Results 21 to 30 of about 1,751,206 (262)

Excluding static and spherically symmetric black holes in Einsteinian cubic gravity with unsuppressed higher-order curvature terms

open access: yesPhysics Letters B, 2023
Einsteinian cubic gravity is a higher-order gravitational theory in which the linearized field equations of motion match Einstein's equations on a maximally symmetric background.
Antonio De Felice, Shinji Tsujikawa
doaj   +1 more source

MATRIX MODEL PERTURBED BY HIGHER ORDER CURVATURE TERMS [PDF]

open access: yesModern Physics Letters A, 1992
The critical behavior of the D=0 matrix model with the potential perturbed by a nonlocal term generating touchings between random surfaces is studied. It is found that the phase diagram of the model has many features of the phase diagram of discretized Polyakov’s bosonic string with higher order curvature terms included.
openaire   +2 more sources

Williams expansion-based approximation of the stress field in an Al 2024 body with a crack from optical measurements [PDF]

open access: yesFracture and Structural Integrity, 2017
A study on the approximation of the stress field in the vicinity of crack tip in a compact tension specimen made from Al 2024-T351 is presented. Crack tip stress tensor components are expressed using the linear elastic fracture mechanics (LEFM) theory in
S. Seitl   +4 more
doaj   +4 more sources

Electrostatic forces and higher order curvature terms of Young–Laplace equation on nanobubble stability in water

open access: yesnpj Clean Water, 2022
Deductive arguments regarding the unexpected stability of nanobubbles in water include the excessive internal pressure of minuscule gas pockets. In this study, the derivation assumptions of the Young–Laplace equation are evaluated closely to discuss the ...
Tuna Yildirim   +4 more
doaj   +1 more source

Thermodynamic analysis of modified teleparallel gravity involving higher-order torsion derivative terms

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
The present study is elaborated to investigate the validity of thermodynamical laws in a modified teleparallel gravity based on higher-order derivative terms of torsion scalar.
Saira Waheed, M. Zubair
doaj   +1 more source

A radiative seesaw model with higher order terms under an alternative U(1)B−L

open access: yesPhysics Letters B, 2018
We propose a model based on an alternative U(1)B−L gauge symmetry with 5 dimensional operators in the Lagrangian, and we construct the neutrino masses at one-loop level, and discuss lepton flavor violations, dark matter, and the effective number of ...
Takaaki Nomura, Hiroshi Okada
doaj   +1 more source

Oscillation and nonoscillation of two terms linear and half-linear equations of higher order

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2010
In this paper we investigate the properties of nonoscillation for the equation $$(-1)^{n}(\rho(t)|y^{(n)}|^{p-2}y^{(n)})^{(n)}-v(t)|y|^{p-2}y=0,$$ where ...
Ryskul. Oinarov, S. Y. Rakhimova
doaj   +1 more source

Complexity Hierarchies and Higher-order Cons-free Term Rewriting [PDF]

open access: yesLogical Methods in Computer Science, 2017
Constructor rewriting systems are said to be cons-free if, roughly, constructor terms in the right-hand sides of rules are subterms of the left-hand sides; the computational intuition is that rules cannot build new data structures. In programming language research, cons-free languages have been used to characterize hierarchies of computational ...
Kop, Cynthia Louisa Martina   +1 more
openaire   +5 more sources

Critical Combinations of Higher-Order Terms in Einstein-Maxwell Theory and Compactification

open access: yesAdvances in High Energy Physics, 2015
We discuss the role of a particular combination of higher derivative terms in higher dimensional theories, particularly in the background of spontaneous compactification. Two classes of theories are proposed in this paper.
Nahomi Kan, Kiyoshi Shiraishi
doaj   +1 more source

Williams Expansion Terms and their Importance for Accurate Stress Field Description in Specimens with a Crack [PDF]

open access: yesTransactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2013
The paper deals with an analysis of the stress and displacement fields in various cracked specimens (loaded in mode I as well as in mode II). The main goal is to determine an accurate approximation of the near-crack-tip fields which can be subsequently
Lucie MALÍKOVÁ, Václav VESELÝ
doaj   +1 more source

Home - About - Disclaimer - Privacy