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< **On a particular theorem regarding fixed pointes in ultrametric spaces**
< During this seminar we shall talk about a variant of the Banach contraction theorem (given by N. Ackerman) for ultrametric spaces with a metric with values in a complete lattice.
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> **On a certain fixed point theorem for ultrametric spaces**
> We will discuss some variant of the Banach Contraction Principle, announced by N. Ackerman, for ultrametric spaces with metrics with values in a complete lattice.
On a certain fixed point theorem for ultrametric spaces
We will discuss some variant of the Banach Contraction Principle, announced by N. Ackerman, for ultrametric spaces with metrics with values in a complete lattice.