Theorems in computational complexity theory | Constraint programming
In computational complexity theory, a branch of computer science, Schaefer's dichotomy theorem states necessary and sufficient conditions under which a finite set S of relations over the Boolean domain yields polynomial-time or NP-complete problems when the relations of S are used to constrain some of the propositional variables.It is called a dichotomy theorem because the complexity of the problem defined by S is either in P or NP-complete as opposed to one of the classes of intermediate complexity that is known to exist (assuming P ≠ NP) by Ladner's theorem. Special cases of Schaefer's dichotomy theorem include the NP-completeness of SAT (the Boolean satisfiability problem) and its two popular variants 1-in-3 SAT and not-all-equal 3SAT (often denoted by NAE-3SAT). In fact, for these two variants of SAT, Schaefer's dichotomy theorem shows that their monotone versions (where negations of variables are not allowed) are also NP-complete. (Wikipedia).
A Complete Dichotomy Rises from the Capture of Vanishing Signatures - Jin-Yi Cai
Jin-Yi Cai University of Wisconsin November 19, 2012 Holant Problems are a broad framework to describe counting problems. The framework generalizes counting Constraint Satisfaction Problems and partition functions of Graph Homomorphisms. We prove a complexity dichotomy theorem for Holant
From playlist Mathematics
Dealing with Schrodinger's Equation - The Hamiltonian
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From playlist Quantum Mechanics
Physics - Chapt. 66 Quantum Mechanics (8 of 9) Schrodinger's Equation
Visit http://ilectureonline.com for more math and science lectures! In this video I will introduce Schrodinger and explain his partial differential equation describing how the quantum state changes with time. Next video in the series can be seen at: https://youtu.be/lptfhi_cQLc
From playlist PHYSICS 66 - QUANTUM MECHANICS
The Distributive Property (L2.4)
This video defines the distributive property and provides several examples of how to multiply using the distributive property. Video content created Jenifer Bohart, William Meacham, Judy Sutor, and Donna Guhse from SCC (CC-BY 4.0)
From playlist The Distributive Property and Simplifying Algebraic Expressions
Physics - Ch 66 Ch 4 Quantum Mechanics: Schrodinger Eqn (13 of 92) Time & Position Dependencies 2/3
Visit http://ilectureonline.com for more math and science lectures! In this video I will find C=?, of the position part of the Schrodinger's equation by using the time dependent part of Schrodinger's equation, part 2/3. Next video in this series can be seen at: https://youtu.be/1mxipWt-W
From playlist PHYSICS 66.1 QUANTUM MECHANICS - SCHRODINGER EQUATION
On Approximability of CSPs on Satisfiable Instances - Subhash Khot
Computer Science/Discrete Mathematics Seminar I Topic: On Approximability of CSPs on Satisfiable Instances Speaker: Subhash Khot Affiliation: New York University Date: November 22, 2021 Constraint Satisfaction Problems (CSPs) are among the most well-studied problems in Computer Science,
From playlist Mathematics
Separation of variables and the Schrodinger equation
A brief explanation of separation of variables, application to the time-dependent Schrodinger equation, and the solution to the time part. (This lecture is part of a series for a course based on Griffiths' Introduction to Quantum Mechanics. The Full playlist is at http://www.youtube.com/
From playlist Mathematical Physics II - Youtube
Schrodinger's Equation for wave functions in Quantum Physics. My Patreon Page is at https://www.patreon.com/EugeneK
From playlist Physics
Solar System Had a Huge Gap Explaining Why It's So Unique
Good telescope that I've used to learn the basics: https://amzn.to/35r1jAk Get a Wonderful Person shirt: https://teespring.com/stores/whatdamath Alternatively, PayPal donations can be sent here: http://paypal.me/whatdamath Hello and welcome! My name is Anton and in this video, we will tal
From playlist Solar System
Non-negatively Weighted #CSPs: An Effective Complexity Dichotomy - Xi Chen
Xi Chen Columbia University March 28, 2011 We prove a complexity dichotomy theorem for all non-negatively weighted counting Constraint Satisfaction Problems (#CSP). This caps a long series of important results on counting problems including unweighted and weighted graph homomorphisms and t
From playlist Mathematics
Minerva Lectures 2013 - Assaf Naor Talk 2: Dichotomies and universality in metric embeddings
For more information, please see: http://www.math.princeton.edu/events/seminars/minerva-lectures/minerva-lecture-ii-dichotomies-and-universality-metric-embeddings
From playlist Minerva Lectures - Assaf Naor
Physics - Ch 66 Ch 4 Quantum Mechanics: Schrodinger Eqn (12 of 92) Time & Position Dependencies 1/3
Visit http://ilectureonline.com for more math and science lectures! In this video I will separate the time and position dependencies of the Schrodinger's equation, part 1/3. Next video in this series can be seen at: https://youtu.be/djlpmDUtIZY
From playlist PHYSICS 66.1 QUANTUM MECHANICS - SCHRODINGER EQUATION
Reducibility for the Quasi-Periodic Liner Schrodinger and Wave Equations - Lars Hakan Eliasson
Lars Hakan Eliasson University of Paris VI; Institute for Advanced Study February 21, 2012 We shall discuss reducibility of these equations on the torus with a small potential that depends quasi-periodically on time. Reducibility amounts to "reduce” the equation to a time-independent linea
From playlist Mathematics
Ben Green - University of Oxford Classical Fourier analysis has found many uses in additive number theory. However, while it is well-adapted to some pro - blems, it is unable to handle others. For example, if one has a set A, and one wishes to know how many 3-term arithmetic progressions
From playlist Ben Green - Nilsequences
Mean action of periodic orbits of area-preserving annulus diffeomorphisms - Morgan Weiler
Symplectic Dynamics/Geometry Seminar Topic: Mean action of periodic orbits of area-preserving annulus diffeomorphisms Speaker: Morgan Weiler Affiliation: University of California, Berkeley Date: December 3, 2018 For more video please visit http://video.ias.edu
From playlist Mathematics
SHM - 16/01/15 - Constructivismes en mathématiques - Frédéric Brechenmacher
Frédéric Brechenmacher (LinX, École polytechnique), « Effectivité et généralité dans la construction des grandeurs algébriques de Kronecker »
From playlist Les constructivismes mathématiques - Séminaire d'Histoire des Mathématiques
Svetlana ROUDENKO - Going beyond the threshold...
Svetlana ROUDENKO - Going beyond the threshold: blow-up and scattering in the focusing NLS equation
From playlist Trimestre "Ondes Non linéaires" - Summer school
Structure vs Randomness in Complexity Theory - Rahul Santhanam
Computer Science/Discrete Mathematics Seminar I Topic: Structure vs Randomness in Complexity Theory Speaker: Rahul Santhanam Affiliation: University of Oxford Date: April 20, 2020 For more video please visit http://video.ias.edu
From playlist Mathematics
On the long-term dynamics of nonlinear dispersive evolution equations - Wilhelm Schlag
Analysis Seminar Topic: On the long-term dynamics of nonlinear dispersive evolution equations Speaker: Wilhelm Schlag Affiliation: University of Chicago Visiting Professor, School of Mathematics Date: Febuary 14, 2018 For more videos, please visit http://video.ias.edu
From playlist Mathematics