A focal index theorem for null geodesics (Q921614)
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scientific article; zbMATH DE number 4165947
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A focal index theorem for null geodesics |
scientific article; zbMATH DE number 4165947 |
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A focal index theorem for null geodesics (English)
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1989
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The authors use the recent approach of \textit{D. Kalish} [Trans. Am. Math. Soc. 308, No.1, 341-348 (1988; Zbl 0652.58016)] to obtain a focal Morse index theorem for a null geodesic initially and terminally perpendicular to space-like submanifolds of arbitrary co-dimension in a general space- time.
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focal Morse index theorem
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null geodesic
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space-like submanifolds
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space- time
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