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\textsc{\LARGE{University of Crete}}\\[5pt]
\textsc{\Large{Departments of Mathematics and Applied Mathematics}}\\[15pt]
\Large{\textsc{Colloquium}}
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2:15pm, Tuesday, 11 October, 2016\\
Room A-303\medskip
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\speaker{Christof Melcher}, \affiliation{RWTH, Aachen University}\\[2ex]
\large\textit{Chiral skyrmions near the conformal limit}
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%\noindent
%An undecidability result for the first-order theory of a ring structure leads to a ``weakening" of the language in order
%to find at which point the theory changes from decidable to undecidable. The standard weakenings consist of replacing either
%or both operations by a fragment of it, i.e., an operation or relation that can be defined from it, but for which the converse
%is not (or at least not trivially) true. In this talk I will discuss two different fragments of multiplication: the set of
%images of a degree two polynomial and the relation of coprimeness. I will present my work on the undecidability of the
%first-order theories of certain polynomial rings for each language, and comment on possible further ideas in each case.
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