TY - JOUR ID - Elton2018 LB - Elton2018 AU - Elton, Daniel M. TI - On the non-existence of zero modes ST - On the non-existence of zero modes JO - Opuscula Math. JA - Opuscula Math. JF - Opuscula Mathematica PY - 2018 VL - 38 IS - 4 SP - 537 EP - 556 DO - https://doi.org/10.7494/OpMath.2018.38.4.537 UR - https://doi.org/10.7494/OpMath.2018.38.4.537 AB - We consider magnetic fields on \(\mathbb{R}^3\) which are parallel to a conformal Killing field. When the latter generates a simple rotation we show that a Weyl-Dirac operator with such a magnetic field cannot have a zero mode. In particular this allows us to expand the class of non zero mode producing magnetic fields to include examples of non-trivial smooth compactly supported fields. KW - Weyl-Dirac operator KW - zero modes SN - 1232-9274 ER -