Results 181 to 190 of about 859,817 (314)

C∞$$ {C}^{\infty } $$‐Structures for Liénard Equations and New Exact Solutions to a Class of Klein–Gordon Equations

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT Liénard equations are analyzed using the recent theory of 𝒞∞‐structures. For each Liénard equation, a 𝒞∞‐structure is determined by using a Lie point symmetry and a 𝒞∞‐symmetry. Based on this approach, a novel method for integrating these equations is proposed, which consists in solving sequentially two completely integrable Pfaffian equations.
Beltrán de la Flor, Adrián Ruiz, Concepción Muriel   +2 more
wiley   +1 more source

Planar Algebra of the Subgroup-Subfactor [PDF]

, 2008
Ved Prakash Gupta
openalex   +1 more source

Hybrid Reaction–Diffusion Epidemic Models: Dynamics and Emergence of Oscillations

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this paper, we construct a hybrid epidemic mathematical model based on a reaction–diffusion system of the SIR (susceptible‐infected‐recovered) type. This model integrates the impact of random factors on the transmission rate of infectious diseases, represented by a probabilistic process acting at discrete time steps.
Asmae Tajani, Cristiana J. Silva, Guillaume Cantin   +2 more
wiley   +1 more source

BRST operator for quantum Lie algebras and differential calculus on quantum groups [PDF]

, 2001
A. P. Isaev, O. Ogievetsky
openalex   +1 more source

Basic Linear Algebra Subprograms for Fortran Usage

ACM Transactions on Mathematical Software, 1979
C. Lawson, R. Hanson, D. Kincaid, F. Krogh   +3 more
semanticscholar   +1 more source

Linear convergence of the NQZ algorithm for finding the H-spectral radius of nonnegative tensors. [PDF]

PLoS One
Lv H, Chen M.
europepmc   +1 more source

Duality for Evolutionary Equations With Applications to Null Controllability

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We study evolutionary equations in exponentially weighted L2$$ {\mathrm{L}}^2 $$‐spaces as introduced by Picard in 2009. First, for a given evolutionary equation, we explicitly describe the ν$$ \nu $$‐adjoint system, which turns out to describe a system backwards in time. We prove well‐posedness for the ν$$ \nu $$‐adjoint system. We then apply
Andreas Buchinger, Christian Seifert
wiley   +1 more source

Permanence properties for crossed products and fixed point algebras of finite groups [PDF]

, 2012
Cornel Pasnicu, N. Christopher Phillips
openalex   +1 more source

Learning behavior aware features across spaces for improved 3D human motion prediction. [PDF]

Sci Rep
Ji R, Lu C, Huang Z, Zhong J.
europepmc   +1 more source

A Biophysical Approach to the Design of Networks of Communication Systems

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT Inspired by the growth dynamics of the protist Physarum polycephalum, we employ a formalism that describes adaptive, incompressible Hagen‐Poiseuille flows on channel networks to identify graphs connecting different nodes within Euclidean space. These graphs are either suboptimal or optimal relative to their length.
Rodrigo Almeida, Ana Filipa Valente, Rui Dilão   +2 more
wiley   +1 more source