A ring R is defined to be J-normal if for any a, r∈ R and idempotent e∈ R, ae= 0 implies Rera⊆ J(R) , where J(R) is the Jacobson radical of R. The class of J-normal rings lies between the classes of weakly normal rings and ...

Quite recently, Bor [Quaest. Math. (doi.org/10.2989/16073606.2019.1578836, in press)] has proved a new result on weighted arithmetic mean summability factors of non decreasing sequences and application on Fourier series. ...

We obtain a new matrix generalization result dealing with weighted mean summability of infinite series by using a new general class of power increasing sequences obtained by Sulaiman [9]. This theorem also includes some ...

We study the translation surfaces in the pseudo–Galilean space with the condition that one of generating curves is planar. We classify these surfaces whose mean and Gaussian curvatures are functions of one variable

The aim of this paper is to generalize a main theorem concerning absolute weighted arithmetic mean summability factors of infinite series and Fourier series to the vertical bar A, p(n); delta vertical bar(k) summability ...

We introduce bi-slant ξ ⊥-Riemannian submersions from Sasakian manifolds onto Riemannian manifolds as a generalization of slant and semi-slant ξ ⊥-Riemannian submersion and present some examples. We give the necessary ...

In this article, we investigate polynomial helices in the n-dimensional semi-Euclidean space with index two for n >= 4. We obtain some families of spacelike and timelike polynomial helices. These helices have spacelike or ...

We consider generalized Orlicz-Morrey spaces MF Phi,phi(R-n) including their weak versions. In these generalized spaces we prove the boundedness of the Hardy-Littlewood maximal operator and Calderon-Zygmund singular operators ...

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In this paper, we propose ANFIS based system modeling for classifying risks in life insurance. We differentiate policyholders on the basis of their cardiovascular risk characteristics and estimate risk loading ratio to ...