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Symmetries in Steinhaus Triangles and in Generalized Pascal Triangles

open access: yesIntegers, 2011
AbstractWe give explicit formulae for obtaining the binary sequences which produce Steinhaus triangles and generalized Pascal triangles with rotational and dihedral symmetries.
Josep M Brunat, Montserrat Maureso
exaly   +6 more sources

Some chemical indices related to the number of triangles [PDF]

open access: yesTransactions on Combinatorics, 2023
Many chemical indices have been invented in theoretical chemistry, such as the Zagreb index, the Lanzhou index, the forgotten index, the Estrada index etc.
Mihrigul Wali
doaj   +1 more source

STUDENTS’ GEOMETRIC THINKING ON TRIANGLES: MUCH IMPROVEMENT IS NEEDED

open access: yesInfinity, 2021
A look into students’ misconceptions help explain the very low geometric thinking and may assist teachers in correcting errors to aid students in reaching a higher van Hiele geometric thinking level.
Joanne Ramirez Casanova   +2 more
doaj   +1 more source

THE CONCEPT OF THE «GREAT CASPIAN» IN THE GEOPOLITICAL CONTEXT

open access: yesСовременная наука и инновации, 2022
The Caspian issues are considered in various aspects by numerous domestic and foreign researchers. The region is gaining particular importance in connection with the signing of the Convention on the Legal Status of the Caspian Sea (dated 12.08.2018 ...
K. A. Markelov
doaj   +1 more source

Some Pascal’s like triangles [PDF]

open access: yesریاضی و جامعه, 2023
. In this article, we delve into the fascinating world of numerical triangles similar to Khayyam-Pascal triangle. Our focus is on triangles that are comprised of natural numbers.
Seyed Mohammad Amin Khatami   +1 more
doaj   +1 more source

Hamilton Triangle of a Triangle in the Isotropic Plane [PDF]

open access: yesMathematica Pannonica, 2022
In this paper we introduce the concept of the Hamilton triangle of a given triangle in an isotropic plane and investigate a number of important properties of this concept. We prove that the Hamilton triangle is homological with the observed triangle and with its contact and complementary triangles. We also consider some interesting statements about the
Kolar Begović, Zdenka   +1 more
openaire   +1 more source

PUBLISHING AND STUDYING OF A GROUP OF STIRRUPS PRESERVED IN THE GAYER-ANDERSON MUSEUM IN CAIRO WITH ITS COMPARISON WITH MODELS FROM PAINTINGS OF THE OTTOMAN MANUSCRIPTS [PDF]

open access: yesJournal of the General Union of Arab Archaeologists, 2017
( En ) This study highlighted a group of masterpieces which are known as “stirrups” preserved in the Gayer-Anderson Museum in Cairo. The study has clarified its function which it is the helping of the persons in riding the horse, and the horsemen’s ...
Amin Abd Allah Rashaidy
doaj   +1 more source

Pseudo-Heronian triangles whose squares of the lengths of one or two sides are prime numbers

open access: yesLietuvos Matematikos Rinkinys, 2021
The authors introduced the concept of a pseudo-Heron triangle, such that squares of sides are integers, and the area is an integer multiplied by $2$. The article investigates the case of pseudo-Heron triangles such that the squares of the two sides of ...
Edmundas Mazėtis   +1 more
doaj   +1 more source

Strategic Triangles and Balancing in World Politics

open access: yesКонтуры глобальных трансформаций: политика, экономика, право, 2021
Trilateral diplomacy is a common format of interaction in international relations, which forms various configurations of the balance of power within the framework of triangles. The concept of a “triangle” is characterized by ambivalence, has a variety of
D. A. Degterev, M. S. Ramich
doaj   +1 more source

Triangle Solitaire

open access: yes, 2023
The solitaire of independence is a groupoid action resembling the classical 15-puzzle, which gives information about independent sets of coordinates in a totally extremally permutive subshift. We study the solitaire with the triangle shape, which corresponds to the spacetime diagrams of bipermutive cellular automata with radius 1/2.
Ville Salo, Juliette Schabanel
openaire   +3 more sources

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