TY - BOOK AU - NAND, BRAHMA AU - TYAGI, B . S . AU - SHARMA, BHUDEV TI - SPHERICAL HARMONICS AND PARTIAL DIFFERENTIAL EQUATIONS / U1 - 515.2433 PY - 0000///ND CY - MEERUT PB - KEDAR NATH RAM NATH KW - HARMONIC ANALYSIS KW - EQUATIONS - DIFFERENTIAL ER -