Results 51 to 60 of about 7,484 (167)

Role of ternary hybrid nanofluid in the thermal distribution of a dovetail fin with the internal generation of heat

Case Studies in Thermal Engineering, 2022
The primary goal of this research is to examine the thermal variance in a dovetail fin under fully wet conditions with ternary hybrid nanofluid ZnFe2O4 +MnZnFe2O4 +NiZnFe2O4- H2O taking temperature and humidity ratio differences into account as driving ...
J Suresh Goud, Pudhari Srilatha, R.S. Varun Kumar, K. Thanesh Kumar, Umair Khan, Zehba Raizah, Harjot Singh Gill, Ahmed M. Galal   +7 more
doaj   +1 more source

An Algebraic Study of Parametric Stokes Phenomena

Studies in Applied Mathematics, Volume 157, Issue 1, July 2026.
ABSTRACT We investigate geometric aspects of co‐equational parametric resurgence, by studying physical problems whose formal asymptotic solutions give rise to Borel transforms lying on an algebraic curve. This perspective allows us to elucidate concepts unique to parametric resurgence such as singularity structures, (virtual) turning points, and the ...
Inês Aniceto, Samuel Crew
wiley   +1 more source

A type of matrix Padé approximant inspired by scalar component models [PDF]

, 2012
In this paper we define a type of matrix Padé approximant inspired by the identification stage of multivariate time series models considering scalar component models.
Gil-Fariña, María Candelaria, Pestano-Gabino, Celina, González-Concepción, Concepción   +2 more
core   +1 more source

Modified differential transform method for solving linear and nonlinear pantograph type of differential and Volterra integro-differential equations with proportional delays

Advances in Difference Equations, 2020
In this study, a hybrid technique for improving the differential transform method (DTM), namely the modified differential transform method (MDTM) expressed as a combination of the differential transform method, Laplace transforms, and the Padé ...
Seyyedeh Roodabeh Moosavi Noori, Nasir Taghizadeh   +1 more
doaj   +1 more source

Quantum Dust Cores of Black Holes and Their Quasi‐Normal Modes

Fortschritte der Physik, Volume 74, Issue 4, April 2026.
We investigate the quasi‐normal mode spectrum of a gravitationally collapsed ball of dust, considering both a linear and a refined parabolic effective mass function for the quantum core. Furthermore, we account for the quantum leakage of dust particles outside the horizon.
T. Bambagiotti, L. Gallerani, A. Mentrelli, A. Giusti, R. Casadio   +4 more
wiley   +1 more source

Uncovering Hidden Patterns: Approximate Resurgent Resummation from Truncated Series

Mathematics
We analyze truncated series generated as divergent formal solutions of non-linear ordinary differential equations. Motivating the study is a specific non-linear, first-order differential equation, which is the basis of the resurgent formulation of ...
Alessio Maiezza, Juan Carlos Vasquez
doaj   +1 more source

A New Padé Approach to Modeling Wormholes in Dekel‐Zhao Dark Matter Halos

Annalen der Physik, Volume 538, Issue 3, March 2026.
A matter‐first Padé strategy is introduced to build traversable wormholes from prescribed dark‐matter halos. Rational Padé fits approximately the Dekel–Zhao density and are analytically integrated to obtain a shape function that exactly reproduces the intended matter content, avoiding spurious poles of geometry‐first schemes.
Jonathan Alves Rebouças, Francisco Tiago Barboza Sampaio, Francisco Bento Lustosa, Leonardo Tavares de Oliveira, C. R. Muniz   +4 more
wiley   +1 more source

p,q-Growth of Meromorphic Functions and the Newton-Padé Approximant

International Journal of Mathematics and Mathematical Sciences, 2019
In this paper, we have considered the generalized growth (p,q-order and p,q-type) in terms of coefficient of the development pnn given in the (n, n)-th Newton-Padé approximant of meromorphic function.
Mohammed Harfaoui, Loubna Lakhmaili, Abdellah Mourassil   +2 more
doaj   +1 more source

Quasinormal Modes for Coherent Quantum Black Holes

Fortschritte der Physik, Volume 74, Issue 3, March 2026.
ABSTRACT Coherent quantum black holes are quantum geometries obtained by means of a mean‐field‐like approach to the gravitational interaction. This procedure attenuates the classical spacetime singularities of general relativity by replacing them with integrable singularities in the quantum‐corrected geometry. After discussing some relevant observables
Tommaso Antonelli, Andrea Giusti, Roberto Casadio, Lavinia Heisenberg   +3 more
wiley   +1 more source

Source misalignment in multimode polymer tapered waveguides for optical backplanes [PDF]

, 2007
Polymer tapered multimode waveguides were modeled using the finite difference wide-angle beam propagation method to investigate whether tapered input waveguide couplers decreasing in width away from the waveguide entrance give improved tolerance to ...
Rashed, AM, Selviah, DR
core