Suman Maity

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Verified

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• Doctor of Philosophy
• State Aided College Teacher at Raja Narendralal Khan Women's College

Physical dynamical systems can be described through mathematical models using the theory of differential equations. Many different types of uncertain healing occur in the real-world. Fuzzy logic is an effective mathematical tool for defining the sense of non-random uncertainty. Since fuzzy arithmetic differs from its counterparts, it would be more...

In this paper, we have developed an economic order quantity (EOQ) model for degrading items in which two decision-makers collaborate to make decision, one of them acting as the industrialist (developer) and the other as the accountable manager. Although, customers’ income might create a vital impact on the demand rate of the products. But none of t...

Nowadays, many inventory practitioners give special attention to green inventory problems incorporating carbon emission issues throughout the world. In this study, a green inventory model is considered where the demand rate depends on selling price, stock and green concern level. The holding cost is considered a quadratic function of time, and pres...

This article presents a three-echelon supply chain (SC) model incorporating of a single supplier, single manufacturer, and a single wholesaler under fuzzy system. Three scenarios have been considered: a) the learning effect (LE) of the employees on the production cost as well as the return contract (RC) between the supplier and an outside supplier...

The present article was developed for the economic order quantity (EOQ) inventory model under daytime, non-random, uncertain demand. In any inventory management problem, several parameters are involved that are basically flexible in nature with the progress of time. This model can be split into three different sub-models, assuming the demand rate a...

Nowadays, many inventory practitioners give special attention to green inventory problems incorporating carbon emission issues throughout the world. In this study, a green inventory model is considered where the demand rate depends on selling price, stock and green concern level. The holding cost is considered a quadratic function of time, and pres...

Fuzzy matrices play a vital role in handling different models in an uncertain environment. In this paper, we have defined the row-average-max norm of fuzzy matrices. We also investigated some properties and lemma of the row-average-max norm of the fuzzy matrix. Keywords: Norm of a fuzzy matrix, row-average-max norm of fuzzy matrix, properties of ro...

Fuzzy matrices helps to solve different types of model in a fuzzy environment. In this paper, we have defined a norm on fuzzy matrices, the namely column-average-max norm. We also investigated different properties and lemma of this norm. Keywords: Norm of a fuzzy matrix, column-average-max norm, properties of the column-average-max norm.

In this study, an economic production quantity (EPQ) model with deterioration is developed where the production rate is stock dependent and the demand rate is unit selling price and stock dependent. The low unit selling price and more stocks correspond high demandbut more stock corresponds to slow production because of the avoidance of unnecessary...

This article deals with an economic order quantity inventory model of imperfect items under non-random uncertain demand. Here we consider the customers screen the imperfect items during the selling period. After a certain period of time, the imperfect items are sold at a discounted price. We split the model into three cases, assuming that the deman...

This study explores carbon emission issues over production manufacturing system with the context of joint inventory control and sustainable trade credit financing for deteriorating items in a supplier-retailer-customer model under volumetric fuzzy system. Here, the supplier offers an upstream full trade credit to the retailer and the retailer in tu...

In this article, we envisage the hexagonal number from various distinct rational perspectives and viewpoints to give it a look of a conundrum. Hexagonal fuzzy number is used as an authoritative logic to ease understanding of vagueness information. This article portrays an impression of different representation, ranking, defuzzification and applicat...

In this article, the parabolic dense fuzzy set is defined, and its basic arithmetic operations are studied with graphical illustration. The lock set concept is incorporated in a parabolic dense fuzzy set. Then, it is applied to the problems of fishery culture via the modeling of an economic order quantity model. Here, the fingerlings are fed to rea...

This paper deals with a backorder inventory problem under intuitionistic dense fuzzy environment. In fuzzy set theory, the concept of dense fuzzy set is quite new that depends upon the number of negotiations/turnovers made by the decision makers (DMs) of any kind of industrial setup. Moreover, we have discussed the preliminary concept on intuitioni...

EOQ）模型。该问题在密集的模糊环境下处理。在模糊集理论中，密集模糊集的概念是相当 新的取决于工业开发商与原材料供应商和/或客户的谈判/营业额的数量。此外，我们讨论了密集模糊集的初步概念及其相应 的隶属函数和适当的解模糊方法。数值研究探讨的是，联合决策者下的解决方案给出了目标函数的更优化。为新方法的合理 性进行了敏感的分析，图解说明和结论。 缺货库存；密集模糊集；密集模糊锁集；去模糊化；优化 传统的延迟EOQ模型在现代研究人员的帮助下，在不 确定世界的不同近似和方法论的基础上得到了丰富。 在确定 性世界中它是相当古老的，但在模糊环境中，问题为最终决 策制定了一些新的途径。 Zadeh [34]首先发展了模糊集的概 念。 然后它被Bellman和Zadeh [4]应用于决策问题中。 在此之 后...

In this study we have analysed the data set over dengue disease having different symptoms for India and abroad. We have collected the data for the years 1988-2009 using World Health Organization (WHO) report 2011 and have determined correlations among different symptoms for dengue and chikungunya disease; and also between the affected rate and mort...

This paper deals with an adaptation of an application of nonlinear heptagonal dense fuzzy number. The concept of linear and as well as non-linear for both symmetric and asymmetric heptagonal dense fuzzy number is introduced here. We develop a new ranking method for non-linear heptagonal dense fuzzy number also. Considering a backorder inventory mod...

Fuzzy matrices play an important role to model several uncertain systems. In this paper, two types of norms, viz. max norm and square-max norm of fuzzy matrices are introduced. Also, several properties are investigated.

p>In this article we develop an economic order quantity (EOQ) model with backlogging where the decision is made jointly from two decision maker supposed to view one of them as the industrialist (developer) and the other one as the responsible manager. The problem is handled under dense fuzzy environment. In fuzzy set theory the concept of dense fuz...

In this article we develop an economic order quantity (EOQ) model with backlogging where the decision is made jointly from two decision maker supposed to view one of them as the industrialist (developer) and the other one as the responsible manager. The problem is handled under dense fuzzy environment. In fuzzy set theory the concept of dense fuzzy...

In the study of traditional economic order quantity (EOQ) inventory model we see , the decision makers or inventory practitioners are usually frame a model first then they apply it to the real situation without knowing its social acceptance. Social acceptance is recognized by means of people’s/ consumers’ choices. The demand quantity/gain of averag...

In this paper, we define two new type of operators of fuzzy matrices denoted by the symbol Å and Ä.Using these operators of fuzzy matrices we define row-maxaverage norm, column-max-average norm. Here instead of addition of fuzzy matrices we use the operator Å and instead of multiplication of fuzzy matrices we use the operatorÄ.We also define Pseudo...