Browsing Department of Mathematics and Statistics by Title
Now showing items 11-30 of 208
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A case study of 2019-nCOV cases in Argentina with the real data based on daily cases from March 03, 2020 to March 29, 2021 using classical and fractional derivatives
(Springer Science and Business Media Deutschland GmbH, 2021-07-20)In this study, our aim is to explore the dynamics of COVID-19 or 2019-nCOV in Argentina considering the parameter values based on the real data of this virus from March�03, 2020 to March�29, 2021 which is a data range of ... -
A case study of Covid-19 epidemic in India via new generalised Caputo type fractional derivatives
(John Wiley and Sons Ltd, 2021-02-20)The first symptomatic infected individuals of coronavirus (Covid-19) was confirmed in December 2020 in the city of Wuhan, China. In India, the first reported case of Covid-19 was confirmed on 30 January 2020. Today, ... -
Characteristic Properties of the Indicatrix Under a Kropina Change of Finsler Metric
(Chinese Academy of Sciences: Beijing, China, 2018)The theory of β−change in Finsler geometry was first introduced by C. Shibata in [13]. In this paper, we study the behaviour of Indicatrices under a special β−change, known as Kropina change of Finsler metric. -
Comment on "On the conservation laws and invariant analysis for time-fractional coupled Fitzhugh-Nagumo equations using the Lie symmetry analysis" by S. Sahoo and S. S. Ray
(Springer, 2020)This comment deals with '' On the conservation laws and invariant analysis for time-fractional coupled Fitzhugh-Nagumo equations using Lie symmetry analysis'' by Sahoo and Ray (Eur Phys J Plus 134:83, 2019). The authors ... -
Comment on “Lie symmetries and group classification of a class of time fractional evolution systems” [J. Math. Phys. 56, 123504 (2015)]
(Springer, 2017)In this article, the prolongation formulae proposed in Huang and Shen [J. Math. Phys. 56, 123504 (2015)] for the analysis of time fractional systems of are proved incomplete and the required correct prolongation operators ... -
Comment on “Time fractional third-order variant Boussinesq system: Symmetry analysis, explicit solutions, conservation laws and numerical approximations” by Fairouz Tchier et al.
(Springer Verlag, 2019)[No abstract available] -
A complex fractional mathematical modeling for the love story of Layla and Majnun
(Elsevier Ltd, 2021-06-16)In this article, we provide numerical simulations to show the importance and the effects of fractional order derivatives in psychological studies. As it is well-known, complex variables are more realistic for defining ... -
COMPUTATIONAL STUDY OF FRACTIONAL-ORDER VECTOR BORNE DISEASES MODEL
(World Scientific, 2022-01-25)In this paper, we solve a nonlinear fractional-order model for analyzing the dynamical behavior of vector-borne diseases within the frame of Caputo-fractional derivative. The proposed mathematical model advances the existing ... -
Conformal Anti-Invariant Riemannian Maps from or To Sasakian Manifolds
(Pleiades Publishing, 2023-07-12)Abstract: In this article, we introduce conformal anti-invariant Riemannianmaps from or to Sasakian manifolds to or from Riemannianmanifolds. We construct examples of such maps for justification.We study the geometry of ... -
Conservation laws and series solutions of variable coefficient time fractional Kawahara equation
(Taylor and Francis Ltd., 2021-04-17)This paper investigates explicit power series solutions and conservation laws of variable coefficient time fractional Kawahara equation with Riemann�Liouville derivative which describs oscillatory solitary wave propagation ... -
Conservation laws for certain time fractional nonlinear systems of partial differential equations
(Elsevier B.V., 2017)In this study, an extension of the concept of nonlinear self-adjointness and Noether operators is proposed for calculating conserved vectors of the time fractional nonlinear systems of partial differential equations. In ... -
Conservation Laws of Einstein�s Field Equations for Pure Radiation Fields
(Springer Science and Business Media Deutschland GmbH, 2020-09-30)In the present paper, conservation laws of some of Einstein�s field equations are�obtained. Two methods are used to obtain conservation�laws. Firstly, direct method via multiplier approach is used and then, new conservation ... -
Constant curvature conditions for generalized kropina spaces
(RAMANUJAN SOCIETY OF MATHEMATICS AND MATHEMATICAL SCIENCES, 2021-03-01)The classification of Finsler spaces of constant curvature is an interesting and important topic of research in differential geometry. In this paper we obtain necessary and sucient conditions for generalized Kropina space ... -
Continuous distributions
(Apple Academic Press, 2023-09-08) -
Controllability of neutral impulsive fractional differential equations with Atangana-Baleanu-Caputo derivatives
(Elsevier Ltd, 2021-07-03)In this article, we aim to establish the controllability results for fractional differential equations of neutral type with Atangana-Baleanu-Caputo derivatives. We develop these results with the help of the theory of ... -
COVID-19 vaccine hesitancy and emerging variants: Evidence from six countries
(MDPI, 2021-10-29)As the world tries to cope with the devastating effects of the COVID-19 pandemic and emerging variants of the virus, COVID-19 vaccination has become an even more critical tool toward normalcy. The effectiveness of the ... -
A cross-sectional study on prevalence of menstrual problems, lifestyle, mental health, and PCOS awareness among rural and urban population of Punjab, India
(Taylor and Francis Ltd., 2021-08-27)Introduction: Menstrual cycle gets affected by various modifiable risk factors. To assess prevalence of various types of menstrual problems, lifestyle and mental health status, identification of variables as predictors for ... -
Cryptanalysis and Improved Image Encryption Scheme Using Elliptic Curve and Affine Hill Cipher
(MDPI, 2022-10-20)In the present era of digital communication, secure data transfer is a challenging task in the case of open networks. Low-key-strength encryption techniques incur enormous security threats. Therefore, efficient cryptosystems ... -
Cubic-Quartic Optical Solitons in Fiber Bragg Gratings with Dispersive Reflectivity Having Parabolic Law of Nonlinear Refractive Index by Lie Symmetry
(MDPI, 2022-11-11)This work recovers cubic-quartic optical solitons with dispersive reflectivity in fiber Bragg gratings and parabolic law of nonlinearity. The Lie symmetry analysis first reduces the governing partial differential equations ...