In nine-dimensional geometry, a rectified 9-cube is a convex uniform 9-polytope, being a rectification of the regular 9-cube. There are 9 rectifications of the 9-cube. The zeroth is the 9-cube itself, and the 8th is the dual 9-orthoplex. Vertices of the rectified 9-cube are located at the edge-centers of the 9-orthoplex. Vertices of the birectified 9-cube are located in the square face centers of the 9-cube. Vertices of the trirectified 9-orthoplex are located in the cube cell centers of the 9-cube. Vertices of the quadrirectified 9-cube are located in the tesseract centers of the 9-cube. These polytopes are part of a family 511 uniform 9-polytopes with BC9 symmetry. (Wikipedia).
This shows a 3d print of a mathematical sculpture I produced using shapeways.com. This model is available at http://shpws.me/2Uh3
From playlist 3D printing
Ex 2: Factor a Sum or Difference of Cubes
This video provides and example of how to factor a sum or difference of cubes with common factors. Library: http://www.mathispower4u.com Search: http://www.mathispower4u.wordpress.com
From playlist Factoring a Sum or Difference of Cubes
Calculating the side of a square that is resting inside a cube.
From playlist Middle School - Worked Examples
Model Subtraction of Two Digit Whole Numbers Using Base Ten Blocks
This video explains subtraction of two digit whole numbers by using base ten blocks. Site: http://mathispower4u.com
From playlist Addition and Subtraction of Whole Numbers
Basic Whole number Subtraction Using the Number Line
The video explains how to model basic whole number subtraction using the number line.
From playlist Addition and Subtraction of Whole Numbers
This shows a 3d print of a mathematical sculpture I produced using shapeways.com. This model is available at http://shpws.me/q0PF.
From playlist 3D printing
Higher order rectifiability and Reifenberg parametrizations - Silvia Ghinassi
Analysis Seminar Topic: Higher order rectifiability and Reifenberg parametrizations Speaker: Silvia Ghinassi Affiliation: Member, School of Mathematics Date: March 9, 2020 For more video please visit http://video.ias.edu
From playlist Mathematics
Elliptic measures and the geometry of domains - Zihui Zhao
Analysis Seminar Topic: Elliptic measures and the geometry of domains Speaker: Zihui Zhao Affiliation: Member, School of Mathematics Date: February 14, 2019 For more video please visit http://video.ias.edu
From playlist Mathematics
Examples: Subtraction of Decimals
This video provides 4 examples of subtracting decimals. Complete video list: http://www.mathispower4u.com
From playlist Adding and Subtracting Decimals
Robert YOUNG - Quantifying nonorientability and filling multiples of embedded curves
Abstract: https://indico.math.cnrs.fr/event/2432/material/17/0.pdf
From playlist Riemannian Geometry Past, Present and Future: an homage to Marcel Berger
p- groups - 1 by Heiko Dietrich
DATE & TIME 05 November 2016 to 14 November 2016 VENUE Ramanujan Lecture Hall, ICTS Bangalore Computational techniques are of great help in dealing with substantial, otherwise intractable examples, possibly leading to further structural insights and the detection of patterns in many abstra
From playlist Group Theory and Computational Methods
Quantifying nonorientability and filling multiples of embedded curves - Robert Young
Analysis Seminar Topic: Quantifying nonorientability and filling multiples of embedded curves Speaker: Robert Young Affiliation: New York University; von Neumann Fellow, School of Mathematics Date: October 5, 2020 For more video please visit http://video.ias.edu
From playlist Mathematics
This shows a 3d print of a mathematical sculpture I produced using shapeways.com. This model is available at http://shpws.me/L5R
From playlist 3D printing
Fourth Dimension rotation of 4D spheres, tetrahedrons, and cubes
Rotation of 4D tetrahedrons, tesseracts, and spheres. My Patreon account: https://www.patreon.com/EugeneK
From playlist Physics
Level Sets of Weakly Lipschitz Functions - Bobby Wilson
Seminar in Analysis and Geometry Topic: Level Sets of Weakly Lipschitz Functions Speaker: Bobby Wilson Affiliation: University of Washington Date: March 22, 2022 We will discuss the regularity properties and size of generic level sets of functions that satisfy weak local Lipschitz condi
From playlist Mathematics
J.-M. Martell - A minicourse on Harmonic measure and Rectifiability (Part 1)
Solving the Dirichlet boundary value problem for an elliptic operator amounts to study the good properties of the associated elliptic measure. In the context of domains having an Ahlfors regular boundary and satisfying theso-called interior corkscrew and Harnack chain conditions (these ar
From playlist Rencontres du GDR AFHP 2019
Xavier Tolsa: The weak-A∞ condition for harmonic measure
Abstract: The weak-A∞ condition is a variant of the usual A∞ condition which does not require any doubling assumption on the weights. A few years ago Hofmann and Le showed that, for an open set Ω⊂ℝn+1 with n-AD-regular boundary, the BMO-solvability of the Dirichlet problem for the Laplace
From playlist Analysis and its Applications
Frédéric Mangolte: Algebraic models of the line in the real affine plane
Abstract: We study the following real version of the famous Abhyankar-Moh Theorem: Which real rational map from the affine line to the affine plane, whose real part is a non-singular real closed embedding of ℝ into ℝ^2, is equivalent, up to a birational diffeomorphism of the plane, to the
From playlist Algebraic and Complex Geometry
How Many Faces, Edges And Vertices Does A Cube Have?
How Many Faces, Edges And Vertices Does A Cube Have? Here we’ll look at how to work out the faces, edges and vertices of a cube. We’ll start by counting the faces, these are the flat surfaces that make the cube. A cube has 6 faces altogether - all square in shape. Next we’ll work out ho
From playlist Faces, edges and Vertices of 3D shapes