Recent content by dustball
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Algebra Math texts that make you fall in love all over again
Try "Mathematical methods of classical mechanics," "Ordinary differential equations" and "Partial differential equations" by V.I. Arnold. "Analysis by its history" by Hairer and Wanner is very nice too. Enjoy :-)- dustball
- Post #30
- Forum: Science and Math Textbooks
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Classical Good book for Lagrangian and Hamiltonian Mechanics
Walter Greiner, Classical Mechanics.- dustball
- Post #18
- Forum: Science and Math Textbooks
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Classical Good book for Lagrangian and Hamiltonian Mechanics
Try V.I. Arnold, Mathematical Methods of Classical Mechanics, or Abraham and Marsden, Foundations of Mechnics.- dustball
- Post #17
- Forum: Science and Math Textbooks
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Graduate Quantum challenge: mathematical paradoxes
In challenge 1 none of the operators involved have a finite trace.- dustball
- Post #14
- Forum: Quantum Physics
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High School What does the derivative of a function at a point describe?
But endeed, the full power of classical analysis and limit theory is not needed to understand differentiation. It can be done on a more elementary level. Unfortunately not too many people are aware of it. -
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High School What does the derivative of a function at a point describe?
Sorry, this definition does not work, consider the derivative of ## x^3 ## at ## x=0 ## or ## x^2sin(x^{-2}) ## (taken to be 0 at 0) at ## x=0 ##. -
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Graduate What math do I need to know to understand General Relativity
For SR try The Feynman lectures, vol. 1.- dustball
- Post #33
- Forum: Differential Geometry
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Graduate What math do I need to know to understand General Relativity
As the general math background for physics, V.I. Arnold's Mathematical Methods of Classical Mechanics is the best.- dustball
- Post #31
- Forum: Differential Geometry
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Graduate What math do I need to know to understand General Relativity
And there is a great book "Gravitation" by Mister, Thorne and Wheeler that explains all the math along with GR, fun to read, try it.- dustball
- Post #30
- Forum: Differential Geometry
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Graduate What math do I need to know to understand General Relativity
Pick up the book "The Principle of Relativity" and try to read the Einstein's paper on GR. You will see the math you need. Good luck.- dustball
- Post #28
- Forum: Differential Geometry
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Does G(x) = x^2 - e^{1/(1+x)} Assume a Value of 0 for 0 < x < 2?
Can you see whether G'(x) is positive or negative for positive x?- dustball
- Post #6
- Forum: Calculus and Beyond Homework Help
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Continuously Differentiable Piecewise Function?
Looks like your teacher is wrong, the function is continuously differentiable.- dustball
- Post #3
- Forum: Calculus and Beyond Homework Help
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Graduate Why Pauli's Exclusion Principle?
http://www.arxiv.org/abs/hep-th/0008072 http://www.arxiv.org/abs/quant-ph/0208151 Type in spin statistics into the title window for a lot more, search both physics and math, enjoy.- dustball
- Post #46
- Forum: Quantum Physics
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Graduate Why Pauli's Exclusion Principle?
There are some other nice articles on the subject in arxiv.org. I especially liked the ones by Robert Oeckl and by Bernd Kuckert. It looks like a lot of confusion is created by forgetting that the individual particles don't exist, the n-particle states live on the n-configuration space...- dustball
- Post #44
- Forum: Quantum Physics