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pro vyhledávání: '"Integer triangle"'
Akademický článek
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Autor:
Emrys Read
Publikováno v:
The Mathematical Gazette. 106:291-299
Any mathematics student who has ever used the cosine rule to investigate simple properties of an integer triangle will immediately have realised that the cosine of each angle of the triangle must be a rational number. It is clear, however, that the s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::912cec658fcb7011e1c0f92f98034f21
https://doi.org/10.1017/mag.2022.69
https://doi.org/10.1017/mag.2022.69
Akademický článek
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Autor:
Oleg Karpenkov
Publikováno v:
Russian Mathematical Surveys. 61:1178-1179
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8437cdd149d04e1b8c95c9b6b42b5036
https://doi.org/10.1070/rm2006v061n06abeh004374
https://doi.org/10.1070/rm2006v061n06abeh004374
Publikováno v:
Математика и информатика / Mathematics and Informatics. 61(5):506-517
Externí odkaz:
https://www.ceeol.com/search/article-detail?id=701912
Autor:
Valery Karachik
Publikováno v:
Computational Mathematics and Mathematical Physics. 60:144-162
A set of necessary solvability conditions for the class $${{\mathcal{N}}_{k}}$$ of Neumann-type problems for the polyharmonic equation with a polynomial right-hand side in the unit ball is obtained. These conditions have the form of the orthogonality
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de8694c6dce8c18db352012382c958e1
https://doi.org/10.1134/s096554251912011x
https://doi.org/10.1134/s096554251912011x
Publikováno v:
INTERNATIONAL UZBEKISTAN-MALAYSIA CONFERENCE ON “COMPUTATIONAL MODELS AND TECHNOLOGIES (CMT2020)”: CMT2020.
The solvability of one class of Neumann-type problems for non homogeneous polyharmonic equation in the unit ball is investigated. It is established that the set of necessary solvability conditions of the problem obtained earlier is also a set of suff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8196d3e46a233d1f17c4f7dafc82147d
https://doi.org/10.1063/5.0057206
https://doi.org/10.1063/5.0057206
Publikováno v:
Topology and its Applications. 230:1-15
In this paper, we study the deformation of triangle groups of type ( 3 , n , ∞ ) determined by three R -circles R 0 , R 1 , R 2 with only rotational symmetry, which generalizes the problem studied by Falbel and Parker in [4] .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2001c243752b6dbd14a554f5bb82263e
https://doi.org/10.1016/j.topol.2017.08.001
https://doi.org/10.1016/j.topol.2017.08.001
Publikováno v:
International Journal of Mathematical Education in Science and Technology. 48:782-793
Students use GeoGebra to explore the mathematical relations among different radii of circles in a triangle (circumcircle, incircle, excircles) and the sides and other segments in the triangle. The more formal mathematical development of the relations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63a67832ce126bea118c5c141ef054b8
https://doi.org/10.1080/0020739x.2016.1276227
https://doi.org/10.1080/0020739x.2016.1276227