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 Publications de l'Institut MathématiquePublisher: Matematički institut SANU, BeogradISSN: 0350-1302Issue: (N.S.) 89 (103)Date: 2011Journal Homepage

 On the Radius and the Relation Between the Total Graph of a Commutative Ring and Its Extensions 1 - 9 Zoran Pucanović and Zoran Petrović
AbstractKeywords: commutative ring, zero-divisor, total graphMSC: 13A99 05C25
 The Erdhős-Kac Theorem for Curvatures in Integral Apollonian Circle Packings 11 - 17 Goran Djanković
AbstractMSC: 11N60 11N36
 The Difference Between the Product and the Convolution Product of Distribution Functions in $\mathbb{R}^n$ 19 - 36 E. Omey and R. Vesilo
AbstractKeywords: subexponential distribution, regular variation, $O$-regularly varying functions, sums of random vectorsMSC: 26A12 26B99 60E99 60K99
 A Loopless Implementation of a Gray Code for Signed Permutations 37 - 47 James Korsh, Paul LaFollette and Seymour Lipschutz
AbstractKeywords: algorithms, combinatorial, loopless, gray code, reflection groups, signed permutationsMSC: 68R05 05A05
 Hereditarily Indecomposable Hausdorff Continua Have Unique Hyperspaces $2^X$ and $C_n(X)$ 49 - 56 Alejandro Illanes
AbstractKeywords: generalized arc, Hausdorff continuum, hereditarily indecomposable, hyperspace, unique hyperspace, Vietoris topologyMSC: 54B20
 The Scalar Curvature of the Tangent Bundle of a Finsler Manifold 57 - 68 Aurel Bejancu and Hani Reda Farran
AbstractKeywords: Berwald manifold, Finsler manifold, Landsberg manifold, Riemannian manifold, scalar curvature, tangent bundleMSC: 53C60 53C15
 Semi-parallel Lightlike Hypersurfaces of Indefinite Cosymplectic Space Forms 69 - 75 Abhitosh Upadhyay and Ram Shankar Gupta
AbstractKeywords: degenerate metric, cosymplectic manifoldMSC: 53C15 53C40 53C50 53D15
 On Extended Generalized $\phi$-recurrent $\beta$-Kenmotsu Manifolds 77 - 88 Absos Ali Shaikh and Shyamal Kumar Hui
AbstractKeywords: generalized recurrent Kenmotsu manifold, generalized $\phi$-recurrent Kenmotsu manifold, extended generalized $\phi$-recurrent $\beta$-Kenmotsu manifold, Einstein manifold, scalar curvatureMSC: 53C15 53C25
 On Roots of Polynomials with Positive Coefficients 89 - 93 Toufik Zaïmi
AbstractMSC: 11R04 12D10 11R06
 On Super Quasi Einstein Manifold 95 - 104 Pratyay Debnath and Arabinda Konar
AbstractKeywords: quasi Einstein manifold, parallel vector field, pseudo quasi Einstein manifold, viscous fluid spacetimeMSC: 53C50 53C25 53B30 53C80 53B50

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