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The notion of a coherent space is a nonlinear version of the notion of a complex Euclidean space: The vector space axioms are dropped while the notion of inner product is kept. Coherent spaces provide a setting for the study of geometry in…

数学物理 · 物理学 2018-10-01 Arnold Neumaier

The paper is devoted to a description of all strongly facially symmetric spaces which are isometrically isomorphic to $L_1$-spaces. We prove that if $Z$ is a real neutral strongly facially symmetric space such that every maximal geometric…

泛函分析 · 数学 2014-03-05 Normuxammad Yadgorov , Mukhtar Ibragimov , Karimbergen Kudaybergenov

This paper deals with new sequence spaces $X(r, s, t ;\Delta) $ for $X\in \{l_\infty, c, c_0\}$ defined by using generalized means and difference operator. It is shown that these spaces are complete normed linear spaces and the spaces $X(r,…

泛函分析 · 数学 2016-08-25 Atanu Manna , Amit Maji , P. D. Srivastava

The aim of the present paper is to provide an intrinsic investigation of two special Finsler spaces whose defining properties are related to Berwald connection, namely, Finsler space of scalar curvature and of constant curvature. Some…

微分几何 · 数学 2014-05-08 Nabil L. Youssef , A. Soleiman

This paper gives some relating results for various concepts of convexity in metric spaces such as midpoint convexity, convex structure, uniform convexity and near-uniform convexity, Busemann curvature and its relation to convexity. Some…

泛函分析 · 数学 2016-09-08 M De la Sen

In this paper, we study some topological characteristics of the n-normed spaces. We observe convergence sequences, closed sets, and bounded sets in the n-normed spaces using norms of quotient spaces that will be constructed. These norms…

泛函分析 · 数学 2018-10-19 Harmanus Batkunde , Hendra Gunawan

We study the geometry of stable maximal hypersurfaces in a variety of spacetimes satisfying various physically relevant curvature assumptions, for instance the Timelike Convergence Condition (TCC). We characterize stability when the target…

微分几何 · 数学 2019-03-05 Giulio Colombo , José A. S. Pelegrín , Marco Rigoli

The main aim of the paper is to give a full classification (up to isometry) of all metric spaces X with the following two properties: X contains a compact set with non-empty interior; and for any three distinct points a, b and c of X there…

度量几何 · 数学 2025-01-08 Piotr Niemiec

In this paper we present a rigidity theorem for locally isometric hypersurfaces with a curvature restriction in de Sitter space. This is an analogue to the case for Riemannian space forms given by Guan and Shen in [5].

微分几何 · 数学 2020-06-09 Tristan Hasson

In this paper, we introduce some new $I_\lambda$-lacunary statistically convergent sequence spaces of order $\alpha$ defined by a Musielak-Orlicz function. We study some relations between $I_\lambda$-lacunary statistically convergence with…

泛函分析 · 数学 2016-03-23 Adem Kılıçman , Stuti Borgohain

The main objective of this article is to introduce Euler-Riesz difference sequence spaces of fractional order ${\tau} $ along with infinite matrices. Some topological properties of these spaces are considered here along with the Schauder…

泛函分析 · 数学 2023-01-18 D. Jena , S. Dutta

$\gamma$-Liouville quantum gravity ($\gamma$-LQG) constitutes a family of planar random geometries whose geodesics exhibit intricate fractal behaviour. As is observed in various planar models of random geometry as part of the phenomenon of…

概率论 · 数学 2025-12-11 Manan Bhatia , Konstantinos Kavvadias

Strong K\"ahler with Torsion is the target space geometry of $(2,1)$ and $(2,0)$ supersymmetric nonlinear sigma models. We discuss how it can be represented in terms of Generalised Complex Geometry in analogy to the Gualtieri map from the…

高能物理 - 理论 · 物理学 2019-04-09 Chris Hull , Ulf Lindström

The present paper concerns a space-time homogenization problem for nonlinear diffusion equations with periodically oscillating (in space and time) coefficients. Main results consist of corrector results (i.e., strong convergences of…

偏微分方程分析 · 数学 2022-10-26 Tomoyuki Oka

For spacelike stationary (i.e. zero mean curvature) surfaces in 4-dimensional Lorentz space one can naturally introduce two Gauss maps and Weierstrass representation. In this paper we investigate their global geometry systematically. The…

微分几何 · 数学 2014-02-17 Zhiyu Liu , Xiang Ma , Changping Wang , Peng Wang

In this paper a systematic study of the category GTS of generalized topological spaces (in the sense of H. Delfs and M. Knebusch) and their strictly continuous mappings begins. Some completeness and cocompleteness results are achieved.…

逻辑 · 数学 2020-09-09 Artur Piȩkosz

In 2014, Gromov conjectured that sequences of manifolds with nonnegative scalar curvature should have subsequences which converge in some geometric sense to limit spaces with some notion of generalized nonnegative scalar curvature. In…

度量几何 · 数学 2025-10-28 Christina Sormani , Wenchuan Tian , Wai-Ho Yeung

In this paper, we introduce cone normed linear space, study the cone convergence with respect to cone norm. Finally, we prove the completeness of a finite dimensional cone normed linear space.

综合数学 · 数学 2010-09-14 T. K. Samanta , Sanjay Roy , Bivas Dinda

We study sequences of oriented Riemannian manifolds with boundary and, more generally, integral current spaces and metric spaces with boundary. {\color{blue}For a metric space, we define its boundary to be the completion of the space minus…

度量几何 · 数学 2021-08-18 Raquel Perales

Aim. This paper (Paper D) unifies the ideal-theoretic, computational, and homological layers developed in Papers A (Rao 2025), B (Rao 2025), and C (Rao 2025) into a geometric framework that includes fuzzy and computational geometries on the…

综合数学 · 数学 2026-02-06 Chandrasekhar Gokavarapu , D Madhusudhana Rao