Proceedings of the Spring School held in Prague, May 31-June 6, 1998

Vol. 6

**Editors:** Krbec, Miroslav; Kufner, Alois

**Organized by:** Academy of Sciences of the Czech Republic, Mathematical Institute

**Venue:** Praha, 1998

**Publisher:** Czech Academy of Sciences, Mathematical Institute, Praha, 1999

**ISBN:** 80-85823-38-1

MR1777834 | Zbl 0952.00033

MSC: 00B25, 46-06, 47-06

iii | Table of contents. |

5-6 | Preface. |

1-49 | Extension theory for Sobolev spaces on open sets with Lipschitz boundaries. Burenkov, Viktor I. |

50-92 | Some results in the theory of Orlicz spaces and applications to variational problems. Cianchi, Andrea |

93-118 | Interpolation theory and measures related to operator ideals. Cobos, Fernando |

119-155 | On Wiener's type regularity of a boundary point for higher order elliptic equations. Maz'ya, Vladimir |

156-199 | Optimal Sobolev embeddings. Pick, Luboš |

200-222 | Quarks, fractals, non-linearities, and related elliptic operators. Triebel, Hans |

223-269 | Superlinear equations, potential theory and weighted norm inequalities. Verbitsky, Igor E. |

270-312 | Functions of least gradient and BV functions. Ziemer, William P. |

313-314 | List of short comunications. |

315-323 | List of participants. |