Model theory

Ziegler spectrum

In mathematics, the (right) Ziegler spectrum of a ring R is a topological space whose points are (isomorphism classes of) indecomposable pure-injective right R-modules. Its closed subsets correspond to theories of modules closed under arbitrary products and direct summands. Ziegler spectra are named after Martin Ziegler, who first defined and studied them in 1984. (Wikipedia).

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Hitler gets a Haircut.

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Designing a PID Controller Using the Ziegler-Nichols Method

In this video we discuss how to use the Ziegler-Nichols method to choose PID controller gains. In addition to discussing the method and providing a Matlab implementation of the procedure, we demonstrate the effectiveness of the resulting controller on a real system. Topics and time stamp

From playlist Control Theory

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From playlist The BuShou of HanZi

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Günter Ziegler Seeks God’s Perfect Math Proofs

Günter Ziegler describes one of the most famous and beautiful proofs in "Proofs From THE BOOK," a book he co-authored with Martin Aigner. Read the full Q&A here: https://www.quantamagazine.org/gunter-ziegler-and-martin-aigner-seek-gods-perfect-math-proofs-20180319/ Video by Aubrey Wade for

From playlist Inside the Mind of a Scientist

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From playlist The BuShou of HanZi

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15. Metals and Catalysis in Alkene Oxidation, Hydrogenation, Metathesis, and Polymerization

Freshman Organic Chemistry II (CHEM 125B) Alkenes may be oxidized to diols by permanganate or by OsO4 catalysis. Metal catalysts provide orbitals that allow simultaneous formation of two bonds from metal to alkene or H2. Coupling such oxidative additions to reductive eliminations, provi

From playlist Freshman Organic Chemistry II with Michael McBride

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PID Control with Arduino: Lecture 7 PID Tuning, Ziegler-Nichols Method (see description)

Please check out my latest applied controls tutorial course called "Digital Feedback Control with Arduino" on Udemy. Using the link the FREE coupon will be applied. Offer lasts till October 8th! https://www.udemy.com/course/digital-feedback-control-tutorial-with-arduino/?couponCode=PADEAPR

From playlist Robotics

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A PID Tuning Guide | Understanding PID Control, Part 4

It can be difficult to navigate all the resources that promise to explain the secrets of PID tuning. Some proclaim that PID tuning is an art that requires finesse and experience, while others are adamant that tuning requires a few rigid rules. Why is there such a vast difference? It is b

From playlist Understanding PID Control

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Ruelle resonances for pseudo-Anosov maps – Sébastien Gouëzel – ICM2018

Dynamical Systems and Ordinary Differential Equations Invited Lecture 9.6 Ruelle resonances for pseudo-Anosov maps Sébastien Gouëzel Abstract: The Ruelle resonances of a dynamical system are spectral characteristics of a system, describing the precise asymptotics of correlations. While t

From playlist Dynamical Systems and ODE

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A Zig-Zag Recipe in Jewish Scriptures - Omer Reingol

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From playlist Mathematics

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From playlist News | National Geographic

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Geometric Representation of Structured Extensions in Ergodic Theory - Henrik Kreidler

Special Year Research Seminar Topic: Geometric Representation of Structured Extensions in Ergodic Theory Speaker: Henrik Kreidler Affiliation: Bergische Universität Wuppertal Date: March 14, 2023 The Mackey-Zimmer representation theorem is a key structural result from ergodic theory: Eve

From playlist Mathematics

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17. Alkynes. Conjugation in Allylic Intermediates and Dienes

Freshman Organic Chemistry II (CHEM 125B) Because of their unusual acidity very strong base makes it possible to isomerize an internal acetylene to the less stable terminal isomer. Many chemical reactions may be understood in terms of localized bonds, but the special stability of conjug

From playlist Freshman Organic Chemistry II with Michael McBride

Related pages

Sober space | Compact space | Topological space | Hausdorff space | Kolmogorov space | Mathematics | Indecomposable module | Ring (mathematics) | Grothendieck category | Closed set