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Publications de l'Institut MathématiquePublisher: Matematički institut SANU, BeogradISSN: 0350-1302Issue: (N.S.) 103 (117)Date: 2018Journal Homepage Editorial BoardImpressum   Sectional Curvature in 4-Dimensional Manifolds 77 - 89 Graham Hall   AbstractKeywords: sectional curvature; 4-dimensions; neutral signatureMSC: 53A07 53A35DOI: https://doi.org/10.2298/PIM1817077H Magnetic Vector Fields: New Examples 91 - 102 Jun-ichi Inoguchi and Marian Ioan Munteanu   AbstractKeywords: magnetic curves; harmonic maps; magnetic mapsMSC: 53C43 53C07; 53C15; 58E20DOI: https://doi.org/10.2298/PIM1817091I A Note on Recurrent Bivectors in 4-Dimensional Lorentz Manifolds 103 - 112 Bahar Kırık   AbstractKeywords: bivector; recurrent tensor; Lorentz signature; holonomyMSC: 53C29; 53C50DOI: https://doi.org/10.2298/PIM1817103K A New Curvaturelike Tensor Field in an Almost Contact Riemannian Manifold II 113 - 128 Koji Matsumoto   AbstractKeywords: curvaturelike tensor field; almost contact Riemannian manifold; Sasakian manifold; $(CHR)_3$-curvature tensorMSC: 53C40DOI: https://doi.org/10.2298/PIM1817113M Top Dense Hyperbolic Ball Packings and Coverings for Complete Coxeter Orthoscheme Groups 129 - 146 Emil Molnár and Jenő Szirmai   AbstractKeywords: hyperbolic geometry; ball packings and coveringsMSC: 52C17DOI: https://doi.org/10.2298/PIM1817129M Properties of the Nearly Kähler $\mathbb{S}^3\times\mathbb{S}^3$ 147 - 158 Marilena Moruz and Luc Vrancken   AbstractKeywords: nearly Kähler manifolds; Riemannian submersionMSC: 53B35DOI: https://doi.org/10.2298/PIM1817147M Geometrical Coding of Color Images 159 - 173 Gleb V. Nosovskiy   AbstractKeywords: pattern recognition; geometrical coding; coding surface; contour analysis; edge detection; feature detection; motion detection; computer vision; image processing; multi-vision geometry; image stitchingMSC: 53-04; 68T45; 68T10DOI: https://doi.org/10.2298/PIM1817159N Isothermic Surfaces Obtained From Harmonic Maps in $S^6$ 175 - 180 Rui Pacheco   AbstractKeywords: Harmonic maps; isothermic surfaces; parallel mean curvature; pseudo-umbilical surfaces; seven dimensional cross productMSC: 53C43;53C42; 53A10;53A07DOI: https://doi.org/10.2298/PIM1817175P Pseudo-Symmetries of Generalized Wintgen Ideal Lagrangian Submanifolds 181 - 190 Miroslava Petrović-Torgašev and Anica Pantić   AbstractKeywords: generalized Wintgen ideal submanifold; pseudosymmetric space; Lagrangian submanifold; complex space formMSC: 53C40; 53C25DOI: https://doi.org/10.2298/PIM1817181P Relations Between Kernels and Images of Reduced Powers for Some Right $\mathcal{A}_p$-Modules 191 - 198 Theodore Popelensky   AbstractKeywords: Steenrod algebra; reduced powersMSC: 55S10; 55R40; 57T25DOI: https://doi.org/10.2298/PIM1817191P Article page: <<123>>

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