‎Let $G$ be a finite group‎. ‎By $MT(G)=(m_1,cdots,m_k)$ we denote the type of‎ ‎conjugacy classes of maximal subgroups of $G$‎, ‎which implies that $G$ has exactly $k$ conjugacy classes of‎ ‎maximal subgroups and $m_1,ldots,m_k$ are the numbers of conjugates‎ ‎of maximal subgroups of $G$‎, ‎where $m_1leqcdotsleq m_k$‎. ‎In this paper‎, ‎we‎ ‎give some new characterizations of finite groups by ...

This paper presents a systematic approach to design a Lyapunov based super twisting differentiator. The differentiator will be shown convergent in a finite time whilst the relevant time is accurately estimated.  This differentiator is the main part to establish the sliding surface in higher order sliding mode. The differentiator  is used in the prescribed control structure  to regulate pressure...

Abstract Gibbs ringing is a feature of MR images caused by the finite sampling acquisition space ( k -space). It manifests itself with patterns around sharp edges which become increasingly significant for low-resolution acquisitions. In this paper, we model artefact removal as constrained variational problem where data discrepancy, represented in denoising and convolutive form, balanced to spar...

A partial linear space is a pair $(\mathcal{P},\mathcal{L})$ where $\mathcal{P}$ non-empty set of points and $\mathcal{L}$ collection subsets called lines such that any two distinct are contained in at most one line, every line contains least points. proper when it not or graph. group automorphisms $G$ acts transitively on ordered pairs collinear non-collinear precisely transitive rank 3 In thi...