Radar Target Detection with K-Nearest Neighbor Manifold Filter on Riemannian Manifold by Dongao Zhou, Weilong Yang, Zhaopeng Liu, Manhui Sun

“…In this paper, we propose a K-nearest neighbor manifold filter on the Riemannian manifold and apply it to signal detection within clutter. …”
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Density of systoles of hyperbolic manifolds by Douba, Sami, Huang, Junzhi

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Some Curvature Properties of -Manifolds by Mehmet Atçeken

“…The object of the present paper is to study -manifolds with vanishing quasi-conformal curvature tensor. …”
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Lagrange geometry on tangent manifolds by Izu Vaisman

“…In this paper, we study a generalization which consists of replacing the tangent bundle by a general tangent manifold, and the Lagrangian by a family of compatible, local, Lagrangian functions. …”
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Locally conformal symplectic manifolds by Izu Vaisman

Subjects: “…locally conformal symplectic manifold…”
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On Compact Trans-Sasakian Manifolds by Ibrahim Al-Dayel, Sharief Deshmukh

“…We study 3-dimensional compact and simply connected trans-Sasakian manifolds and find necessary and sufficient conditions under which these manifolds are homothetic to Sasakian manifolds. …”
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K-cowaist of manifolds with boundary by Bär, Christian, Hanke, Bernhard

Subjects: “…Manifolds with boundary…”
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Characteristic Lightlike Submanifolds of an Indefinite S-Manifold by Jae Won Lee

“…We study characteristic r-lightlike submanifolds M tangent to the characteristic vector fields in an indefinite metric S-manifold, and we also discuss the existence of characteristic lightlike submanifolds of an indefinite S-space form under suitable hypotheses: (1) M is totally umbilical or (2) its screen distribution S(TM) is totally umbilical in M.…”
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Space time manifolds and contact structures by K. L. Duggal

Subjects: “…contact manifold…”
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Mesh-based interpolation on 2-manifolds by Kevin Scully

“…This paper presents a global L1-estimate for the convergence of mesh-based interpolants on 2-manifolds defined over multiple coordinate systems and analyzes the convergence of an integral on a triangulated approximate manifold to the desired integral on the manifold being approximated. …”
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Two theorems on (ϵ)-Sasakian manifolds by Xu Xufeng, Chao Xiaoli

Subjects: “…(ϵ)-sasakian manifolds; real hypersurface; indefinite kaehlerian manifolds; (ϵ)-almost contact structure.…”
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∗-Ricci Tensor on α-Cosymplectic Manifolds by M. R. Amruthalakshmi, D. G. Prakasha, Nasser Bin Turki, Inan Unal

“…In this paper, we study α-cosymplectic manifold M admitting ∗-Ricci tensor. First, it is shown that a ∗-Ricci semisymmetric manifold M is ∗-Ricci flat and a ϕ-conformally flat manifold M is an η-Einstein manifold. …”
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Nonseparated manifolds and completely unstable flows by Sudhir K. Goel

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On contact CR-submanifolds of sasakian manifolds by Koji Matsumoto

Subjects: “…Kaehlerian manifold…”
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Almost Bronze Structures on Differentiable Manifolds by Mustafa Özkan, Seher Doğan

“…Also, we have defined an almost bronze Riemannian manifold.…”
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Introduction to Grassmann manifolds and quantum computation by Kazuyuki Fujii

“…We show how to treat Grassmann manifolds which are very important examples of manifolds in mathematics and physics. …”
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On Sectional Curvatures of (ε)-Sasakian Manifolds by Rakesh Kumar, Rachna Rani, R. K. Nagaich

“…We obtain some basic results for Riemannian curvature tensor of (ε)-Sasakian manifolds and then establish equivalent relations among φ-sectional curvature, totally real sectional curvature, and totally real bisectional curvature for (ε)-Sasakian manifolds.…”
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Lie Groupoids and Generalized Contact Manifolds by Fulya Şahin

“…We investigate relationships between Lie groupoids and generalized almost contact manifolds. We first relate the notions of integrable Jacobi pairs and contact groupoids on generalized contact manifolds, and then we show that there is a one to one correspondence between linear operators and multiplicative forms satisfying Hitchin pair. …”
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An example of an almost hyperbolic Hermitian manifold by Cornelia-Livia Bejan, Liviu Ornea

Subjects: “…Hyperbolic Hermitian manifolds…”
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Differential Calculus on N-Graded Manifolds by G. Sardanashvily, W. Wachowski

“…We follow the notion of an N-graded manifold as a local-ringed space whose body is a smooth manifold Z. …”
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