Rigidity matroid

Louis Theran: Rigidity of Random Graphs in Higher Dimensions

I will discuss rigidity properties of binomial random graphs G(n,p(n)) in fixed dimension d and some related problems in low-rank matrix completion. The threshold for rigidity is p(n) = Θ(log n / n), which is within a multiplicative constant of optimal. This talk is based on joint work wi

From playlist HIM Lectures 2015

Center of Mass & Center of Rigidity | Reinforced Concrete Design

http://goo.gl/nmipcn for more FREE video tutorials covering Concrete Structural Design The objectives of this video are to briefly discuss about the center of mass and center of rigidity by understanding what their means as well as to talks about combination of center of mass and center o

From playlist SpoonFeedMe: Concrete Structures

Physics - Mechanics: Torsion (11 of 14) Torsion and a Hollow Tube

Visit http://ilectureonline.com for more math and science lectures! In this video I will derive the equation of torque=? of the torsion of a hollow tube. Next video in this series can be found at: https://youtu.be/mQ-wseAfAlc

From playlist PHYSICS 16.6 TORSION

Physics - Mechanics: Torsion (2 of 14) What is Torsional Constant?

Visit http://ilectureonline.com for more math and science lectures! In this video I will explain what is torsional constant or the “second momentum of area”. Next video in this series can be found at: https://youtu.be/Mr29GDA0jLE

From playlist PHYSICS 16.6 TORSION

Gyula Pap: Linear matroid matching in the oracle model

Gyula Pap: Linear matroid matching in the oracle model Linear matroid matching is understood as a special case of matroid matching when the matroid is given with a matrix representation. However, for certain examples of linear matroids, the matrix representation is not given, and actuall

From playlist HIM Lectures 2015

Yusuke Kobayashi: A weighted linear matroid parity algorithm

The lecture was held within the framework of the follow-up workshop to the Hausdorff Trimester Program: Combinatorial Optimization. Abstract: The matroid parity (or matroid matching) problem, introduced as a common generalization of matching and matroid intersection problems, is so gener

From playlist Follow-Up-Workshop "Combinatorial Optimization"

How to Make Amazing Tensegrity Structure - Anti-Gravity Structure

We made a sculpture out of wood batten based on the principle of tensional integrity (tensegrity for short), where all the strings are under continuous tension. The result is the impression that the sculpture levitates. Tensegrity is a design principle that applies when a discontinuous se

From playlist Home Science Videos - Cool Science Experiments

An Introduction to Stress and Strain

This video is an introduction to stress and strain, which are fundamental concepts that are used to describe how an object responds to externally applied loads. Stress is a measure of the distribution of internal forces that develop within a body to resist these applied loads. There are

From playlist Mechanics of Materials / Strength of Materials

Teaching Rigid Body Dynamics, Part 6: Summary of Computational Thinking Implementation

See a quick recap of the key features in MATLAB® that support a computational thinking approach when teaching rigid body dynamics. Get a free product Trial: https://goo.gl/ZHFb5u Learn more about MATLAB: https://goo.gl/8QV7ZZ Learn more about Simulink: https://goo.gl/nqnbLe See What's new

From playlist Teaching Rigid Body Dynamics

Joseph Bonin: Delta-matroids as subsystems of sequences of Higgs lifts

Abstract: Delta-matroids generalize matroids. In a delta-matroid, the counterparts of bases, which are called feasible sets, can have different sizes, but they satisfy a similar exchange property in which symmetric differences replace set differences. One way to get a delta-matroid is to t

From playlist Combinatorics

Nonlinear algebra, Lecture 13: "Polytopes and Matroids ", by Mateusz Michalek

This is the thirteenth lecture in the IMPRS Ringvorlesung, the advanced graduate course at the Max Planck Institute for Mathematics in the Sciences.

From playlist IMPRS Ringvorlesung - Introduction to Nonlinear Algebra

Victor Chepoi: Simple connectivity, local to global, and matroids

Victor Chepoi: Simple connectivity, local-to-global, and matroids A basis graph of a matroid M is the graph G(M) having the bases of M as the vertex-set and the pairs of bases differing by an elementary exchange as edges. Basis graphs of matroids have been characterized by S.B. Maurer, J.

From playlist HIM Lectures 2015

Anna De Mier: Approximating clutters with matroids

Abstract: There are several clutters (antichains of sets) that can be associated with a matroid, as the clutter of circuits, the clutter of bases or the clutter of hyperplanes. We study the following question: given an arbitrary clutter Λ, which are the matroidal clutters that are closest

From playlist Combinatorics

Zoltán Szigeti: Packing of arborescences with matroid constraints via matroid intersection

The lecture was held within the framework of the follow-up workshop to the Hausdorff Trimester Program: Combinatorial Optimization. Abstract: Edmonds characterized digraphs having a packing of k spanning arborescences in terms of connectivity and later in terms of matroid intersection. D

From playlist Follow-Up-Workshop "Combinatorial Optimization"

Michael Falk, Research talk - 9 February 2015

http://www.crm.sns.it/course/4392/ Michael Falk (Northern Arizona University) - Research talk We recall the application of resonance varieties in distinguishing homotopy types of complements of complex line arrangements, and illustrate a new application whereby one reconstructs the underl

From playlist Algebraic topology, geometric and combinatorial group theory - 2015

Sahil Singla: Online Matroid Intersection Beating Half for Random Arrival

We study a variant of the online bipartite matching problem that we call the online matroid intersection problem. For two matroids M1 and M2 defined on the same ground set E, the problem is to design an algorithm that constructs the largest common independent set in an online fashion. At e

From playlist HIM Lectures 2015

Lesson 5.5: Variable Number of Arguments

A video segment from the Coursera MOOC on introductory computer programming with MATLAB by Vanderbilt. Lead instructor: Mike Fitzpatrick. Check out the companion website and textbook: http://cs103.net

From playlist Vanderbilt: Introduction to Computer Programming with MATLAB (CosmoLearning Computer Programming)

Kevin Hendrey - Obstructions to bounded branch-depth in matroids (CMSA Combinatorics Seminar)

Kevin Hendrey (Institute for Basic Science) presents “Obstructions to bounded branch-depth in matroids”, 24 November 2020 (CMSA Combinatorics Seminar).

From playlist CMSA Combinatorics Seminar

Strongly log concave polynomials...Bases of Matroids - Shayan Oveis Gharan

More videos on http://video.ias.edu

From playlist Mathematics