• Weak formulations are important tools for the analysis of mathematical equations that permit the transfer of concepts of linear algebra to solve problems...
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  • equation show up (the new form is called the weak formulation, and the solutions to it are called weak solutions). Somewhat surprisingly, a differential...
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  • continuous operator problem, such as a differential equation, commonly in a weak formulation, to a discrete problem by applying linear constraints determined by...
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  • Thumbnail for Finite element method
    computer. The first step is to convert P1 and P2 into their equivalent weak formulations. If u {\displaystyle u} solves P1, then for any smooth function v...
    60 KB (7,812 words) - 10:08, 27 June 2025
  • Thumbnail for Goldbach's weak conjecture
    In number theory, Goldbach's weak conjecture, also known as the odd Goldbach conjecture, the ternary Goldbach problem, or the 3-primes problem, is the...
    9 KB (1,092 words) - 20:22, 24 June 2025
  • streamline upwind Petrov–Galerkin pressure-stabilizing Petrov–Galerkin formulation for incompressible Navier–Stokes equations can be used for finite element...
    37 KB (7,161 words) - 23:30, 19 June 2025
  • methods, where the so-called weakened weak (W2) formulation based on the G space theory were developed. The W2 formulation offers possibilities for formulate...
    16 KB (2,421 words) - 09:53, 15 April 2025
  • functional. The functional Φ {\displaystyle \Phi } is said to satisfy the weak Palais–Smale condition if for each sequence { x n } ⊂ X {\displaystyle \{x_{n}\}\subset...
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  • Weak form and strong form may refer to: Weaker and stronger versions of a hypothesis, theorem or physical law Weak formulations and strong formulations...
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  • condition of extremum (functional derivative equal zero) appears in a weak formulation (variational form) integrated with an arbitrary function δf. The fundamental...
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  • u ∈ U such that Λ u = f . {\displaystyle \Lambda u=f.} However, in the weak formulation, this equation is only required to hold when "tested" against all other...
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  • Thumbnail for Hilbert space
    consider a generalized solution (known as a weak solution) by enlarging the class of functions. Many weak formulations involve the class of Sobolev functions...
    128 KB (17,469 words) - 06:51, 28 May 2025
  • introduced as follows. Let us consider an abstract problem posed as a weak formulation on a pair of Hilbert spaces V {\displaystyle V} and W {\displaystyle...
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  • Helmholtz theorem. However, the compactness restriction in the usual formulation of the Hodge decomposition can be replaced by suitable decay assumptions...
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  • optimization, the fundamental theorem of linear programming states, in a weak formulation, that the maxima and minima of a linear function over a convex polygonal...
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  • Thumbnail for John Forbes Nash Jr.
    based primarily on the judicious choice of test functions in the weak formulation of partial differential equations, is in strong contrast to Nash's...
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  • {\displaystyle X} and X ∗ {\displaystyle X^{*}} are endowed with strong topology and weak* topology respectively. There exists r > 0 {\displaystyle r>0} such that...
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  • plausible: weak formulations (which hold that precaution in the face of uncertain harms is permissible) are trivial, while strong formulations (which hold...
    65 KB (7,792 words) - 09:58, 13 June 2025
  • _{\Gamma _{N}}\mathbf {h} \cdot \mathbf {v} .} Having this in mind, the weak formulation of the Navier–Stokes equations is expressed as: find  u ∈ L 2 ( R +...
    97 KB (15,478 words) - 20:43, 19 June 2025
  • Thumbnail for Terence Tao
    law, which had previously been proved in weaker formulations by many other authors. In Tao and Vu's formulation, the circular law becomes an immediate consequence...
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  • {W}}=[L^{2}(\Omega )]^{3}} be two generic test functions. To obtain the weak formulation: multiply by p ∈ U {\displaystyle p\in U} the first equation of the...
    23 KB (3,922 words) - 16:57, 28 September 2024
  • Thumbnail for Path integral formulation
    The path integral formulation is a description in quantum mechanics that generalizes the stationary action principle of classical mechanics. It replaces...
    86 KB (14,277 words) - 08:57, 19 May 2025
  • the resulting Z0 and γ0 likewise have zero weak isospin. Weak hypercharge Weak charge Mathematical formulation of the Standard Model Glashow, Sheldon L...
    11 KB (1,111 words) - 22:06, 24 May 2025
  • applying a greedy algorithm, usually the fixed point algorithm, to the weak formulation of the problem. For each iteration i of the algorithm, a mode of the...
    12 KB (1,469 words) - 05:00, 17 April 2025
  • Thumbnail for Poisson's equation
    equation Helmholtz equation Uniqueness theorem for Poisson's equation Weak formulation Harmonic function Heat equation Potential theory Jackson, Julia A.;...
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  • least 21 formulations of Mach's principle are possible, some being considered more strongly Machian than others.: 530  A relatively weak formulation is the...
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  • Thumbnail for Computational fluid dynamics
    mathematical problem (the partial differential equation) to be cast in a weak formulation. This is typically done by multiplying the differential equation by...
    68 KB (8,648 words) - 23:04, 22 June 2025
  • Thumbnail for Stokes' theorem
    a non-Lipschitz surface. One (advanced) technique is to pass to a weak formulation and then apply the machinery of geometric measure theory; for that...
    30 KB (4,864 words) - 15:15, 13 June 2025
  • both lepton number and baryon number. Standard Model (mathematical formulation) Weak charge Donoghue, J.F.; Golowich, E.; Holstein, B.R. (1994). Dynamics...
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  • recursive majority gate formulation), and Yoav Freund (boost by majority), were not adaptive and could not take full advantage of the weak learners. Schapire...
    21 KB (2,241 words) - 11:43, 18 June 2025