, when agents have binary …

Achieving Maximin Share and EFX/EF1 Guarantees Simultaneously

H Akrami, N Rathi - arXiv preprint arXiv:2409.01963, 2024 - arxiv.org
We study the problem of computing\emph {fair} divisions of a set of indivisible goods among
agents with\emph {additive} valuations. For the past many decades, the literature has …

EFX Allocations and Orientations on Bipartite Multi-graphs: A Complete Picture

M Afshinmehr, A Danaei, M Kazemi, K Mehlhorn… - arXiv preprint arXiv …, 2024 - arxiv.org
We consider the fundamental problem of fairly allocating a set of indivisible items among
agents having valuations that are represented by a multi-graph--here, agents appear as the …

Fair and efficient allocation of indivisible chores with surplus

H Akrami, BR Chaudhury, J Garg, K Mehlhorn… - arXiv preprint arXiv …, 2023 - arxiv.org
We study fair division of indivisible chores among $ n $ agents with additive disutility
functions. Two well-studied fairness notions for indivisible items are envy-freeness up to …

EF1 and EFX orientations

A Deligkas, E Eiben, TL Goldsmith… - arXiv preprint arXiv …, 2024 - arxiv.org
We study the problem of finding fair allocations--EF1 and EFX--of indivisible goods with
orientations. In an orientation, every agent gets items from their own predetermined set. For …

Fairly allocating (contiguous) dynamic indivisible items with few adjustments

M Yang - arXiv preprint arXiv:2209.03286, 2022 - arxiv.org
We study the problem of dynamically allocating $ T $ indivisible items to $ n $ agents with
the restriction that the allocation is fair all the time. Due to the negative results to achieve …

Randomized Strategyproof Mechanisms with Best of Both Worlds Fairness and Efficiency

A Sun, B Chen - arXiv preprint arXiv:2408.01027, 2024 - arxiv.org
We study the problem of mechanism design for allocating a set of indivisible items among
agents with private preferences on items. We are interested in such a mechanism that is …