Ajevskis, Viktors; Vītola, Kristīne - 2009
)()(
~
)(
)(
)(
)()(
~
0
~
*
~
*
0
where
1
exp
dt
t
xt)(
Ei(x)
is a special function known as exponential …. For this purpose, we consider an
expression d(X
–1
(t, t
0
)δ(t)) where X(t, t
0
) is a fundamental solution of the … following
ordinary homogeneous differential equation:
dttttBdttttTEiettd
tT
00
~
0
,X()(,X(
~
,X …