Zobrazeno 1 - 10
of 1 703
pro vyhledávání: '"Li Yanlin"'
Publikováno v:
Open Mathematics, Vol 22, Iss 1, Pp 1-49 (2024)
This article investigates the geometric and topologic of warped product submanifolds in Riemannian warped product Qεm×R{{\mathbb{Q}}}_{\varepsilon }^{m}\times {\mathbb{R}}. In this respect, we obtain the first Chen inequality that involves extrinsi
Externí odkaz:
https://doaj.org/article/2950f28292294d638fa75aa8d0d414bc
Publikováno v:
Guangxi Zhiwu, Vol 44, Iss 1, Pp 193-206 (2024)
Saxifraga Tourn. ex L. is rich in species diversity with about 440-500 species and broad distribution. The taxonomical issues of this genus have been continuously concerned by the botanists. Saxifraga has important ornamental and medicinal values. So
Externí odkaz:
https://doaj.org/article/5b1f9520e1d24e3ca0f439338bcfb377
Publikováno v:
Demonstratio Mathematica, Vol 56, Iss 1, Pp 267-287 (2023)
In this article, we investigate the relationships between the instantaneous invariants of a one-parameter spatial movement and the local invariants of the axodes. Specifically, we provide new proofs for the Euler-Savary and Disteli formulas using the
Externí odkaz:
https://doaj.org/article/61cd1e31eb5d4dc59ad3096dd207018c
Publikováno v:
Open Mathematics, Vol 21, Iss 1, Pp 173-187 (2023)
The prime objective of the approach is to give geometric classifications of kk-almost Ricci solitons associated with paracontact manifolds. Let M2n+1(φ,ξ,η,g){M}^{2n+1}\left(\varphi ,\xi ,\eta ,g) be a paracontact metric manifold, and if a KK-para
Externí odkaz:
https://doaj.org/article/dd931771cc97401292c67838f5586d88
Publikováno v:
中西医结合护理, Vol 9, Iss 2, Pp 60-63 (2023)
Objective To investigate the effect of psychological intervention combined with five-tone music therapy on relieving anxiety and depression of patients undergoing colonoscopy. Methods Totally 100 patients undergoing colonoscopy were randomly divided
Externí odkaz:
https://doaj.org/article/9e4e608753f0414c8f16a57488a1f0e8
Publikováno v:
Yuanzineng kexue jishu, Vol 56, Iss 12, Pp 2564-2572 (2022)
Control rod hydraulic drive system (CRHDS) is the key power control equipment of 200 MW Nuclear Heating Reactor (NHR-200), and the capacitance rod position measurement sensor (CRPMS) is the key measurement equipment of CRHDS. For the measurement erro
Externí odkaz:
https://doaj.org/article/b98291ae16544967a39787bb53077835
Geometry of conformal η-Ricci solitons and conformal η-Ricci almost solitons on paracontact geometry
Publikováno v:
Open Mathematics, Vol 20, Iss 1, Pp 574-589 (2022)
We prove that if an η\eta -Einstein para-Kenmotsu manifold admits a conformal η\eta -Ricci soliton then it is Einstein. Next, we proved that a para-Kenmotsu metric as a conformal η\eta -Ricci soliton is Einstein if its potential vector field VV is
Externí odkaz:
https://doaj.org/article/47c92c2f9b984806b366ac34491c0713
In 1991, Beardon and Stephenson [2] generalized the classical Schwarz-Pick lemma in hyperbolic geometry to the discrete Schwarz-Pick lemma for Andreev circle packings. This paper continues to investigate the discrete Schwarz-Pick lemma for generalize
Externí odkaz:
http://arxiv.org/abs/2411.06274
Autor:
Li Yanlin
Publikováno v:
Zhishi guanli luntan, Vol 4, Iss 4, Pp 232-245 (2019)
[Purpose/significance] An essential part of special collections department’s work is to routinely update metadata that is unique to special collections: Paper, Printing, Genre, Binding and Provenance Evidence, etc. Librarians can frequently encount
Externí odkaz:
https://doaj.org/article/4ccbe5a28dc34c638310dc8cc53a5c90
Autor:
Yu Ni, Shao Yufeng, Wang Anrong, Wang Zhuang, Yang Jie, Tian Qing, Yi Linfang, Yang Qiming, Li Yanlin, Chen Peng, Li Chong, Liu Shuanfan, Zuo Renjie, Yuan Jie
Publikováno v:
ITM Web of Conferences, Vol 45, p 02002 (2022)
To improve the transceiver quality of Free Space Optical (FSO) system and ensure that user access is feasible the network, a high-speed full-duplex 100 meters FSO transmission scheme using 67% duty cycle RZ-4PAM downlink and alternative mark inversio
Externí odkaz:
https://doaj.org/article/82fa6ef8b1024cc2806e49b92e935bf1