GeoDom

martes, 11 de agosto de 2026

A Problem by Ivan Pavlov

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This problem was originally posted on Facebook . Problem (Ivan Pavlov) . Let \(ABC\) be a triangle with incenter \(I\). Let \(A_1,B_1,C_1\) ...
jueves, 23 de julio de 2026

Lobachevsky’s Angle of Parallelism Inside the USM

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When developing the Unified Substitution Method (USM) for integration (see arXiv:2505.03754 ), the primary goal was methodological: to crea...
martes, 14 de julio de 2026

Radical Integrals Made Easier: Five Families That Collapse into Laurent Polynomials

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Introduction The standard objective of a substitution involving a quadratic radical is rationalization. We replace the radical by a rational...

En memoria del Dr. Paolo Lugano Poletti

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No llores porque ya se terminó, sonríe porque sucedió. ~ Gabriel García Márquez. En 2013 acababa de graduarme de ingeniero civil. Como les o...
miércoles, 8 de julio de 2026

Benchmarking the USM Against Mathematica Integrate, Part 3

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This report compares the Unified Substitution Method (USM) with Mathematica’s native `Integrate` function across five families of integral...
miércoles, 10 de junio de 2026

Un problema de Igor Volzhin

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Problema . Sea $\Gamma$ una circunferencia de centro $O$ y radio $R$. Desde un punto exterior $P$ se trazan las dos tangentes a $\Gamma$, qu...
martes, 5 de mayo de 2026

Constructing an Equal-Area Triangle from a Quadrilateral

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Claim . Let $ABCD$ be a convex quadrilateral, and let $O$ be an arbitrary point in the plane. Let $M$ and $N$ be the midpoints of $BO$ and ...
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Hi, here you can find solved and open geometry problems in English and Spanish (and other stuffs).

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Emmanuel José García
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