RAIRO - Operations Research

Open Access

New characterizations for the identical coupled tasks scheduling problem p. 325

Hatem Hadda and Mhamed Abdessalem

Published online: 15 March 2023

DOI: https://doi.org/10.1051/ro/2023014

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Open Access

Two modified conjugate gradient methods for solving unconstrained optimization and application p. 333

Abd Elhamid Mehamdia, Yacine Chaib and Tahar Bechouat

Published online: 15 March 2023

DOI: https://doi.org/10.1051/ro/2023010

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Open Access

The complex evolution of information quality improvement in competitive market p. 351

Fang Wu, Bing Liu and Na Fu

Published online: 15 March 2023

DOI: https://doi.org/10.1051/ro/2023013

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Open Access

Independent Roman bondage of graphs p. 371

Saeed Kosari, Jafar Amjadi, Mustapha Chellali and Seyed Mahmoud Sheikholeslami

Published online: 15 March 2023

DOI: https://doi.org/10.1051/ro/2023017

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Open Access

Total dominator total chromatic numbers of cycles and paths p. 383

Adel P. Kazemi and Farshad Kazemnejad

Published online: 15 March 2023

DOI: https://doi.org/10.1051/ro/2022183

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Open Access

Effect of fairness and overconfidence on pricing strategy of substitute bundles in a two-echelon supply chain p. 401

Sanchari Ganguly, Mithu Rani Kuiti, Pritha Das and Manoranjan Maiti

Published online: 15 March 2023

DOI: https://doi.org/10.1051/ro/2023009

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Open Access

An incentive mechanism for integration of business applications between organizations p. 427

Rasool Esmaeilyfard and Atefe Salehi

Published online: 15 March 2023

DOI: https://doi.org/10.1051/ro/2023024

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Open Access

Minimizing the number of edges in (P_k ∪ K₃)-saturated connected graphs p. 447

Yuying Li and Kexiang Xu

Published online: 15 March 2023

DOI: https://doi.org/10.1051/ro/2023018

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Open Access

A heterogeneous electric taxi fleet routing problem with recharging stations to maximize the company’s profit p. 459

Farnaz Nafarieh, Amir Aghsami, Erfan Rabbani and Masoud Rabbani

Published online: 21 March 2023

DOI: https://doi.org/10.1051/ro/2023006

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Open Access

Sustainable inventory prediction with random defect and rework using Bat algorithm p. 481

Madhu Jain, Nidhi Sharma and Praveendra Singh

Published online: 21 March 2023

DOI: https://doi.org/10.1051/ro/2023011

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Open Access

Screening third-party collectors’ double asymmetric information in a dual-channel closed-loop supply chain p. 503

Wenbin Wang, Ye Liu, Ni An and Luosheng Zhong

Published online: 21 March 2023

DOI: https://doi.org/10.1051/ro/2022214

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Open Access

Optimality conditions and duality results for a robust bi-level programming problem p. 525

Shivani Saini, Navdeep Kailey and Izhar Ahmad

Published online: 24 March 2023

DOI: https://doi.org/10.1051/ro/2023026

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Open Access

A descent modified HS conjugate gradient method with an optimal property p. 541

Fenfei Chen, Jiahao Zhang, Jianhao Ye and Zixin Chen

Published online: 27 March 2023

DOI: https://doi.org/10.1051/ro/2022184

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Open Access

Optimal pricing strategy of retailers considering speculative customers’ add-on items return behavior with cross-store full-reduction promotion p. 551

Sujuan Song, Wei Peng and Yuyang Zeng

Published online: 05 April 2023

DOI: https://doi.org/10.1051/ro/2023028

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Open Access

A new synergistic strategy for ranking restaurant locations: A decision-making approach based on the hexagonal fuzzy numbers p. 571

Kamal Hossain Gazi, Sankar Prasad Mondal, Banashree Chatterjee, Neha Ghorui, Arijit Ghosh and Debashis De

Published online: 05 April 2023

DOI: https://doi.org/10.1051/ro/2023025

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Open Access

Modelling low-carbon closed-loop supply chain considering channel power structures and cross-shareholding p. 609

Jiayi Sun, Lu Yang, Tianlin Shao and Fengmin Yao

Published online: 10 April 2023

DOI: https://doi.org/10.1051/ro/2023002

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Open Access

Conflict hypergraphs to define new families of facets for the independence system polytope p. 631

Chafia Boughani and Méziane Aïder

Published online: 10 April 2023

DOI: https://doi.org/10.1051/ro/2023015

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Open Access

Impact of subsidy phase-out and credit trading policy tools on the competitive strategies of Chinese passenger car enterprises p. 649

