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Let $N_{g}$ denote the closed non-orientable surface of genus $g$ and let${\mathcal M} _g$ denote the mapping class group of $N_{g}$. Let ${\mathcal T}_g$ denote the twist subgroup of ${\mathcal M} _g$ which is the subgroup of${\mathcal M} _g$ is generated by all Dehn twists. In this thesis, we provedthat ${\mathcal T} _g$ is generated by six involutions for $g \geq 16$ or $g =14$.

Generating twist subgroup of mapping class group of non-orientable surface by involutions