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I know that such correspondence exists when the group is finite. I'm trying to take the basic linear representation theory of finite groups to compact groups. Specifically I'm trying to see if the concept of F[G]-module is well defined. | 0 |
I have been looking for examples of essential discontinuity but have been confused, as different sources cite different things. I know that it might be non-removable discontinuity and infinite and oscillatory are its types. Am I correct? Can somebody explain with examples? | 0 |
For example, if you have a battery and you connect both ends with a short circuit with zero or low resistance, why does it short circuit? What causes this internally? What are really happening with the charges that cause this "explosion"? edit: I specifically want to know why connecting two ends of the battery with a wire with (hypothetically) no resistance would short it. | 0 |
Light always moves in a straight line unless gravity acts on it strongly, but since it is made of electric and magnetic waves, shouldn't it be pulled towards different charges and magnetic, or is light neutral? | 0 |
Can you link action verbs with verbs of being in a sentence? As in say These are people who think critically, solve problems collaboratively, and are prepared to thrive in a global society. | 0 |
Are there words that describe the directionality of languages? I only see compound words, such as left- to- right or top-to-bottom. I would have thought a human practice so ancient as language would have established words to this effect!! | 0 |
Im a mathematician which also learn physics, Ive read several papers on sigma models, and it was quite interesting . So my question is where can I read about open problems of sigma models? | 0 |
When I say 'Been around for a while' I mean like someone who has been somewhere, or been a member for a while. I'm trying to make a role for the people in my discord server for some of the oldest members, you see. | 0 |
I found that it is a normal concept appearing in condensed matter physics and especially topological order field. I have been aware of the topological defect. But what is a symmetry defect? Could someone explain or give a simple concrete example? | 0 |
A person who is especially proud to be from a particular city, and puts down others from opposing cities. They rep their city as if it's a sports team. This is especially true in the US. Could you please suggest a single word one could use to describe such a person well (not a gross hypernym like 'supporter')? | 0 |
If causality is an axiom or a fundamental law in physics, would the existence of causality be a reason which forbids time travel? Because time travel could break causality so we see first the effect and then the cause. | 0 |
In a opening of the news about several drugs for Alzheimer's disease, the news broadcaster said, He(the reporter) has "our" look at the breakthroughs and what they could mean. Why is not just simply "has a look" instead of "has our look"? What implies "our" in that sentence? Thanks. | 0 |
I come from symplectic/poisson geometry and I am curious about shifted symplectic/poisson structure on stacks. From what I've saw, the general context there is derived schemes/stacks, so, Algebraic Geometry. What would be the shortest (and most useful) reference for learning AG for that? Hartshorne? | 0 |
Please help me with my query regarding rainbow formation. Many Books gave formation of only red and violet colour whereas middlemost colours are rising doubt.please check the following picture .My Questions are also marked there.. | 0 |
I just came across a snipet of codes where a long vertical bracket is used to mark a loop. I really like that. I wonder what is the best way to implement this in latex? Thanks | 0 |
If a stone was tied To a string and then we made it undergo uniform circular motion. Is the centripetal force provided by both the weight and tension or the tension only? What force balances the weight if this is not the case? | 0 |
I'm having a hard time to understand the unification algorithm properly. Why are these two problems: P(x , h(b), h(x)) and P(f(g(y)), y, h(f(g(h(a))))) P(f(g(x)), g(b), h(x)) and P(f(y), y, h(c)) don't have a MGU, although I cannot see any circular dependency or function mismatch here. | 0 |
Beyond a formal preference for background independence, what is stopping us from setting cosmological time as a de facto universal timeline, analogous to newtonian absolute time? General relativity doesn't entail it on its own, but neither does it forbid us if certain conditions hold (for a given model.) | 0 |
In nuclear physics literature, both appear very often. HF is easy. It refers to a variational method with a Slater determinant variational wave function. What is HFB? Does it refer to a similar variational wave function which is annihilated by some quasi-particle annihilation operator? The quasi-particle annihilation operator is a mix of some common annihilation and creation operators. | 0 |
