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On linear equations in some non-commutative algebras

The problem of solving linear equations in a non-commutative algebra is in general a highly non-trivial matter. Even in the case of finitely presented algebras, there is no general algorithms for solving seemingly simple equations of the type a X = X b for some elements a and b. In this paper we will demonstrate a method by which it is possible to find all the solutions to linear equations in cer

Teaterns röda fana

Regular column on theatre in the weekly newspaper Arbetaren (The Worker).

Peatlands at a Threshold: Greenhouse Gas Dynamics in a Changing Climate

To be able to predict the strength of climate change and its consequences for mankind, it is of major importance to understand the contemporary greenhouse gas exchange of the terrestrial biosphere, as well as its response to changes in climate. To achieve such understanding both descriptive studies and manipulation experiments are required. Northern peatlands represent an important ecosystem type