TY - JOUR AU - Terence L. J. Harris TI - An a.e. lower bound for Hausdorff dimension under vertical projections in the Heisenberg group JO - Annales Fennici Mathematici PY - 2020 SP - 723–737 EP - 723–737 VL - 45 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.5186/aasfm.2020.4529/ DO - 10.5186/aasfm.2020.4529 LA - en ID - AFM_2020_45_2_a6 ER -