共 50 条
- [2] ON DENSITY AND APPROXIMATION PROPERTIES OF SPECIAL SOLUTIONS OF THE HELMHOLTZ-EQUATION ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK, 1992, 72 (07): : 277 - 290
- [7] AN ELEMENTARY CHARACTERIZATION OF THE POSITIVE SOLUTIONS OF HELMHOLTZ-EQUATION BULLETIN DES SCIENCES MATHEMATIQUES, 1985, 109 (04): : 373 - 378
- [8] ON SOME OPERATORS FOR THE HELMHOLTZ-EQUATION IN POLAR COORDINATES COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE I-MATHEMATIQUE, 1989, 309 (01): : 25 - 30
- [9] COMPARISON OF VARIATIONAL AND FINITE-ELEMENT SOLUTIONS OF HELMHOLTZ-EQUATION JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1980, 68 (04): : 1160 - 1162
- [10] ON THE REFLECTION LAW FOR HELMHOLTZ-EQUATION RADIOTEKHNIKA I ELEKTRONIKA, 1993, 38 (02): : 229 - 240