Teodor M. Atanackovic

Prof. Teodor M. Atanackovic

University of Novi Sad, Novi Sad, Serbia
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Research Focus & Metrics

Academic Career Length

21Years (2006-Present)

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

Representative Publications

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23 February 2018 in Fractional Calculus and Applied Analysis
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TATeodor M. Atanackovic
Teodor M. Atanackovic
SPStevan Pilipović
Stevan Pilipović
DZDušan Zorica
Dušan Zorica
The Caputo-Fabrizio fractional derivative is analyzed in classical and distributional settings. The integral inequalities needed for application in linear viscoelasticity are presented. They are obtained from the entropy inequality in a weak form. Moreover, integration by parts, an expansion formula, approximation formula and generalized variational principles of Hamilton’s type are given. Hamilton’s action integral in the first principle, do not coincide with the lower bound in the fractional integral, while in the second principle the minimization is performed with respect to a function from a specified space and the order of fractional derivative.

15 January 2011 in Fractional Calculus and Applied Analysis
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TATeodor M. Atanackovic
Teodor M. Atanackovic
SPStevan Pilipović
Stevan Pilipović
We propose a generalization of Hamilton’s principle in which the minimization is performed with respect to the admissible functions and the order of the derivation. The Euler-Lagrange equations for such minimization are derived. They generalize the classical Euler-Lagrange equation. Also, a new variational problem is formulated in the case when the order of the derivative is defined through a constitutive equation. Necessary conditions for the existence of the minimizer are obtained. They imply various known results in a special cases.

11 October 2011 in Continuum Mechanics and Thermodynamics
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TATeodor M. Atanackovic
Teodor M. Atanackovic
SKSanja Konjik
Sanja Konjik
LOLjubica Oparnica
Ljubica Oparnica
DZDušan Zorica
Dušan Zorica

15 January 2016 in Mechanics of Time-Dependent Materials
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TATeodor M. Atanackovic
Teodor M. Atanackovic
SKSanja Konjik
Sanja Konjik
SPStevan Pilipović
Stevan Pilipović
DZDušan Zorica
Dušan Zorica

5 December 2010 in Continuum Mechanics and Thermodynamics
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TATeodor M. Atanackovic
Teodor M. Atanackovic
SPStevan Pilipović
Stevan Pilipović
DZDusan Zorica
Dusan Zorica

21 October 2022 in Fractal and Fractional
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TATeodor M. Atanackovic
Teodor M. Atanackovic
SPStevan Pilipović
Stevan Pilipović
We studied a Zener-type model of a viscoelastic body within the context of general fractional calculus and derived restrictions on coefficients that follow from the dissipation inequality, which is the entropy inequality under isothermal conditions. We showed, for a stress relaxation and a wave propagation, that the restriction that follows from the entropy inequality is sufficient to guarantee the existence and uniqueness of the solution. We presented numerical data related to the solution of a wave equation for several values of parameters.