Questions tagged [mathematical-physics]
For questions regarding the mathematical aspects of physics.
2
votes
1answer
103 views
Origin of the Heaviside function?
I have tried to find the actual origin of the Heaviside unit step function and could not. I've searched and searched, read one complete biography of Oliver Heaviside, skimmed another, but nowhere can ...
0
votes
2answers
193 views
Who used the symbol $S_n$ for “rotation reflection” as a symmetry operation?
I am looking for the origin of the symbol $S_n$ used by chemists to denote the symmetry operation consisting of a $\smash{\frac{2\pi}n}$ rotation ($C_n$) about an axis and a reflection in a plane ...
0
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1answer
113 views
Who first solved the two-body problem in 3D?
Who first solved the two-body problem in 3-dimensions? Was it Laplace?
1
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0answers
80 views
Reference for Math-Physics history book
I am looking for a book on the history of mathematics that would also serve as a book on the history of physics. In the sense that the history of math is developed along with the developments in ...
4
votes
3answers
175 views
The Greeks did not discover “a single scientific law”
The title is drawn from a sentence in a Jim Holt article,
"The Dangerous Idea of the Infinitesimal,"
now a chapter in his book collection.1
I found this a striking claim, and perhaps true, as
the ...
0
votes
1answer
103 views
Why did Noether's theorem take so long to show up?
Obviously like they say hindsight is 20/20, but it seems to me that all the ingredients for Noether's theorem were in place more than a hundred years before its publication, and to be honest it is not ...
0
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1answer
111 views
Why was Courant's “Methods of Mathematical Physics” suppressed, by the Germans, during WW2?
In the preface to Methods of Mathematical Physics Richard Courant, the author, wrote that the book was suppressed by the National Socialist rulers(Nazi) of Germany.
Hence, my question. Thanks.
3
votes
1answer
117 views
A Peculiar Quote from an Engineer
The best result of mathematics is to be able to do without it.
The above is a quote by Oliver Heaviside, an electrical engineer and mathematician. What does the quote really mean?
2
votes
1answer
136 views
Did Euler or did D'Alembert incorporate initial conditions into the solution to the 1D wave equation?
My question is: Who is responsible for incorporating the initial conditions into the one dimensional wave equation solution? References or technical information would be appreciated, especially ...
0
votes
1answer
58 views
existed Ph D thesis programs in the past ? which was the first Ph D thesis in math , physics?
where Ph D thesis at those time of Galileo and Newton ?
did newton make a Ph D thesis and Galileo?
due to the poor level of science (before calculus and so on ) were Ph D thesis made in math and ...
0
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0answers
55 views
Why is the angular momentum written as JJ in quantum mechanics?
Why is $\textbf{J}$ called angular momentum operator? Can anyone explain why the expectation value of J is angular momentum?
Here is how $J$ is defined: The rotation operator
$$
U(\alpha)=\exp(-i {\...
5
votes
1answer
183 views
Who originally derived the general force law equation of force between current elements?
Wikipedia credits this to Maxwell. This derivation can be found in Maxwell's Treatise on Electricity and Magnetism vol. 2, part 4, ch. 2 (§§502-527). I went through the derivation and found two self ...
1
vote
0answers
189 views
History of PDE's in the 19th Century 2
This is a follow up to this question: History of PDE's in the 19th Century
The question I have been given to answer is:
The history of partial differential equations in the 19th Century belongs ...
1
vote
2answers
205 views
Math development and under-appreciation of Maxwell's Equations
Freeman Dyson expresses the opinion in his 1972 essay titled "Missed Opportunities" that Maxwell's equations could have played a much bigger role, one that is comparable to classical mechanics, in ...
2
votes
2answers
397 views
History of PDE's in the 19th Century
I've been asked to write an essay on whether the work on PDE's in the 19th century belonged to applied or pure mathematics. I was wondering if anyone knows of any useful sources I could use?
3
votes
2answers
211 views
When Was Kaluza-Klein Theory Appreciated?
As far as I understand, the Kaluza-Klein theory, despite its unprecedentedly profound and beautiful character, had a modest following in its early days. I guess that two of the many reasons might be ...
3
votes
4answers
128 views
Time for big results to become widely recognized in the scientific community
What are some examples of big results in mathematics and or physics that took a long time to be considered groundbreaking? What was the length of time from the original publication to the recognition?
...
4
votes
3answers
254 views
Best books/papers on Newton and his mathematical physics
In your opinion, what are some of the best books/papers on Newton and his work that accurately cover the connections between his geometric proofs in the Principia and his development of the calculus ...
6
votes
2answers
212 views
Notational change with Integrals
A little over 50 years ago I took my first Calculus class and learned the conventional form of an integral as:
$$
\int f(x)\,\, \textrm{d}x
$$
That is, the integral sign (definite or indefinite) ...
2
votes
1answer
76 views
Who wrote down the equations governing gravity in a field language for the first time?
In his paper The search for unity: Notes for a history of quantum field theory [Daedalus 4, 106 (1977)], Steven Weinberg writes:
The first successful classical field theory was based on Newton's ...
1
vote
0answers
39 views
Origin of diagrammatics illustrating the relation between cumulants and moments?
The exponential-log transformation of exponential generating functions (see OEIS A036040 and A127671) relate the classical cumulants to their associated moments.
Who were some of the first to ...
5
votes
1answer
105 views
Who was the first person to describe the turbulence in mathematical terms?
Here I found that:
Sixty years later, Russian mathematician Andrey Kolmogorov furthered
our mathematical understanding of turbulence when he proposed that
energy in a turbulent fluid at length ...
