Skip to main content

Table 3 Numerical values of \(\pmb{\mu_{n}}\) and \(\pmb{\nu_{n}}\) when \(\pmb{L = 1}\)

From: Spectral analysis of the integral operator arising from the beam deflection problem on elastic foundation II: eigenvalues

n

Name

Value

\(\boldsymbol{1/ \{ 1 + ( 2\pi(n-1) \mp\pi/2 )^{4}/L^{4} \}}\)

1

\(1/ \{1 + ( h^{-1}(2\pi- \pi/2) )^{4} \}\)

0.356842821387149

 

\(\mu_{1}\)

0.331681981441542

0.141082164173265

\(1/ \{ 1 + ( h^{-1}(2\pi) )^{4} \}\)

0.096154317825982

 

\(\nu_{1}\)

0.020235634105536

0.141082164173265

\(1/ \{1 + ( h^{-1}(2\pi+ \pi/2) )^{4} \}\)

0.019196682744858

 

2

\(1/ \{1 + ( h^{-1}(4\pi- \pi/2) )^{4} \}\)

0.001307826261601

 

\(\mu_{2}\)

0.001302361278230

0.002023744499666

\(1/ \{ 1 + ( h^{-1}(4\pi) )^{4} \}\)

0.000493666532259

 

\(\nu_{2}\)

0.000221108040807

0.000262740095219

\(1/ \{1 + ( h^{-1}(4\pi+ \pi/2) )^{4} \}\)

0.000221067748587

 

3

\(1/ \{1 + ( h^{-1}(6\pi- \pi/2) )^{4} \}\)

0.000062476665124

 

\(\mu_{3}\)

0.000062476224272

0.000068406697161

\(1/ \{ 1 + ( h^{-1}(6\pi) )^{4} \}\)

0.000037391554101

 

\(\nu_{3}\)

0.000023682280310

0.000025034538029

\(1/ \{1 + ( h^{-1}(6\pi+ \pi/2) )^{4} \}\)

0.000023682273941

 

4

\(1/ \{1 + ( h^{-1}(8\pi- \pi/2) )^{4} \}\)

0.000010806849662

 

\(\mu_{4}\)

0.000010806849551

0.000011218760557

\(1/ \{ 1 + ( h^{-1}(8\pi) )^{4} \}\)

0.000007675613651

 

\(\nu_{4}\)

0.000005598484481

0.000005751016121

\(1/ \{1 + ( h^{-1}(8\pi+ \pi/2) )^{4} \}\)

0.000005598484479

 

5

\(1/ \{1 + ( h^{-1}(10\pi- \pi/2) )^{4} \}\)

0.000003179547340

 

\(\mu_{5}\)

0.000003179547340

0.000003244546827

\(1/ \{ 1 + ( h^{-1}(10\pi) )^{4} \}\)

0.000002462115765

 

\(\nu_{5}\)

0.000001935846573

0.000001966635852

\(1/ \{1 + ( h^{-1}(10\pi+ \pi/2) )^{4} \}\)

0.000001935846573