Results 51 to 60 of about 1,034,900 (267)
Holographic interpretation of renormalization group approach to singular perturbations in nonlinear differential equations [PDF]
, 2013 We give a holographic explanation of how the renormalization group approach to singular perturbations in nonlinear differential equations proposed by Chen, Goldenfeld, and Oono is indeed equivalent to a renormalization group method in quantum field ...
Y. Nakayama
semanticscholar +1 more source
Smooth approximation of singular perturbations [PDF]
Journal of Mathematical Analysis and Applications, 2003 One of the main advantages gained by the modern use of point interactions in mathematical physics is the exact solvability of the Schrödinger equation and, simultaneously, the possibility of understanding the underlying formulae simply in the language of the essentially self-adjoint extensions.
Rhonda J. Hughes, Walter B. Huddell
openaire +2 more sources
Energy-Storage Balanced Reduction of Port-Hamiltonian Systems [PDF]
, 2003 Supported by the framework of dissipativity theory, a procedure based on physical energy to balance and reduce port-Hamiltonian systems with collocated inputs and outputs is presented.
Fujimoto, Kenji, +2 more
core +3 more sources
Big-Bounce with Finite-time Singularity: The $F(R)$ Gravity Description [PDF]
, 2017 An alternative to the Big Bang cosmologies is obtained by the Big Bounce cosmologies. In this paper, we study a bounce cosmology with a Type IV singularity occurring at the bouncing point, in the context of $F(R)$ modified gravity.
Odintsov, S. D., Oikonomou, V. K.
core +2 more sources
Cosmological Perturbations from the No Boundary Euclidean Path Integral [PDF]
, 1999 We compute, from first principles, the quantum fluctuations about instanton saddle points of the Euclidean path integral for Einstein gravity coupled to a scalar field.
A. Linde +25 more
core +2 more sources
Ultraviolet asymptotics and singular dynamics of AdS perturbations [PDF]
, 2015 A bstractImportant insights into the dynamics of spherically symmetric AdS-scalar field perturbations can be obtained by considering a simplified time-averaged theory accurately describing perturbations of amplitude ε on time-scales of order 1/ε2.
B. Craps, O. Evnin, J. Vanhoof
semanticscholar +1 more source
Sensors, 2017 Singular Perturbations represent an advantageous theory to deal with systems characterized by a two-time scale separation, such as the longitudinal dynamics of aircraft which are called phugoid and short period.
Paolo Castaldi +2 more
doaj +1 more source
Quasinormal forms for systems of two equations with large delay [PDF]
Известия высших учебных заведений: Прикладная нелинейная динамикаA system of two equations with delay is considered. The purpose of this work is to study the local dynamics of this system under the assumption that the delay parameter is sufficiently large.
Kashchenko, Sergej Aleksandrovich +1 more
doaj +1 more source
Axiomatic Approach in the Analytic Theory of Singular Perturbations
Axioms, 2020 Introduced by S.A. Lomov, the concept of a pseudoanalytic (pseudoholomorphic) solution laid the foundation for the development of the singular perturbation analytical theory.
Margarita Besova, Vasiliy Kachalov
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Singular Finsler Double Phase Problems with Nonlinear Boundary Condition
Advanced Nonlinear Studies, 2021 In this paper, we study a singular Finsler double phase problem with a nonlinear boundary condition and perturbations that have a type of critical growth, even on the boundary.
Farkas Csaba +2 more
doaj +1 more source