Bing Sun, Xue-ting Yang, Shen Zhong, Min Kang and Tian Liang

Published online: 10 April 2023

DOI: https://doi.org/10.1051/ro/2023012

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Open Access

Fast synergy approximation in transportation procurement with combinatorial auctions p. 677

Muhammed Emre Keskin, Chefi Triki and Adel Elomri

Published online: 28 April 2023

DOI: https://doi.org/10.1051/ro/2023022

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Open Access

Identifying approximate proper efficiency in an infinite dimensional space p. 697

Narges Hoseinpoor and Mehrdad Ghaznavi

Published online: 28 April 2023

DOI: https://doi.org/10.1051/ro/2023019

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Open Access

Single machine SLK/DIF due window assignment problem with general job-dependent positional effect and outsourcing operations p. 715

Chunlai Liu

Published online: 28 April 2023

DOI: https://doi.org/10.1051/ro/2023020

• Abstract
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Open Access

An improved algorithm on unbounded parallel-batching scheduling to minimize maximum cost and makespan p. 731

Cheng He, Jing Wu, Jinglei Xu and Junling Wang

Published online: 28 April 2023

DOI: https://doi.org/10.1051/ro/2023003

• Abstract
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Open Access

The optimized gate recurrent unit based on improved evolutionary algorithm to predict stock market returns p. 743

Chao Liu, Fengfeng Gao, Qi Zhao and Mengwan Zhang

Published online: 28 April 2023

DOI: https://doi.org/10.1051/ro/2023029

• Abstract
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Open Access

A bi-objective robust possibilistic cooperative gradual maximal covering model for relief supply chain with uncertainty p. 761

Najibeh Usefi, Mehdi Seifbarghy, Mitali Sarkar and Biswajit Sarkar

Published online: 28 April 2023

DOI: https://doi.org/10.1051/ro/2022204

• Abstract
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Open Access

Decision support system for managing multi-echelon supply chain networks against disruptions using adaptive fractional order control algorithm p. 787

Truong Ngoc Cuong, Hwan-Seong Kim, Le Ngoc Bao Long and Sam-Sang You

Published online: 28 April 2023

DOI: https://doi.org/10.1051/ro/2023035

• Abstract
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Open Access

A modified nonlinear conjugate gradient algorithm for unconstrained optimization and portfolio selection problems p. 817

Thamiso Diphofu, Professor Kaelo and Abebe R. Tufa

Published online: 28 April 2023

DOI: https://doi.org/10.1051/ro/2023037

• Abstract
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Open Access

Remarks on component factors in K_1,r-free graphs p. 837

Guowei Dai, Zan-Bo Zhang and Xiaoyan Zhang

Published online: 28 April 2023

DOI: https://doi.org/10.1051/ro/2023042

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Open Access

Toughness and isolated toughness conditions for path-factor critical covered graphs p. 847

Guowei Dai

Published online: 28 April 2023

DOI: https://doi.org/10.1051/ro/2023039

• Abstract
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Open Access

Polynomial algorithms for p-dispersion problems in a planar Pareto Front p. 857

Nicolas Dupin

Published online: 28 April 2023

DOI: https://doi.org/10.1051/ro/2023034

• Abstract
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Open Access

Optimal reinsurance and investment with a common shock and a random exit time p. 881

Zhiping Chen, Peng Yang and Yujie Gan

Published online: 28 April 2023

DOI: https://doi.org/10.1051/ro/2023036

• Abstract
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Open Access

A hybrid simulated annealing algorithm to estimate a better upper bound of the minimal total cost of a transportation problem with varying demands and supplies p. 913

Z. A. M. S. Juman, M. A. Hoque and Intesar Al-Mudahka

Published online: 08 May 2023

DOI: https://doi.org/10.1051/ro/2022152

• Abstract
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Open Access

On convergence of exponential penalty for the multi-dimensional variational problems p. 927

Anurag Jayswal and Ayushi Baranwal

Published online: 08 May 2023

DOI: https://doi.org/10.1051/ro/2023041

• Abstract
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Open Access

An integrated approach for the merger of small and medium-sized industrial units p. 939

Haniyeh Moazeni, Behrouz Arbab Shirani and Seyed Reza Hejazi

Published online: 08 May 2023

DOI: https://doi.org/10.1051/ro/2023027

• Abstract
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Open Access

Online promotion format selection for a supply chain with environment responsibility in an uncertain market p. 967

Qunli Wu, Xinxin Xu, Hengtian Wang and Ye Tian

Published online: 08 May 2023

DOI: https://doi.org/10.1051/ro/2023032

• Abstract
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Open Access

Decision making in fuzzy reasoning to solve a backorder economic order quantity model p. 993

Sujit Kumar De and Gour Chandra Mahata

Published online: 08 May 2023

DOI: https://doi.org/10.1051/ro/2023051

• Abstract
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