%0 Journal Article %T A class of generalized uniform asymptotic expansions %A Wilson C. Obi %J International Journal of Mathematics and Mathematical Sciences %D 1978 %I Hindawi Publishing Corporation %R 10.1155/s0161171278000204 %X In [1] E. L. Reiss obtained a multivariable expansion of the problem L[y] ¡é ¡ë y ¡é ? 3+2 ¦Ìy ¡é ? 2+y=0, t>0;y(0; ¦Ì)=0, y ¡é ? 2(0, ¦Ì)=1 by means of a technique which does not employ the traditional method of using a secularity condition in obtaining higher order approximations. In this paper Reiss' technique is formalized and new results are established. %K asymptotic expansions %K ordinary linear differential equations %K uniform asymptotic expansions %K and multivariable expanions. %U http://dx.doi.org/10.1155/S0161171278000204