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A finite presentation for the subgroup of the mapping class group of acompact non-orientable surface generated by all Dehn twists was given byStukow. In this paper, we give an infinite presentation for this group, mainlyusing the presentation given by Stukow and Birman exact sequences on mappingclass groups of non-orientable surfaces.

An infinite presentation for the twist subgroup of the mapping class group of a compact non-orientable surface