Marija S. Najdanović

Dr. Marija S. Najdanović

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Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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29 January 2012 in Applied Mathematics and Computation
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Ljubica VelimirovicLjubica Velimirovic
Ljubica Velimirovic
MCMilica D. Cvetković
Milica D. Cvetković
Marija S. NajdanovićMarija S. Najdanović
Marija S. Najdanović
NVNikola Velimirović
Nikola Velimirović

1 January 2015 in Publications de l'Institut Mathematique
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Marija S. NajdanovićMarija S. Najdanović
Marija S. Najdanović
MZMilan Lj. Zlatanović
Milan Lj. Zlatanović
IHIrena Hinterleitner
Irena Hinterleitner
We consider conformal and geodesic mappings of generalized equidistant spaces. We prove the existence of mentioned nontrivial mappings and construct examples of conformal and geodesic mapping of a 3-dimensional generalized equidistant space. Also, we find some invariant objects (three tensors and four which are not tensors) of special geodesic mapping of generalized equidistant space.

1 January 2017 in Filomat
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Marija S. NajdanovićMarija S. Najdanović
Marija S. Najdanović
Ljubica VelimirovicLjubica Velimirovic
Ljubica Velimirovic
We investigate a second order infinitesimal bending of curves in a three-dimensional Euclidean space in this paper. We give the necessary and sufficient conditions for the vector fields to be infinitesimal bending fields of the corresponding order, as well as explicit formulas which determine these fields. We examine the first and the second variation of some geometric magnitudes which describe a curve, specially a change of the curvature. Two illustrative examples (a circle and a helix) are studied not only analytically but also by drawing curves using computer program Mathematica.

1 January 2015 in Filomat
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Marija S. NajdanovićMarija S. Najdanović
Marija S. Najdanović
In this paper we study the change of the Willmore energy of curves, as a special case of so-called Helfrich energy, under infinitesimal bending determined by the stationarity of arc length. We examine the variation of the unit tangent, principal normal and binormal vector fields, the curvature and the torsion of the curve. We obtain an explicit formula for calculating the variation of the Willmore energy, as well as the Euler-Lagrange equations describing equilibrium. We find an infinitesimal bending field for a helix and compute the variation of its Willmore energy under such infinitesimal bending.

1 October 2019 in Journal of Knot Theory and Its Ramifications
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LKLouis H. Kauffman
Louis H. Kauffman
Ljubica VelimirovicLjubica Velimirovic
Ljubica Velimirovic
Marija S. NajdanovićMarija S. Najdanović
Marija S. Najdanović
SRSvetozar R. Rančić
Svetozar R. Rančić

1 January 2017 in Miskolc Mathematical Notes
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Marija S. NajdanovićMarija S. Najdanović
Marija S. Najdanović
LVLjubica S. Velimirovic
Ljubica S. Velimirovic