Retraction: Entropy generation analysis in MHD flow of viscous fluid by a curved stretching surface with cubic autocatalysis chemical reaction (The European Physical Journal Plus, (2020), 135, 2, (249), 10.1140/epjp/s13360-019-00030-1)

M. Ijaz Khan; Sohail A. Khan; T. Hayat; Sumaira Qayyum; A. Alsaedi

doi:10.1140/epjp/s13360-025-06991-w

Retraction: Entropy generation analysis in MHD flow of viscous fluid by a curved stretching surface with cubic autocatalysis chemical reaction (The European Physical Journal Plus, (2020), 135, 2, (249), 10.1140/epjp/s13360-019-00030-1)

M. Ijaz Khan
, Sohail A. Khan
, T. Hayat
, Sumaira Qayyum
, A. Alsaedi

Quaid-I-Azam University
Faculty of Sciences, King Abdulaziz University

Research output: Contribution to journal › Comment/debate

Abstract

The Editors-in-Chief have retracted this article. After publication, concerns were raised with respect to the use of Maxwell's equations in this study, namely that the equations are not fulfilled. Maxwell's equations for magnetism include two equations: one for the rotation of B and the other for the divergence. The magnetic field has no divergence; however, with the use of curvilinear coordinates in this article, the divergence of a vector of constant amplitude is not zero. The authors do not agree to this retraction.

Original language	English
Article number	1042
Journal	European Physical Journal Plus
Volume	140
Issue number	10
DOIs	https://doi.org/10.1140/epjp/s13360-025-06991-w
State	Published - Oct 2025
Externally published	Yes

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Khan, M. I., Khan, S. A., Hayat, T., Qayyum, S., & Alsaedi, A. (2025). Retraction: Entropy generation analysis in MHD flow of viscous fluid by a curved stretching surface with cubic autocatalysis chemical reaction (The European Physical Journal Plus, (2020), 135, 2, (249), 10.1140/epjp/s13360-019-00030-1). European Physical Journal Plus, 140(10), Article 1042. https://doi.org/10.1140/epjp/s13360-025-06991-w

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title = "Retraction: Entropy generation analysis in MHD flow of viscous fluid by a curved stretching surface with cubic autocatalysis chemical reaction (The European Physical Journal Plus, (2020), 135, 2, (249), 10.1140/epjp/s13360-019-00030-1)",

abstract = "The Editors-in-Chief have retracted this article. After publication, concerns were raised with respect to the use of Maxwell's equations in this study, namely that the equations are not fulfilled. Maxwell's equations for magnetism include two equations: one for the rotation of B and the other for the divergence. The magnetic field has no divergence; however, with the use of curvilinear coordinates in this article, the divergence of a vector of constant amplitude is not zero. The authors do not agree to this retraction.",

author = "Khan, \{M. Ijaz\} and Khan, \{Sohail A.\} and T. Hayat and Sumaira Qayyum and A. Alsaedi",

note = "Publisher Copyright: {\textcopyright} Societ{\`a} Italiana di Fisica (SIF) and Springer-Verlag GmbH Germany, part of Springer Nature 2025.",

year = "2025",

month = oct,

doi = "10.1140/epjp/s13360-025-06991-w",

language = "English",

volume = "140",

journal = "European Physical Journal Plus",

issn = "2190-5444",

publisher = "Springer Science and Business Media Deutschland GmbH",

number = "10",

}

Khan, MI, Khan, SA, Hayat, T, Qayyum, S & Alsaedi, A 2025, 'Retraction: Entropy generation analysis in MHD flow of viscous fluid by a curved stretching surface with cubic autocatalysis chemical reaction (The European Physical Journal Plus, (2020), 135, 2, (249), 10.1140/epjp/s13360-019-00030-1)', European Physical Journal Plus, vol. 140, no. 10, 1042. https://doi.org/10.1140/epjp/s13360-025-06991-w

Retraction: Entropy generation analysis in MHD flow of viscous fluid by a curved stretching surface with cubic autocatalysis chemical reaction (The European Physical Journal Plus, (2020), 135, 2, (249), 10.1140/epjp/s13360-019-00030-1). / Khan, M. Ijaz; Khan, Sohail A.; Hayat, T. et al.
In: European Physical Journal Plus, Vol. 140, No. 10, 1042, 10.2025.

Research output: Contribution to journal › Comment/debate

TY - JOUR

T1 - Retraction

T2 - Entropy generation analysis in MHD flow of viscous fluid by a curved stretching surface with cubic autocatalysis chemical reaction (The European Physical Journal Plus, (2020), 135, 2, (249), 10.1140/epjp/s13360-019-00030-1)

AU - Khan, M. Ijaz

AU - Khan, Sohail A.

AU - Hayat, T.

AU - Qayyum, Sumaira

AU - Alsaedi, A.

N1 - Publisher Copyright: © Società Italiana di Fisica (SIF) and Springer-Verlag GmbH Germany, part of Springer Nature 2025.

PY - 2025/10

Y1 - 2025/10

N2 - The Editors-in-Chief have retracted this article. After publication, concerns were raised with respect to the use of Maxwell's equations in this study, namely that the equations are not fulfilled. Maxwell's equations for magnetism include two equations: one for the rotation of B and the other for the divergence. The magnetic field has no divergence; however, with the use of curvilinear coordinates in this article, the divergence of a vector of constant amplitude is not zero. The authors do not agree to this retraction.

AB - The Editors-in-Chief have retracted this article. After publication, concerns were raised with respect to the use of Maxwell's equations in this study, namely that the equations are not fulfilled. Maxwell's equations for magnetism include two equations: one for the rotation of B and the other for the divergence. The magnetic field has no divergence; however, with the use of curvilinear coordinates in this article, the divergence of a vector of constant amplitude is not zero. The authors do not agree to this retraction.

UR - https://www.scopus.com/pages/publications/105021049702

U2 - 10.1140/epjp/s13360-025-06991-w

DO - 10.1140/epjp/s13360-025-06991-w

M3 - Comment/debate

AN - SCOPUS:105021049702

SN - 2190-5444

VL - 140

JO - European Physical Journal Plus

JF - European Physical Journal Plus

IS - 10

M1 - 1042

ER -

Khan MI, Khan SA, Hayat T, Qayyum S, Alsaedi A. Retraction: Entropy generation analysis in MHD flow of viscous fluid by a curved stretching surface with cubic autocatalysis chemical reaction (The European Physical Journal Plus, (2020), 135, 2, (249), 10.1140/epjp/s13360-019-00030-1). European Physical Journal Plus. 2025 Oct;140(10):1042. doi: 10.1140/epjp/s13360-025-06991-w

Retraction: Entropy generation analysis in MHD flow of viscous fluid by a curved stretching surface with cubic autocatalysis chemical reaction (The European Physical Journal Plus, (2020), 135, 2, (249), 10.1140/epjp/s13360-019-00030-1)

Abstract

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