We study the multiparameter
p-Laplacian Dirichlet problem
{
(
φ
p
(
u
′
(
x
)
)
)
′
+
λ
(
k
u
p
−
1
+
∑
i
=
1
m
a
i
u
q
i
)
−
μ
∑
j
=
1
n
b
j
u
r
j
=
0
,
−
1
<
x
<
1
,
u
(
−
1
)
=
u
(
1
)
=
0
,
where
p
>
1
,
φ
p
(
y
)
=
|
y
|
p
−
2
y
,
(
φ
p
(
u
′
)
)
′
is the one-dimensional
p-Laplacian,
λ
>
0
and
μ
≥
0
are two bifurcation parameters. We assume that
k
≥
0
,
,
0
<
p
−
1
<
q
1
<
q
2
<
⋅
⋅
⋅
<
q
m
<
r
1
<
r
2
<
⋅
⋅
⋅
<
r
n
,
for
j
=
1
,
2
,
…
,
n
. We mainly prove that, on the
(
λ
,
‖
u
‖
∞
)
-plane, the bifurcation diagram consists of a strictly decreasing curve for
μ
=
0
,
and always consists of a
⊂
-shaped curve for fixed
μ
>
0
. We then study the structures and evolution of the bifurcation diagrams with varying
μ
≥
0
.