SYMPLECTIC-GEOMETRY OF RADIATIVE MODES AND CONSERVED QUANTITIES AT NULL INFINITY

[21] STREUBEL M, 1978, THESIS MAX PLANCK I

[22] SOME TOTAL INVARIANTS OF ASYMPTOTICALLY FLAT SPACE-TIMES [J]. JOURNAL OF MATHEMATICAL PHYSICS, 1968, 9 (06) : 861 - +

[23] Witten L., 1977, ASYMPTOTIC STRUCTURE, DOI DOI 10.1007/978-1-4684-2343-3_1

[21] STREUBEL M, 1978, THESIS MAX PLANCK I

[22] SOME TOTAL INVARIANTS OF ASYMPTOTICALLY FLAT SPACE-TIMES [J]. JOURNAL OF MATHEMATICAL PHYSICS, 1968, 9 (06) : 861 - +

[23] Witten L., 1977, ASYMPTOTIC STRUCTURE, DOI DOI 10.1007/978-1-4684-2343-3_1