Combinatorial optimization | Constraint programming

Symmetry-breaking constraints

In the field of mathematics called combinatorial optimization, the method of symmetry-breaking constraints can be used to take advantage of symmetries in many constraint satisfaction and optimization problems, by adding constraints that eliminate symmetries and reduce the search space size. Symmetries in a combinatorial problem increase the size of the search space and therefore, time is wasted in visiting new solutions which are symmetric to the already visited solutions. The solution time of a combinatorial problem can be reduced by adding new constraints, referred as symmetry breaking constraints, such that some of the symmetric solutions are eliminated from the search space while preserving the existence of at least one solution. Symmetry is common in many real-life combinatorial problems. For example, certain vehicles in the vehicle routing problem might be identical. For a valid routing plan, every permutation of such identical vehicles yields another valid routing plan with the same objective function value. (Wikipedia).

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Computing Limits from a Graph with Infinities

In this video I do an example of computing limits from a graph with infinities.

From playlist Limits

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This video covers the laws of limits and how we use them to evaluate a limit. These laws are especially handy for continuous functions. More theorems about limits are introduced in later videos. For more videos visit http://www.mysecretmathtutor.com

From playlist Calculus

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Today we talk about Limit Laws. We go through some very fundamental properties of limits that are required to understand how some very difficult limits are solved. Visit my website: http://bit.ly/1zBPlvm Subscribe on YouTube: http://bit.ly/1vWiRxW Hello, welcome to TheTrevTutor. I'm here

From playlist Calculus 1

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In this video we work out the limit of (x + 2)/(x^3 + 8) as x approaches -2. We do this by factoring the denominator with the sum of cubes by using the sum of cubes formula.Then we can cancel and evaluate the limit. Another way to do this problem is to use something called L'Hopital's rule

From playlist Limits

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Determining Limits

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From playlist Limits

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This video covers the properties of limits and verifies them graphically.

From playlist Limits

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The ε-δ definition of limits is infamous among calculus students for being confusing to understand and cumbersome to use. In this video I show what is the geometrical interpretation of that definition and give an example of how it is actually used in practice connecting the steps of the re

From playlist Summer of Math Exposition 2 videos

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From playlist Life Science Math: Limits in calculus

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From playlist Continuity Using Limits

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From playlist Virtual Conference

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Axion DM (Lecture 3) by David Marsh

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From playlist Less Travelled Path of Dark Matter: Axions and Primordial Black Holes (Online)

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From playlist 2019 Theory Winter School

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From playlist Hydrodynamics and fluctuations - microscopic approaches in condensed matter systems (ONLINE) 2021

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New Approaches to the Hierarchy Problem III - Nathaniel Craig

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From playlist PiTP 2017

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From playlist Probability and Statistics

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Chiral Lattice Theories from Staggered Fermions by Simon Catterall

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From playlist Nonperturbative and Numerical Approaches to Quantum Gravity, String Theory and Holography (Online)

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Dynamical Constraints on RG Flows and Cosmology - Tom Hartman

Monday, October 28, 2019 High Energy Theory Seminar “Dynamical Constraints on RG Flows and Cosmology” I will discuss time-dependent probes of the renormalization group, and derive new constraints that govern the spread of local operators in holographic theories. The same methods lead to s

From playlist IAS High Energy Theory Seminar

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Quantum spin liquids in pyrochlore magnets: a functional renormalization group by Yasir Iqbal

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From playlist Novel Phases of Quantum Matter 2019

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Calculus 2.3 Calculating Limits Using the Limit Laws

My notes are available at http://asherbroberts.com/ (so you can write along with me). Calculus: Early Transcendentals 8th Edition by James Stewart

From playlist Calculus

Related pages

Combinatorial optimization | Constraint satisfaction | Vehicle routing problem | Symmetry