A Note on Klein’s Oscillation Theorem for Periodic Boundary Conditions
1975 ◽
Vol 17
(5)
◽
pp. 749-755
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Keyword(s):
Recently Howe [4] has considered the oscillation theory for the two-parameter eigenvalue problem1a1bsubjected to the boundary conditions2a2bwhere for i = 1, 2, — ∞<ai<bi<∞, and qi are real-valued, continuous functions in [ai, bi], pi is positive in [ai, biz], and pi(ai)=pi(bi). Furthermore, it is also assumed that (A1B2—A2B1)≠0 for all values of x1 and x2 in their respective intervals.
1982 ◽
Vol 5
(2)
◽
pp. 107-118
◽
1971 ◽
Vol 23
(4)
◽
pp. 699-703
◽
1978 ◽
Vol 80
(3-4)
◽
pp. 357-362
◽
1971 ◽
Vol 69
(2)
◽
pp. 139-148
1979 ◽
Vol 84
(3-4)
◽
pp. 249-257
◽
2019 ◽
2011 ◽
Vol 12
(3)
◽
pp. 239-244