12 articles in this issue
Catarina Pina Avelino,Altino Manuel Folgado dos Santos
The classification of dihedral folding tessellations of the sphere and the plane whose prototiles are a kite and an equilateral triangle are obtained in a recent paper, [1]. In this paper, we extend this classification presenting all the dihedral folding ... see more
Hui Hu,Xiu-Min Zheng
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Željka Milin Šipuš,Vladimir Volenec
In this paper we describe harmonic evolutes of surfaces in Minkowski 3-space. In particular, we study properties of harmonic evolutes of constant mean curvature surfaces and their relation to parallel surfaces. Furthermore, we study harmonic evolutes of s... see more
Sanjo Zlobec
We show that every continuously differentiable function in several variables with a global Lipschitz derivative on a compact convex set has a separation property. It separates two classes of quadratic functions given in terms of either the function’s c... see more
Shiv Kumar Kaushik,Suman Panwar
Xiaofeng Wang,Tie Zhang
In this paper, we present a new family of two-step Newton-type iterative methods with memory for solving nonlinear equations. In order to obtain a Newton-type method with memory, we first present an optimal two-parameter fourth-order Newton-type method wi... see more
Yong Sup Kim,Arjun Rathie,Richard Bruce Paris
Ismail Gök,Semra Kaya Nurkan,Kazim Ilarslan,Levent Kula,Mesut Altinok
Mirko Radic
The article deals with some functions which play a key role in the study of bicentric polygons where conics are circles. This article can be considered as a companion article to [8]. We report on new functions and new results concerning these functions of... see more
Nguyen Tien Quang
A braided E-system is a version of braided crossed module for rings. In this paper we present applications of the braided Ann-category theory to the problem of classifications of braided E-systems, of ring extensions of the type of a str... see more
Gaofeng Sun,Kaimin Teng
Dorota Kuziak,Iztok Peterin,Ismael Gonzalez Yero