Az Egri Ho Si Minh Tanárképző Főiskola Tud. Közleményei. 1987. (Acta Academiae Paedagogicae Agriensis : Nova series ; Tom. 18/13)

Tamás Franczia: An analytical method for calculating multicentre integrals built up from GTF-S I

- 36 ^JTTa

d<2> C12) Let us investigate the first integral-factor in the right-hand side of (12). Let and ^k [

ri] be real functions, [

ri] and '

f>

k í

rij ca

n ^ written in the form of the linear combination of Gaussian-functions

: [

rJ = 2 c. 2a J-E. exp [- «jJr^Rj

2] CI3a) J = 2 2 a •kq kcj. exp [- «

k

q[

r

i-Rj

2] C13b> where c . , c. , a

. , ct. J P k q jp' kq are real constants. Putting (13a) and (13b) in the first integral-factor of (12) we get: h NTTTa ,C2) a [MJXI ^k[

ri]

d3

ri " r 2a

. 3 4 KPMJ'] Í 5«iP exp KPMJ'] oo P a (2) a "kq 2a JL2. exp [- a

k

q(r

1-Ej

2]d

! C14)