Jurgen Appell

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http://www.mathematik.uni-wuerzburg.de/~appell/

Articles in Scholarly Journals [Incomplete List]

  1. A continuation and existence result for a boundary value problem on an unbounded domain arising for the electrical potential in a cylindrical double layer?
    Journal of Mathematical Analysis and Applications, vol. 332, no. 2, pp. 1134–1147, 2007
  2. How to Solve Hammerstein Equations
    Journal of Integral Equations and Applications, vol. 18, no. 3, pp. 287–296, 2006
  3. On some Banach space constants arising in nonlinear fixed point and eigenvalue theory
    Fixed Point Theory and Applications, vol. 2004, no. 4, pp. 317–336, 2004
  4. A Note on the Fredholm Property of Partial Integral Equations of Romanovskij Type
    Journal of Integral Equations and Applications, vol. 16, no. 1, pp. 25–32, 2004
  5. On a class of maps related to the Furi-Martelli-Vignoli spectrum
    Annali di Matematica Pura ed Applicata, vol. 179, no. 1, pp. 215–228, 2001
  6. Estimates for the Jung constant in Banach lattices
    Israel Journal of Mathematics, vol. 116, no. 1, pp. 171–187, 2000
  7. Some elementary examples in nonlinear operator theory
    Mathematical and Computer Modelling, vol. 32, no. 11-13, pp. 1367–1376, 2000
  8. A comparison of different spectra for nonlinear operators
    Nonlinear Analysis, vol. 40, no. 1-8, pp. 73–90, 2000
  9. On Some Partial Integral Equations Arising in the Mechanics of Solids
    ZAMM, vol. 79, no. 10, pp. 703–713, 1999
  10. On Some Partial Integral Equations Arising in the Mechanics of Solids
    ZAMM, vol. 79, no. 10, pp. 703–713, 1999
  11. The packing constant in rearrangement-invariant spaces
    Functional Analysis and Its Applications, vol. 32, no. 4, pp. 273–275, 1998
  12. Partial integral operators on C([a,b]?[c,d])
    Integral Equations and Operator Theory, vol. 27, no. 2, pp. 125–140, 1997
  13. Some spectral theory for nonlinear operators
    Nonlinear Analysis, vol. 28, no. 12, pp. 1955–1976, 1997
  14. Some spectral theory for nonlinear operators
    Nonlinear Analysis, vol. 30, no. 5, pp. 3135–3146, 1997
  15. New results on newton-kantorovich approximations with applications to nonlinear integral equations
    Numerical Functional Analysis and Optimization, vol. 18, no. 1, pp. 1–17, 1997
  16. The Bogoljubov-Krylov averaging principle and the Cauchy problem for ordinary differential equations on the half-line
    Nonlinear Differential Equations and Applications NoDEA, vol. 2, no. 2, pp. 231–244, 1995
  17. On the Two-step Newton Method for the Solution of Nonlinear Operator Equations
    Mathematische Nachrichten, vol. 172, no. 1, pp. 5–14, 1995
  18. Boundary Value Problems for Integro-Differential Equations of Barbashin Type
    Journal of Integral Equations and Applications, vol. 6, no. 1, pp. 1–30, 1994
  19. A general model of evolutionary processes. Exponential dichotomy—I
    Nonlinear Analysis, vol. 21, no. 3, pp. 207–218, 1993
  20. Bifurcation points of Hammerstein equations
    Integral Equations and Operator Theory, vol. 16, no. 1, pp. 15–37, 1993
  21. On the equivalence of the Lorentz and Marcinkiewicz norm on subsets of measurable functions
    Journal of Functional Analysis, vol. 104, no. 1, pp. 47–53, 1992
  22. New theorems on asymptotic bifurcation points
    Nonlinear Analysis, vol. 18, no. 3, pp. 269–275, 1992
  23. On the application of the newton-kantorovich method to nonlinear integral equations of uryson type
    Numerical Functional Analysis and Optimization, vol. 12, no. 3, pp. 271–283, 1991
  24. Multivalued superposition operators in ideal spaces of vector functions.I
    Indagationes Mathematicae, vol. 2, no. 4, pp. 385–395, 1991
  25. Composing infinitely differentiable functions
    Mathematische Zeitschrift, vol. 206, no. 1, pp. 659–670, 1991
  26. Lipschitz and darbo conditions for the superposition operator in some non-ideal spaces of smooth functions
    Annali di Matematica Pura ed Applicata, vol. 158, no. 1, pp. 205–217, 1991
  27. General existence theorems for quasilinear elliptic systems without monotonicity
    Journal of Mathematical Analysis and Applications, vol. 145, no. 1, pp. 26–38, 1990
  28. Lipschitz and darbo conditions for the superposition operator in ideal spaces
    Annali di Matematica Pura ed Applicata, vol. 152, no. 1, pp. 123–137, 1988
  29. ?ber die $$\mathcal{L}$$ -Charakteristik nichtlinearer Operatoren in R?umen integrierbarer Funktionen
    Manuscripta Mathematica, vol. 62, no. 3, pp. 355–367, 1988
  30. Estimating the Banach-Mazur Distance of Some Pairs of Symmetric Spaces
    Mathematische Nachrichten, vol. 132, no. 1, pp. 7–14, 1987
  31. Über die Differenzierbarkeit des Superpositions-Operators in Orlicz-Räumen
    Mathematische Nachrichten, vol. 123, no. 1, pp. 335–344, 1985
  32. On the differentiability of the superposition operator in hölder and Sobolev spaces
    Nonlinear Analysis, vol. 8, no. 10, pp. 1253–1254, 1984
  33. On a theorem of M.A. Krasnosel'skij
    Nonlinear Analysis, vol. 7, no. 7, pp. 695–706, 1983
  34. Implicit functions, nonlinear integral equations, and the measure of noncompactness of the superposition operator
    Journal of Mathematical Analysis and Applications, vol. 83, no. 1, pp. 251–263, 1981
  35. Ein Abbildungsgrad f?r approximierbare Operatoren in Banachr?umen
    Archiv der Mathematik, vol. 34, no. 1, pp. 259–271, 1980