supported by the Institute for Basic Science(IBS-R029-C4);supported by the National Key Research and Development Program of China(Grant No.2020YFA0712100);National Natural Science Foundation of China(Grant No.12231014);Beijing Scholars Program。
The Turán problem asks for the largest number of edges ex(n,H)in an n-vertex graph not containing a fixed forbidden subgraph H,which is one of the most important problems in extremal graph theory.However,the order of...
supported by the Key Projects of Zhejiang Natural Science Foundation(No.LZ22A010003);ZJNU Shuang-Long Distinguished Professorship Fund(No.YS304319159)。
Edge-to-edge tilings of the sphere by congruent a^(2)bc-quadrilaterals are classified as 3 classes:(1)A 1-parameter family of quadrilateral subdivisions of the octahedron with24 tiles,and a flip modification for one s...
The work was supported by the NSF of China(No.11801393);the Natural Science Foundation of Jiangsu Province,China(No.BK20180831).
PHT-splines are defined as polynomial splines over hierarchical T-meshes with very efficient local refinement properties.The original PHT-spline basis functions constructed by the truncation mechanism have a decay phe...
supported by the Ministry of Education of the Republic of Korea and the National Research Foundation of Korea(NRF-2021S1A5A8073054).
This study aims to create a basis for sustainable conservation by identifying the heritage value of 166 Ikseon-dong.Based on old land registers and cadastral maps of the 1920s and 1930s,it interpreted the construction...
supported by the National Natural Science Foundation of China (Nos. 12001474,12171165, 12261091);Guangdong Natural Science Foundation (No. 2021A1515010374)
In this paper, using the notion of subdivision, the authors generalize the definition of cofibration in digital topology and show that this kind of cofibration is injective in the sense of subdivision. Meanwhile, they...
Land suitability analysis(LSA)is an evaluation method that measures the degree to which land is suitable for certain land use.The primary aims of this study are to identify potentially viable agricultural land in the ...
Anthropogenic activities may affect species diversity and community structure.Butterfly species diversity in relation to human-impact gradient was evaluated in the Baruipur subdivision,outskirts of Kolkata metropolis,...
supported by Project for Innovation Team(Cultivation)of Yunnan Province under Grant No.202005AE160006;Key Project of Yunnan Provincial Science and Technology Department and Yunnan University under Grant No.2018FY001014。
The newly appeared G-SGD algorithm can only heuristically find the basis path set in a simple neural network,so its generalization to a more practical network is hindered.From the perspective of graph theory,the Basis...
In this paper,a new combined approximating and interpolating fivepoint ternary subdivision scheme is presented,which can generate C~2 limiting curve.First,the combined subdivision rules are given.Then,using the Lauren...