in this paper,  we provide two different kinds of fixed pointtheorems in  fuzzy metric spaces. the first kind is for the fuzzy$varepsilon$-contractive type mappings and  the second kind is forthe fuzzy order $psi$-contractive type mappings. they improve thecorresponding  conclusions in the literature.

in this paper, we prove a fixed point theorem for a pair of generalized weakly contractive mappings in complete partial metric spaces. the theorems presented are generalizations of very recent fixed point theorems due to abdeljawad, karapinar and tas. to emphasize the very general nature of these results, we illustrate an example.

This study demonstrates an inventory system with items changing value over time under various realistic environments. It is assumed that the time-varying deterioration rate depending on maximum lifetime of and exceeding are regarded as scarp no longer serviceable. As a result, retailer will invest in preservation technology to reduce reckless deterioration. On other hand, receives upstream adva...

this article is devoted to two theorems on tangent circles, which were discovered by the iranian geometer abu sah?l kuhi (fourth century h.). the two theorems were inspired by the book of lemmas (makhudhat) attributed to archimedes. kuh?'s original treatise is lost, but the two theorems are found in nas??r al-d? ntu?s?'s edition of the lemmas of archimedes. they then appeared in latin...

College of Business Administration, University of Florida (e-mail: [email protected]). Joseph P. Simmons is Assistant Professor of Marketing, Yale School of Management, Yale University (e-mail: joseph.simmons@ yale.edu). The authors thank Melissa Minor for programming Experiment 4 and thank Richard Lutz and Rebecca Ratner for helpful comments on a previous draft. Ziv Carmon served as associate ed...

In this talk we discuss the possible closures of geodesic planes in a hyperbolic 3-manifold M. When M has finite volume Shah and Ratner (independently) showed that a very strong rigidity phenomenon holds, and in particular such closures are always properly immersed submanifolds of M with finite area. Manifolds with infinite volume, however, are far less understood and are the main subject of th...

levels of representational redescription (Karmiloff-Smith, 1992). But then what causal role is left for second-order intentional states? In our view, the highest level psychological descriptions of behaviors do not necessarily directly prompt the behavior they attend. To be sure, in some cases they may do so, but in many other cases they may serve to regulate behavior at a higher level of hiera...

For an inclusion F < G < L of connected real algebraic groups such that F is epimorphic in G, we show that any closed F -invariant subset of L/3 is G-invariant, where 3 is a lattice in L. This is a topological analogue of a result due to S. Mozes, that any finite F -invariant measure on L/3 is G-invariant. This result is established by proving the following result. If in addition G is generated...

in this paper, the rayleigh&apos;s quotient and the inverse vector iteration method are presented. the latter approach helps to obtain the natural frequencies and mode shapes of a structure. inverse vector iteration method with shifting enables to determine the higher modes. some basic theorems of linear algebra are presented and extended to study the free vibration of structures. the variation...

recently, cho et al. [y. j. cho, r. saadati, s. h. wang, common xed point theorems on generalized distance in ordered cone metric spaces, comput. math. appl. 61 (2011) 1254-1260] dened the concept of the c-distance in a cone metric space and proved some xed point theorems on c-distance. in this paper, we prove some new xed point and common xed point theorems by using the distance in ordere...