## Partial differential equations with minimal smoothness and applicationsIn recent years there has been a great deal of activity in both the theoretical and applied aspects of partial differential equations, with emphasis on realistic engineering applications, which usually involve lack of smoothness. On March 21-25, 1990, the University of Chicago hosted a workshop that brought together approximately fortyfive experts in theoretical and applied aspects of these subjects. The workshop was a vehicle for summarizing the current status of research in these areas, and for defining new directions for future progress - this volume contains articles from participants of the workshop. |

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### Contents

Weakly elliptic systems with obstacle constraints | 1 |

Some remarks on Widders theorem and uniqueness | 15 |

On null sets of Pharmonic measures | 33 |

Copyright | |

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