4 results
Sturmian theory for nonself-adjoint differential equations of second order
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- Journal:
- Proceedings of the Royal Society of Edinburgh. Section A: Mathematics / Volume 105 / Issue 1 / 1987
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- 14 November 2011, pp. 337-343
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- 1987
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An extension of the Sturm–Picone theorem to elliptic differential equations
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- Journal:
- Proceedings of the Royal Society of Edinburgh. Section A: Mathematics / Volume 97 / 1984
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- 14 November 2011, pp. 209-215
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- 1984
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On the existence of nodal domains for elliptic differential operators
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- Journal:
- Proceedings of the Royal Society of Edinburgh. Section A: Mathematics / Volume 94 / Issue 3-4 / 1983
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- 14 November 2011, pp. 287-299
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- 1983
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Existence of conjugate points for second and fourth order differential equations
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- Journal:
- Proceedings of the Royal Society of Edinburgh. Section A: Mathematics / Volume 89 / Issue 3-4 / 1981
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- 14 November 2011, pp. 281-291
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- 1981
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