Results 61 to 70 of about 2,576 (123)

Time-Domain Criteria For L2-Stability Of Nonstationary Feedback-Systems

open access: yes, 1973
Criteria for the L2-stability of linear and nonlinear time-varying feedback systems are given. These are conditions in the time domain involving the solution of certain associated matrix Riccati equations and permitting the use of a very general class of
Sundareshan, MK, Thathachar, MAL
core  

A Superintegrable Quantum Field Theory. [PDF]

open access: yesCommun Math Phys
De Clerck M, Evnin O.
europepmc   +1 more source

Nonexistence results for nonlocal equations with critical and supercritical nonlinearities

open access: yes
We prove nonexistence of nontrivial bounded solutions to some nonlinear problems involving nonlocal operators of the form; [GRAPHICS]; These operators are infinitesimal generators of symmetric Levy processes.
Serra Montolí, Joaquim   +1 more
core  

Generative discovery of partial differential equations by learning from math handbooks. [PDF]

open access: yesNat Commun
Xu H   +7 more
europepmc   +1 more source

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