Contents

Gravitation and Cosmology

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Vol. 32, No. 3, 2026

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Compact Hamiltonian Formulation of Metric Gravity: Properties and Applications

Alexei M. Frolov p. 333  abstract

Parameterized Absolute Parallelism: Stability, Singularity Avoidance, and Accelerated Expansion of the Universe

Tahia F. Dabash, A. Eid, and M. A. Bakry p. 344  abstract

Trajectories Deviation of Charged Spinning Test Particles

Mona M. Kamal p. 357  abstract

Low-frequency Gravitational Waves Coupled to Electromagnetic Waves in Material Media

A. N. Morozov and I. V. Fomin p. 366  abstract

On Gravitating Dyonic Configurations in Nonlinear Electrodynamics

K. A. Bronnikov, S. V. Bolokhov, G. S. Nurbakova, and B. Tynyshbay p. 376  abstract

Generalizing the Shell Theorem to Constant Curvature Spaces in All Dimensions and Topologies

Ava K. Tse, Olivia M. Markowich, and Trung V. Phan p. 383  abstract

On the Limitations of Karmarkar’s Condition in Static, Conformally Flat Space-Times

Samstuti Chanda, Ranjan Sharma, and Sunil Maharaj p. 390  abstract

A Note on Thermodynamic Fluid Space-Time

Sampa Pahan and Souvik Dutta p. 396  abstract

Impact of Gradient \(\boldsymbol{\eta}\)-Ricci–Yamabe Solitons on Warped Product Manifolds with Applications

Fatma Karaca and Ahmet Yildiz p. 410  abstract

Almost Riemann Solitons in \(\boldsymbol{f(r,T)}\)-Gravity: Extensions to Anisotropic Fluids and Field-Based Sources

Shouvik Datta Choudhury and Santu Dey p. 417  abstract

Growth Rate Analysis in \(\boldsymbol{f(R,L_{m})}\) Gravity: A Comparative Study with \(\boldsymbol{\Lambda}\)CDM Cosmology

G. K. Goswami and J. P. Saini p. 425  abstract

\(\boldsymbol{f(Q)}\) Gravity and Affine EoS: Compatibility and Observational Constraints

Romanshu Garg, G. P. Singh, and Ashutosh Singh p. 441  abstract

Higher-Dimensional Cosmology in the Framework of Generalized Chaplygin Gas: an Approximation Method

D. Panigrahi, S. Chatterjee, and B. C. Paul p. 454  abstract

Reconstructing Bouncing Cosmology in \(\boldsymbol{f(R)}\) Gravity

M. Ilyas, Fawad Khan, Mona Mohamoud, Kottakkaran Sooppy Nisar, Abdel-Haleem Abdel-Aty, Sabahat Mahnoor, Tooba Leghari, and M. Tauqeer p. 466  abstract

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