%0 Journal Article %A Takashi Okaji %A Hubert Kalf %A Osanobu Yamada %T The Dirac operator with mass $m_0 \ge 0$: non-existence of zero modes and of threshold eigenvalues %J Documenta mathematica %D 2015 %P 37-64 %V 20 %U http://geodesic.mathdoc.fr/articles/10.4171/dm/485/ %R 10.4171/dm/485 %F 10_4171_dm_485