Results 11 to 20 of about 11,355 (304)
The uncertainty principle: Variations on a theme [PDF]
Bulletin of the American Mathematical Society, 2021 We show how a number of well-known uncertainty principles for the Fourier transform, such as the Heisenberg uncertainty principle, the Donoho–Stark uncertainty principle, and Meshulam’s nonabelian uncertainty principle, have little to do with the structure of the Fourier transform itself.
Avi Wigderson, Yuval Wigderson
openaire +2 more sources
Theory of variational quantum simulation [PDF]
Quantum, 2019 The variational method is a versatile tool for classical simulation of a variety of quantum systems. Great efforts have recently been devoted to its extension to quantum computing for efficiently solving static many-body problems and simulating real and ...
Xiao Yuan +4 more
doaj +1 more source
Billiards in confocal quadrics as a Pluri-Lagrangian system [PDF]
Theoretical and Applied Mechanics, 2016 We illustrate the theory of one-dimensional pluri-Lagrangian systems with the example of commuting billiard maps in confocal quadrics.
Suris Yuri B.
doaj +1 more source
, 2004 Variational integrators are a class of discretizations for mechanical systems which are derived by discretizing Hamilton's principle of stationary action.
West, Matthew
core +1 more source
Local variational principle [PDF]
Physical Review E, 2002 15 pages, 5 figures, one more section ...
openaire +3 more sources
Applied Sciences, 2022 Columnar inclusion is a versatile and cost-effective technique for improving weak soils. Currently, most approaches are based on the “equal strain” assumption to calculate the deformation of soft ground reinforced by columnar inclusions. In this study, a
Zan Zhou +3 more
doaj +1 more source
Variational Methods for Nonsmooth Mechanics [PDF]
, 2003 In this thesis we investigate nonsmooth classical and continuum mechanics and its discretizations by means of variational numerical and geometric methods.
Fetecau, Razvan Constantin
core +1 more source
New Variational Principles for Two Kinds of Nonlinear Partial Differential Equation in Shallow Water [PDF]
Journal of Applied and Computational MechanicsVariational principles are very important for a lot of nonlinear problems to be analyzed theoretically or solved numerically. By the popular semi-inverse method and designing trial-Lagrange functionals skillfully, new variational principles are ...
Xiao-Qun Cao +4 more
doaj +1 more source
Energies, 2022 A brief review of the development of ideas on extremal principles in the theory of heat and mass transfer processes (including those in reacting media) is given. The extremal principles of non-equilibrium thermodynamics are critically examined.
Igor Donskoy
doaj +1 more source
Thermomechanical Variational Principles for Dissipative Materials with Application to Strain Localization in Bulk Metallic Glasses [PDF]
, 2004 This thesis is concerned with variational principles for general coupled thermomechanical problems in dissipative materials including finite elastic and plastic deformation, non-Newtonian viscosity, rate sensitivity, arbitrary flow and hardening rule, as
Yang, Qiang
core +1 more source