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dc.contributor.author |
Eremenko, A. |
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dc.contributor.author |
Gabrielov, A. |
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dc.contributor.author |
Tarasov, V. |
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dc.date.accessioned |
2018-07-10T13:57:10Z |
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dc.date.available |
2018-07-10T13:57:10Z |
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dc.date.issued |
2016 |
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dc.identifier.citation |
Spherical Quadrilaterals with Three Non-integer Angles / A. Eremenko, A. Gabrielov, V. Tarasov // Журнал математической физики, анализа, геометрии. — 2016. — Т. 12, № 2. — С. 134-167. — Бібліогр.: 14 назв. — англ. |
uk_UA |
dc.identifier.issn |
1812-9471 |
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dc.identifier.other |
Mathematics Subject Classification 2000: 30C20,34M03 |
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dc.identifier.uri |
http://dspace.nbuv.gov.ua/handle/123456789/140551 |
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dc.description.abstract |
A spherical quadrilateral is a bordered surface homeomorphic to a closed disk, with four distinguished boundary points called corners, equipped with a Riemannian metric of constant curvature 1, except at the corners, and such that the boundary arcs between the corners are geodesic. We discuss the problem of classification of these quadrilaterals and perform the classification up to isometry in the case that one corner of a quadrilateral is integer (i.e., its angle is a multiple of π) while the angles at its other three corners are not multiples of π. The problem is equivalent to classification of Heun's equations with real parameters and unitary monodromy, with the trivial monodromy at one of its four singular point. |
uk_UA |
dc.language.iso |
en |
uk_UA |
dc.publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
uk_UA |
dc.relation.ispartof |
Журнал математической физики, анализа, геометрии |
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dc.title |
Spherical Quadrilaterals with Three Non-integer Angles |
uk_UA |
dc.type |
Article |
uk_UA |
dc.status |
published earlier |
uk_UA |
dc.identifier.udc |
DOI: doi.org/10.15407/mag12.02.134 |
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