Synge, J. L. (1987) The Torricelli-Fermat Point Generalised. (Preprint)
Kingston, J. G. and Synge, J. L. (1983) On the Sequence of Pedal Triangles. (Preprint)
Synge, J. L. (1980) On the Vibrations of a Heterogenous String. (Preprint)
Synge, J. L. (1974) A Hollow Water-bag. (Preprint)
Synge, J. L. (1972) Quaternions, Lorentz transformations, and the Conway-Dirac-Eddington matrices. Communications of the Dublin Institute for Advanced Studies. ISSN Series A (Theoretical Physics) 0070-7414
Synge, J. L. (1964) The Petrov Classification of Gravitational Fields. Communications of the Dublin Institute for Advanced Studies. ISSN Series A (Theoretical Physics) 0070-7414
Florides, P. S. and Synge, J. L. (1961) Notes On The Schwarzschild Line-Element. Communications of the Dublin Institute for Advanced Studies. ISSN Series A (Theoretical Physics) 0070-7414
Synge, J. L. (1956) Geometrical Optics in Moving Dispersive Media. Communications of the Dublin Institute for Advanced Studies. ISSN Series A (Theoretical Physics) 0070-7414
O'Brien, Stephen and Synge, J. L. (1952) Jump Conditions at Discontinuities in General Relativity. Communications of the Dublin Institute for Advanced Studies. ISSN Series A (Theoretical Physics) 0070-7414