Add to ORKGIn Issue-I-2 of At Right Angles we had presented an account of Viviani’s theorem, proved it using vector algebra, and found that the proof gave rise to a corollary in an unexpected and yet very natural way. We called it a ‘cousin’ to Viviani’s theorem
In this short note a simple and constructive proof is given for Borsuk's theorem on antipodal p...
Abstract. We give a proof of Floor van Lamoen’s theorem and its converse on the circumcenters of the...
Omont Henri. Une conjecture du XIIe siècle sur l'origine de l'encre. In: Bibliothèque de l'école des...
Readers of this magazine may recall that in the December 2012 issue we dwelt on Viviani’s theorem a...
‘‘ I think it is said that Gauss had ten different proofs for the law of quadratic reciprocity. Any...
By a known case of the Jacobian conjecture, we give a simple elementary proof of the two dimensional...
Knowledge about plane geometry and trianglesLet ABC be an equilateral triangle and let P be a point ...
In this paper, we show that the derivative of the genus-1 Virasoro conjecture for Gromov-Witten inva...
AbstractThis paper traces briefly the discovery of the Pythagorean theorem and the contradictory vie...
We show in this article how Girard Desargues, in his well known text on conics, the \textit{Brouillo...
This paper investigates whether it is reasonable to bestow credit to one person or group for the fam...
In these paragraphs one presents three generalizations of the famous theorem of Ceva, which states: ...
Abstract. We give an overview of the development on work on Poincaré’s con-jecture in the first half...
The main cases of interest for physical applications of the generalized Stokes' theorem are visualiz...
Abstract In this paper, we give new conditions under which the Cîrtoaje’s conjecture is also valid. ...
In this short note a simple and constructive proof is given for Borsuk's theorem on antipodal p...
Abstract. We give a proof of Floor van Lamoen’s theorem and its converse on the circumcenters of the...
Omont Henri. Une conjecture du XIIe siècle sur l'origine de l'encre. In: Bibliothèque de l'école des...
Readers of this magazine may recall that in the December 2012 issue we dwelt on Viviani’s theorem a...
‘‘ I think it is said that Gauss had ten different proofs for the law of quadratic reciprocity. Any...
By a known case of the Jacobian conjecture, we give a simple elementary proof of the two dimensional...
Knowledge about plane geometry and trianglesLet ABC be an equilateral triangle and let P be a point ...
In this paper, we show that the derivative of the genus-1 Virasoro conjecture for Gromov-Witten inva...
AbstractThis paper traces briefly the discovery of the Pythagorean theorem and the contradictory vie...
We show in this article how Girard Desargues, in his well known text on conics, the \textit{Brouillo...
This paper investigates whether it is reasonable to bestow credit to one person or group for the fam...
In these paragraphs one presents three generalizations of the famous theorem of Ceva, which states: ...
Abstract. We give an overview of the development on work on Poincaré’s con-jecture in the first half...
The main cases of interest for physical applications of the generalized Stokes' theorem are visualiz...
Abstract In this paper, we give new conditions under which the Cîrtoaje’s conjecture is also valid. ...
In this short note a simple and constructive proof is given for Borsuk's theorem on antipodal p...
Abstract. We give a proof of Floor van Lamoen’s theorem and its converse on the circumcenters of the...
Omont Henri. Une conjecture du XIIe siècle sur l'origine de l'encre. In: Bibliothèque de l'école des...