Search Results - "Mishra, Ambuj Kumar"

Yukawa–Casimir Wormholes in f(Q) Gravity by Mishra, Ambuj Kumar, Shweta, Sharma, Umesh Kumar

“…Casimir energy is always suggested as a possible source to create a traversable wormhole. It is also used to demonstrate the existence of negative energy,…”
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The Fekete-Szegö estimates for a new class of analytic functions associated with the convolution by Soni, Amit, Mishra, Ambuj Kumar

“…In the present investigation, we discuss the sharpness of the bound of the Fekete-Szego functional |a3 − µa2 2 | for the functions belonging to certain…”
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A new shape function for wormholes in f(R) gravity and general relativity by Mishra, Ambuj Kumar, Sharma, Umesh Kumar

“…•A new wormhole (WH) shape function is proposed.•The shape function obeyed all the desired conditions of WH geometry.•The tangential null energy conditions and…”
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Non-exotic wormholes in 4D Einstein–Gauss–Bonnet gravity by Mishra, Ambuj Kumar, Shweta, Sharma, Umesh Kumar

“…In the present paper, we investigate wormholes in 4D Einstein–Gauss–Bonnet (EGB) gravity without the requirement of exotic matters. We have taken the…”
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Traversable wormholes in f(R,T) gravity by Mishra, Ambuj Kumar, Sharma, Umesh Kumar, Dubey, Vipin Chandra, Pradhan, Anirudh

“…In the present article, models of traversable wormholes within the f ( R , T ) modified gravity theory, where R is the Ricci scalar and T is the trace of the…”
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Diagnosing the Rényi holographic dark energy model in a flat Universe by Dubey, Vipin Chandra, Mishra, Ambuj Kumar, Sharma, Umesh Kumar

“…In this paper, we have examined the Rényi holographic dark energy (RHDE) model in the framework of an isotropic and spatially homogeneous flat FLRW…”
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Wormholes Within the Framework of $$f(R, T)=R+\alpha R^2+\lambda T$$ Gravity by Sharma, Umesh Kumar, Mishra, Ambuj Kumar

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Wormholes Within the Framework of f(R,T)=R+αR2+λT Gravity by Sharma, Umesh Kumar, Mishra, Ambuj Kumar

“…In this work, we explore modeling of wormholes in framework of f ( R ,  T ) gravity with the functional form f ( R , T ) = R + α R 2 + λ T , where R and T are…”
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Yukawa–Casimir Wormholes in If/I Gravity by Mishra, Ambuj Kumar, Shweta, Sharma, Umesh Kumar

“…Casimir energy is always suggested as a possible source to create a traversable wormhole. It is also used to demonstrate the existence of negative energy,…”
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Cosmic consequences of Barrow holographic dark energy with Granda–Oliveros cut-off in fractal cosmology by Al Mamon, Abdulla, Sharma, Umesh Kumar, Kumar, Mukesh, Mishra, Ambuj Kumar

“…In a fractal world with matter (pressureless) and dark energy, we examine the recently proposed Barrow holographic dark energy model with the Granda–Oliveros…”
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A comparative study of Kaluza–Klein model with magnetic field in Lyra manifold and general relativity by Mishra, Ambuj Kumar, Sharma, Umesh Kumar, Pradhan, Anirudh

“…•The model is compared in Lyra's manifold and General Relativity with Hybrid Expansion Law.•The derived model is describing that the universe is in accelerated…”
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Adaptive Sparse Channel Estimator for IRS-Assisted mmWave Hybrid MIMO System by Shukla, Vidya Bhasker, Krejcar, Ondrej, Choi, Kwonhue, Bhatia, Vimal, Mishra, Ambuj Kumar

“…A viable technology for the future wireless communication system to obtain extremely high information rates with improved coverage is the collaborative…”
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Yukawa-Casimir wormholes in f(Q) gravity by Mishra, Ambuj Kumar, Shweta, Sharma, Umesh Kumar

“…Casimir energy is always suggested as a possible source to create a traversable wormhole. It is also used to demonstrate the existence of negative energy,…”
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Traversable wormhole solutions with non-exotic fluid in framework of $f(Q)$ gravity by Sharma, Umesh Kumar, Shweta, Mishra, Ambuj Kumar

“…IJGMMP 19, 02, 2250019 (2022) The presence of exotic matter for the existence of the wormhole geometry has been an unavoidable problem in GR. In recent studies…”
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Non-exotic wormholes in 4-D Einstein-Gauss-Bonnet gravity by Mishra, Ambuj Kumar, Shweta, Sharma, Umesh Kumar

“…In the present paper, we investigate wormholes in 4D-Einstein-Gauss-Bonnet gravity without the requirement of exotic matters. We have taken the radial…”
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A new shape function for wormholes in $f(R)$ gravity and General Relativity by Mishra, Ambuj Kumar, Sharma, Umesh Kumar

“…In the present work, a new shape function is proposed inside a modified $f(R)$ gravity and General Relativity in wormhole (WH) geometry. The shape function…”
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Diagnosing the R$\acute{e}$nyi Holographic Dark Energy model in a flat Universe by Dubey, Vipin Chandra, Mishra, Ambuj Kumar, Sharma, Umesh Kumar

“…In this paper, we have examined the R$\acute{e}$nyi holographic dark energy (RHDE) model in the framework of an isotropic and spatially homogeneous flat FLRW…”
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Traversable Wormholes in $f(R,T)$ Gravity by Mishra, Ambuj Kumar, Sharma, Umesh Kumar, Dubey, Vipin Chandra, Pradhan, Anirudh

“…Astrophys Space Sci 365, 34 (2020) In the present article, models of traversable wormholes within the $f(R, T)$ modified gravity theory are investigated. We…”
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