Research output: Contribution to journal › Article › peer-review
Injectivity Radius of the Prolate Ellipsoid of Revolution. / Берестовский, Валерий Николаевич; Мустафа, Али .
In: Siberian Mathematical Journal, Vol. 66, No. 6, 2, 11.2025, p. 1355-1367.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Injectivity Radius of the Prolate Ellipsoid of Revolution
AU - Берестовский, Валерий Николаевич
AU - Мустафа, Али
N1 - Berestovskii, V. N. Injectivity Radius of the Prolate Ellipsoid of Revolution / V. N. Berestovskii, A. Mustafa // Siberian Mathematical Journal. – 2025. – Vol. 66, No. 6. – P. 1355-1367. – DOI 10.1134/S0037446625060023. – EDN TCSVKU. The research of Berestovskii was carried out in the framework of the State Task to the Sobolev Institute of Mathematics (Project FWNF–2022–0006). The research of Mustafa was supported by the Mathematical Center in Akademgorodok under agreement 075–15–2025–349 dated April 29, 2025, with the Ministry of Science and Higher Education of the Russian Federation.
PY - 2025/11
Y1 - 2025/11
N2 - The injectivity radius of an arbitrary prolate ellipsoid of revolution in three-dimensional Euclidean space is found. It is exactly equal to the distance along the double meridian between its conjugate points symmetric with respect to the pole and is smaller than one half of the length of the equator. A method for arbitrarily accurate computer calculations of the injectivity radius of an arbitrary prolate ellipsoid of revolution is developed and applied.
AB - The injectivity radius of an arbitrary prolate ellipsoid of revolution in three-dimensional Euclidean space is found. It is exactly equal to the distance along the double meridian between its conjugate points symmetric with respect to the pole and is smaller than one half of the length of the equator. A method for arbitrarily accurate computer calculations of the injectivity radius of an arbitrary prolate ellipsoid of revolution is developed and applied.
KW - GEODESIC
KW - JACOBI FIELD
KW - INJECTIVITY RADIUS
KW - CONJUGATE POINTS
KW - EXPONENTIAL MAPPING
KW - ELLIPSOID OF REVOLUTION
KW - ELLIPTIC INTEGRALS
UR - https://www.scopus.com/pages/publications/105022644320
UR - https://elibrary.ru/item.asp?id=84013564
U2 - 10.1134/S0037446625060023
DO - 10.1134/S0037446625060023
M3 - Article
VL - 66
SP - 1355
EP - 1367
JO - Siberian Mathematical Journal
JF - Siberian Mathematical Journal
SN - 0037-4466
IS - 6
M1 - 2
ER -
ID: 72346073