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Оn momentum flow density of the gravitational field. / Drivotin, O. I.
в: Vestnik Sankt-Peterburgskogo Universiteta, Prikladnaya Matematika, Informatika, Protsessy Upravleniya, Том 17, № 2, 2021, стр. 137-147.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Оn momentum flow density of the gravitational field
AU - Drivotin, O. I.
N1 - Publisher Copyright: © 2021 Saint Petersburg State University. All rights reserved.
PY - 2021
Y1 - 2021
N2 - Momentum is considered on the basis of the approach widely used in the calculus of variations and in the optimal control theory, where variation of a cost functional is investigated. In physical theory, it is the action functional. Action variation under Lie dragging can be expressed as a surface integral of some differential form. The momentum density flow is defined using this form. In this work, the momentum balance equation is obtained. This equation shows that the momentum field transforms into a momentum of a mass. Examples showing the momentum flow structure for a mass distribution representing a uniform thin layer are provided.
AB - Momentum is considered on the basis of the approach widely used in the calculus of variations and in the optimal control theory, where variation of a cost functional is investigated. In physical theory, it is the action functional. Action variation under Lie dragging can be expressed as a surface integral of some differential form. The momentum density flow is defined using this form. In this work, the momentum balance equation is obtained. This equation shows that the momentum field transforms into a momentum of a mass. Examples showing the momentum flow structure for a mass distribution representing a uniform thin layer are provided.
KW - Action variation of the gravitational field
KW - Momentum balance equation
KW - Momentum flow density of the gravitational field
KW - Thin layer with uniform mass distribution
KW - momentum flow density of the gravitational field
KW - momentum balance equation
KW - thin layer with uniform mass distribution
KW - action variation of the gravitational field
UR - http://www.scopus.com/inward/record.url?scp=85112010311&partnerID=8YFLogxK
U2 - 10.21638/11701/SPBU10.2021.204
DO - 10.21638/11701/SPBU10.2021.204
M3 - статья
AN - SCOPUS:85112010311
VL - 17
SP - 137
EP - 147
JO - ВЕСТНИК САНКТ-ПЕТЕРБУРГСКОГО УНИВЕРСИТЕТА. ПРИКЛАДНАЯ МАТЕМАТИКА. ИНФОРМАТИКА. ПРОЦЕССЫ УПРАВЛЕНИЯ
JF - ВЕСТНИК САНКТ-ПЕТЕРБУРГСКОГО УНИВЕРСИТЕТА. ПРИКЛАДНАЯ МАТЕМАТИКА. ИНФОРМАТИКА. ПРОЦЕССЫ УПРАВЛЕНИЯ
SN - 1811-9905
IS - 2
ER -
ID: 85585597