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词条 Carleman's equation
释义

  1. References

In mathematics, Carleman's equation is a Fredholm integral equation of the first kind with a logarithmic kernel. Its solution was first given by Torsten Carleman in 1922.

The equation is

The solution for b − a ≠ 4 is

If b − a = 4 then the equation is solvable only if the following condition is satisfied

In this case the solution has the form

where C is an arbitrary constant.

For the special case f(t) = 1 (in which case it is necessary to have b − a ≠ 4), useful in some applications, we get

References

  • CARLEMAN, T. (1922) Uber die Abelsche Integralgleichung mit konstanten Integrationsgrenzen. Math. Z., 15, 111–120
  • Gakhov, F. D., Boundary Value Problems [in Russian], Nauka, Moscow, 1977
  • A.D. Polyanin and A.V. Manzhirov, Handbook of Integral Equations, CRC Press, Boca Raton, 1998. {{ISBN|0-8493-2876-4}}

2 : Fredholm theory|Integral equations

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