4,846 reputation
2 7 34

Han de Bruijn

A little bit of Physics would be NO Idleness in Mathematics (HdB)

Original Theorems @ Science & Mathematics:

  • MultiGrid. This Numerical Method is never going to work for
    Hyperbolic Equations.
    I have proved it for the 1-D case. But 1-D is embedded in 3-D.
    So the result is valid for 3-D as well.
    Nevertheless, there is ongoing research on this topic, in vain.
  • MultiGrid. There exist only two flavours for grid refinement
    and grid coarsening: DoubleGrid and TripleGrid.
  • The distinction between Continuous and Discrete is only gradual,
    not essential:
  • Least Squares Finite Element Method.
    Can only be formulated properly as a Unification of
    Finite Elements and Finite Differences.
    Two applications: Ideal Flow in 2-D and 3-D.
    The concept of Dual Elements is important with L.S.FEM.
  • Unification of Finite Elements and Finite Differences for
    Convection and Diffusion can be accomplished via
    Resistor Networks in 2-D and 3-D.

Top Tags (160)

Score 47
Posts 18
Posts % 10
Score 40
Posts 23
Score 28
Posts 16
Score 18
Posts 12
Score 17
Posts 13
Score 11
Posts 13

Top Posts (188) All Questions Answers | Votes Newest

View all questions and answers

Badges (43)

Gold 2

Rarest

Silver 7

Rarest

Bronze 34

Rarest