Zobrazeno 1 - 10
of 1 103
pro vyhledávání: '"singular points"'
Publikováno v:
East European Journal of Physics, Iss 3, Pp 125-134 (2024)
The problem of the spatial motion of a passively gravitating body during an to the central body of a perturbing body – a test star – is considered. Using the exact expression of the force function, an integral invariant relationship – a quasi-i
Externí odkaz:
https://doaj.org/article/17c26405d35b418398f6df16d19aa7a2
Autor:
Alexey S. Loshkarev
Publikováno v:
Физика волновых процессов и радиотехнические системы, Vol 27, Iss 2, Pp 45-55 (2024)
Background. Visual non-destructive testing of the inner surface of pipes is an important aspect in their production and operation. A defect detected and corrected in a timely manner can significantly reduce the number of defects in production and pre
Externí odkaz:
https://doaj.org/article/f6fd5b0ddd684a2fb79a20f4269c5511
Autor:
Victor Orlov
Publikováno v:
Mathematics, Vol 12, Iss 22, p 3629 (2024)
The paper studies a nonlinear equation including both fractional and ordinary derivatives. The singular Cauchy problem is considered. The theorem of the existence of uniqueness of a solution in the neighborhood of a fixed singular point of algebraic
Externí odkaz:
https://doaj.org/article/e90f1087d12543d08bb76bb33c78a858
Autor:
Yuliia Kholodniak, Yevhen Havrylenko, Serhii Halko, Volodymyr Hnatushenko, Olena Suprun, Tatiana Volina, Oleksandr Miroshnyk, Taras Shchur
Publikováno v:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, Vol 13, Iss 4 (2023)
Interpolation of a point series is a necessary step in solving such problems as building graphs de-scribing phenomena or processes, as well as modelling based on a set of reference points of the line frames defining the surface. To obtain an adequate
Externí odkaz:
https://doaj.org/article/3020243dfc9245d2804a0b9ec88cd123
Publikováno v:
AIMS Mathematics, Vol 8, Iss 1, Pp 2226-2239 (2023)
In this study, the ruled developable surfaces with pointwise 1-type Gauss map of Frenet-type framed base (Ftfb) curve are introduced in Euclidean 3-space. The tangent developable surfaces, focal developable surfaces, and rectifying developable surfac
Externí odkaz:
https://doaj.org/article/34f693136be84ca4abe1f1ee43865d73
Autor:
Dmitry Belyakov
Publikováno v:
Современные информационные технологии и IT-образование, Vol 18, Iss 3, Pp 617-624 (2022)
The article presents the construction and study of a mathematical model of small oscillations of an aerodynamic pendulum in a flow of a moving medium. The model of the impact of the medium on the body is taken as the model of the quasi-static flow ar
Externí odkaz:
https://doaj.org/article/de49cf48c49144a5a4f4201454738e25
Akademický článek
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Akademický článek
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Autor:
Luca Spolaor, Bozhidar Velichkov
Publikováno v:
Mathematics in Engineering, Vol 3, Iss 1, Pp 1-42 (2021)
We give three different proofs of the log-epiperimetric inequality at singular points for the obstacle problem. In the first, direct proof, we write the competitor explicitly; the second proof is also constructive, but this time the competitor is giv
Externí odkaz:
https://doaj.org/article/905543fcf7da4980aa2885a4b0fd2a92