In the power battery industry, selection of an appropriate sustainable recycling supplier (SCS) is a significant topic in circular supply chain management. Evaluating and selecting SCS for spent batteries considered complex multi-attribute group decision-making (MAGDM) problem closely related to environment, economy, society. The linguistic T-spherical fuzzy (Lt-SF) set (Lt-SFS) combination ter...

As an special intuitionistic fuzzy set defined on the real number set, triangular intuitionistic fuzzy number (TIFN) is a fundamental tool for quantifying an ill-known quantity. In order to model the decision maker's overall preference with mandatory requirements, it is necessary to develop some Bonferroni harmonic mean operators for TIFNs which can be used to effectively intergrate the informa...

This paper aims to propose a novel multi-attribute group decision-making (MAGDM) method based on interval-valued q-rung orthopair fuzzy sets (IVq-ROFSs). The IVq-ROFSs have been proved be effective in handling MAGDM problems, and several methods proposed. Nevertheless, it is worth pointing out that these approaches still some limitations, there exist realistic situations cannot solved by existi...

The cubic q -rung orthopair fuzzy set (Cq-ROFS) is a basic simplification of several notions, including (FS), interval valued FS (INVFS), intuitionistic (INTFS), id="M3"> (q-ROFS), and INV id="M4"> (INVq-ROFS). By the degrees INVq-ROFS q-ROFS, Cq-ROFS exposes judgement, this one advanced mathematical tools to handle more...

The aim of this paper is to develop the calculus hesitant fuzzy numbers (HFNs), have been recently proposed as newest extension sets. At first, based on willingness decision maker each part HFNs, a new method has compare them. Then, several t-norm and t-conorm-based aggregation operators i.e., algebraic t-conorm, Einstein Hamacher Frank t-conorm defined, some their mathematical properties are a...

In the context of increasingly competitive post-epidemic social marketing era, sustainable development supply chain finance is also facing impact more complex risk factors. However, issue concerning how to scientifically and reasonably select appropriate applicant company for financing cooperation on basis evaluation remains unresolved. For smooth operation banks’ (SSCF) business, this paper ai...

The linguistic interval-valued Pythagorean fuzzy (LIVPF) sets, which absorb the advantages of terms set and can efficiently describe decision makers’ evaluation information in multi-attribute group decision-making (MAGDM) problems. When investigating aggregation operators information, we have to consider two important issues, viz. operational rules LIVPF numbers functions. classical Archimedean...

Q-rung orthopair uncertain linguistic sets (q-ROULSs) are a powerful tool for describing ambiguity and uncertainty of information. In this study, considering that in most multi-attribute group decision making (MAGDM) problems, not only the quantitative evaluation information makers but also qualitative opinions should be considered. Therefore, we develop novel MAGDM method with unknown attribut...

Trapezoidal intuitionistic fuzzy numbers (TrIFNs) express abundant and flexible information in a suitable manner and  are very useful to depict the decision information in the procedure of decision making. In this paper, some new aggregation operators, such as, trapezoidal intuitionistic fuzzy weighted power harmonic mean (TrIFWPHM) operator, trapezoidal intuitionistic fuzzy ordered weighted po...