4
votes
1answer
298 views
History of complex analysis
Does anyone know of a good book on the history of imaginary numbers and complex analysis and its role in physics?
6
votes
1answer
185 views
Debate between relationship of philosophy of mathematics and physics
Did there exist and does there still exist a debate over which school of mathematical thought (i.e. formalism, logicism, intuitionism, etc.) had the most affinity or application for physics? In ...
3
votes
1answer
97 views
when did polynomial coefficient matching start for solving equations?
Coefficient matching feels rather natural when solving equations and checking dimensions, however in footnote 2 to "Two alternative derivations of Bridgman's theorem" (Berberan-Santos M N, Pogliani L, ...
4
votes
1answer
205 views
Where in Gauss's works does he derive “Gauss's Law”?
Where in Gauss's works does he derive "Gauss's Law"? Or is "Gauss's Law" named after Gauss for a different reason?
7
votes
5answers
310 views
Were matrix theory and functional analysis well-known to physicists before the invention of matrix mechanics?
Were matrix theory and analysis well-known to physicists circa 1920-1925? Did physicists make extended use of this theory in that period? The question is related to the discussion in How did ...
0
votes
1answer
141 views
Who introduced the Green function method into quantum mechanics?
Its power is amazing. For a Hamiltonian, you define the Green function as
$$G = \frac{1}{\lambda E-H} .$$
Who first come up with this definition? What was the motivation?
3
votes
3answers
450 views
Example of abstract math theory that was later found to be applicable to physical world?
In this video about the Banach-Tarsky paradox the host stipulates that the history is full of examples of abstract mathematical theories that were later found to be applicable to the physical world. ...
12
votes
2answers
768 views
What was the motivation for Minkowski spacetime before special relativity?
If I understand correctly the concept of a Minkowski space/metric was already known before Einstein's paper on special relativity. Was there any physical motivation for studying this type of metric ...
4
votes
3answers
211 views
Did a divide/gap develop in recent times between people working in Mathematics and in Physics, Astronomy and Cosmology?
The direction in which leading research is heading in these subjects is very much different and doesn't seem to be in alignment, there is no sense of parallelism. Is this something that developed in ...
4
votes
2answers
326 views
What were the criticisms against the introduction of “vector analysis”?
Frequently, 19th century physicists—e.g., Helmholtz or Maxwell—did not use modern-day vector notation, which Gibbs contributed in large part to.
For example, Helmholtz in his famous paper on the ...
-1
votes
1answer
158 views
Is Vedic Science true? [closed]
I somewhere read that ancient Indian science was so advanced even in 2000 B.C. (or may be even before this) that Indian scientist and mathematicians calculated the value of distance between sun and ...
3
votes
1answer
94 views
Origin of the term “operator spectrum” and its relation to spectrum in physics
I believe i have been looking in the Internet once for the origin of the term "spectrum" in functional analysis and saw that the term was proposed by someone (by Hilbert?) with no relation to physics, ...
0
votes
0answers
21 views
History of the delta potential barrier in Quantum Mechanics [closed]
I'm interested in finding something out about the history of the problem of the delta potential barrier in QM. Who was the first to propose this problem, and perhaps any particular motivation for it. ...
4
votes
2answers
133 views
History of delta barrier in quantum mechanics
I'm interested in finding something out about the history of the problem of the delta potential barrier in quantum mechanics.
Which was the first study to propose this problem, and perhaps any ...
3
votes
1answer
203 views
What did Lagrange do with his quantity (the Lagrangian in classical mechanics)?
When I was learning classical mechanics, I was quite baffled by the Hamilton's principle, since it involves a quantity named after Lagrange. So, it seems that the principle was not discovered by ...
1
vote
0answers
113 views
How has the definition of a tensor today changed compared to its original definition?
On page 71 of The Absolute Differential Calculus by Levi-Civita, a very clear definition of a tensor is given in terms of how the coefficients of a multi-linear form transform, such that the product ...
5
votes
1answer
325 views
What is Heaviside's version of Maxwell's equations
I have read, in many places, statements like this:
Heaviside was able to greatly simplify Maxwell's 20 equations in 20
variables, replacing them by four equations in two variables. Today we
...
5
votes
2answers
290 views
On the development of Newtonian Mechanics
Having borrowed from the library an English translation of Newton's Principia (Motte's), I read the begining sections, Part 1 and the Systems of the world, and noticed that Newton did physics ...
3
votes
0answers
61 views
Who was the first pointing out the $U(1)$-gauge theories common structure?
It is well-known that in each $U(1)$-gauge theory one can define, in analogy with electromagnetism, a 1-form connection and an associated 2-form of curvature on an appropriate (principal) bundle, ...
6
votes
1answer
275 views
Who named the fugacity, who coined the variable name and did it already relate to complex analysis?
In Riemanns monumental paper, he expresses a prime counting function as an inverse Mellin transform of the log of the function he analytically continued into the complex plane
$$\Pi(x) = \frac{1}{2\...
10
votes
1answer
507 views
How were vector calculus nabla ∇ identities first derived?
(Math Stack Exchange suggested that the same question I posted there be migrated here; The one at Math Stack Exchange was thus deleted. The recommendation message of migration can be found here, ...
10
votes
3answers
518 views
How come we attribute the general theory of relativity to Einstein?
How come do we attribute general theory of relativity to Einstein when David Hilbert published first?
27
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2answers
1k views
When and how was the geometric understanding of gauge theories developed?
In theoretical physics, the modern perspective on gauge theory is that it is most elegantly described in the 'language' of differential geometry. I am interested in the history behind these ideas.
...
