Elliptic cohomologies: an introductory survey.

It is shown that the implication of an MV-algebra is determined by de Morgan negation operations on a family of quotients of the given algebra; these quotients may be taken to be totally ordered. Certain existing results on the uniqueness of an MV-algebra implication are thereby elucidated and new criteria for uniqueness derived. These rely on a characterisation of chains on which a de Morgan negation is necessarily unique.

The solution of parabolic models by finite element space and $A$ -stable time discrezation

Nedoma, J.

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Global attractors of one-dimensional parabolic equations: sixteen examples

Fiedler, Bernold

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