Results 81 to 90 of about 96,126 (203)
Klein–Gordon and Dirac Equations with Thermodynamic Quantities [PDF]
Few-Body Systems, 2015 15 pages, 8 ...
Arda, Altug +2 more
openaire +3 more sources
Fortschritte der Physik, Volume 74, Issue 4, April 2026.Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley +1 more source
AxiomsThis study explores the (1+1)-dimensional Klein–Fock–Gordon equation, a distinct third-order nonlinear differential equation of significant theoretical interest.
Muhammad Uzair +3 more
doaj +1 more source
The second‐order Klein‐Gordon field equation [PDF]
International Journal of Mathematics and Mathematical Sciences, 2004 We introduce and discuss the generalized Klein‐Gordon second‐order partial differential equation in the Robertson‐Walker space‐time, using the Casimir second‐order invariant operator written in hyperspherical coordinates. The de Sitter and anti‐de Sitter space‐times are recovered by means of a convenient choice of the parameter associated to the space ...
Diogo A. Gomes, E. Capelas de Oliveira
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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 +4 more
wiley +1 more source
Differential Quadrature Method for solving the linear and nonlinear Klein - Gordon Equation
مجلة علوم ذي قار, 2019 In this paper, numerical solution of Klein –Gordon equation is obtained by using differential quadrature method (DQM).This method is demonstrated by several examples.
Ahmed J. Hussein
doaj
Klein-Gordon-Wheeler-DeWitt-Schroedinger Equation
, 2011 We start from the Einstein-Hilbert action for the gravitational field in the presence of a "point particle" source, and cast the action into the corresponding phase space form.
Anderson +31 more
core +1 more source
Journal of Advances in Modeling Earth Systems, Volume 18, Issue 4, April 2026.Abstract Stable water isotopes serve as tracers of climate processes and are useful for identifying drivers of regional and global hydrological variability. To get a precise picture of spatiotemporal changes in the water cycle, it is necessary to describe the mechanisms in a coherent way among the involved climatic reservoirs (atmosphere, land, and ...
Yifan Li +3 more
wiley +1 more source
, 2009 We construct small amplitude breathers in 1D and 2D Klein--Gordon infinite lattices. We also show that the breathers are well approximated by the ground state of the nonlinear Schroedinger equation.
Bambusi, D., Paleari, S., Penati, T.
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KILLJOY POETICS IN ANTJE RÁVIK STRUBEL'S BLAUE FRAU (2021)
German Life and Letters, Volume 79, Issue 2, Page 217-242, April 2026.Abstract Drawing on Sara Ahmed's concept of killjoy activism, I explore how Antje Rávik Strubel's Blaue Frau employs a killjoy poetics that refuses to brush over violence, asymmetry, injury and force. Instead, the novel intervenes in affective textures of happiness and reconciliation, and forms activist and ecological networks of resistance. I build on
Alrik Daldrup
wiley +1 more source