The gauge invariant quark Green's function, defined with a path-ordered phase
factor along a straight line, is studied in two-dimensional QCD in the
large-N_c limit by means of an exact integrodifferential equation. It is found
to be infrared finite with singularities represented by an infinite number of
threshold type branch points with a power of -3/2, starting at positive mass
squared values. The Green's function is analytically determined.Comment: 7 pages, 2 figures. Talk given at the Beppe Nardulli Memorial
Workshop, QCD@Work - Theory and Experiment, 20-23 June 2010, Martina Franca,
Ital