TY - JOUR AU - Díaz Díaz, Jesús Ildefonso AU - Díaz Díaz, Gregorio AU - Otero Juez, Jesús PY - 2011 DO - 10.1007/s11200-011-0024-3 SN - 0039-3169 UR - https://hdl.handle.net/20.500.14352/42412 T2 - Studia Geophysica et Geodaetica AB - The (simplified) Backus' Problem (BP) consists in finding a harmonic function u on the domain exterior to the three dimensional unit sphere S, such that u tends to zero at infinity and the norm of the gradient of u takes prescribed values g on S.... LA - eng M2 - 415 PB - Springer KW - Harmonic functions KW - fully nonlinear boundary problem KW - geodesy KW - geomagnetism TI - Construction of the maximal solution of Backus' problem in geodesy and geomagnetism TY - journal article VL - 55 ER -