The context that I intended to use the phrase was along the lines of: The registration page no longer works because the workshop is [insert the phrase or word here]. The workshop was free so I was not sure if "sold out" was correct. Is there something else I can use? | 0 |
Im trying to find the Integral over the real Numbers of a constant Number (j-i) with respect to a probability measure P. Im new to lebesgue Integration and would appreciate any help :). | 0 |
Can anyone can help me why when we rotate a object on oxy ,that is a linear transformation but not nonlinear transform . I can't imagine the relation between when we rotate a point in oxy and matrix ? | 0 |
Could anyone please point me out in the direction of a book or a paper on Skorokhod topology on caglad functions? Or any other topology on that same space if this one fails. I expect that there is no magic hidden there, but maybe I am wrong. | 0 |
I cannot comprehend how can we break a seemingly non-ideal choke coil into just a pure resistor and inductor in series according to the following solution of a question. Considering the data in the question (all given values are R.M.S values),krichoff's voltage law is seemingly violated,is the question or solution incorrect or am i missing something. | 0 |
The pancake theorem guarantees that there is a line that can bisect a rectangle and a triangle simultaneously. The Borsuk Ulam Theorem can be used to prove that theorem. Show that any line through the center of a rectangle bisects the area of triangle simultaneously (the position of the center triangle can be the same as position the center of a rectangle or not)? | 0 |
When proving the statement above, I completely understand the textbook proof with convergent subsequences and contradiction, but I wonder: when function is continuous by classic epsilon-delta continuity,for all possible points in the closed interval, there is a delta that satisfy epsilon-delta definition, so if we take the smallest delta, will that exact delta satisfy uniform continuity? | 0 |
I was wondering why is it that I can replace heat going into a carnot engine with the temperature of the "hot place" and vice versa, i.e , why can the temperatures of the places replace the heat going in and out of the engine | 0 |
I see that electrons are quite small in size, moreover it is moving fast but I have a question why do free electrons not leave a conductor (like a wire) ? but they can only move at the edge of the conductor? | 0 |
What is the equation for the reverse bias current in terms of voltage applied? And this even be analytically derived? If so, how to derive it. I can't seem to find good resources on this topic. | 0 |
I am trying to change the color of the title block in template GeoURV Poster template. I know that i may change color in the beamerthemeGeoURV.sty. But I would like it to change in the gradient style, let's say from black to orange. | 0 |
This is the integral I want to calculate. I want to integrate over this range: So I set up this integral: However this gives me the wrong answer. Correct answer is: Why is that? | 0 |
If salt water is a good conductor of electricity so does it mean if we put a very large voltage somewhere in the sea then person all across the world will experience some current and are there any physical parameters to quantify this. | 0 |
Please see diagram below showing a rigid rod mass 'm' connected at one end to a fixed frictionless pivot. The rod swings from position A to B changing its orientation around its centre of mass. Can anyone advise how an external torque can be formed that causes the rod to spin about its centre of mass? | 0 |
I understand that the Coriolis effect is not responsible for the spin effect in the bathroom, but I have never seen a rigorous math prof of this. Where could I find a proof of this? What references could I read to try to proof it? is it very long? | 0 |
how does an electromagnetic wave detach itself from something rather than fluxing? electromagnetic radiaton. I need the info for a project and simply couldn't find any useable information on YouTube. other than that all the info I saw on other websites where different/didn't answer the question I had. | 0 |
I was told and convinced that gravity is not a force, and in free fall you're an inertial frame and experience no force, and when on the surface of Earth you would be accelerating upwards. What I admit I can't understand is Earth accelerating, why so? what property of mass explains this? Is there a relationship between an object's mass and its acceleration? | 0 |
In Special Relativity, the diagram we most commonly see is the Minkowski coordinization of Rindler Spacetime (the accelerating observer's coordinates as seen in the inertial frame). Are there any visualizations of the inverse/ how motion in an inertial frame would appear to an accelerating observer? | 0 |
I downloaded Mathpix snip but when I was convet to .tex file it just put an includgraphics. I'd like the commands in Latex in order I can edit the formulas. Is this because I'm trying a free version? Could you give more options? | 0 |
I'm sure this implication is correct. However, are there rules on how one can manipulate with quantifiers? It might somehow be related to whether no free variables are becoming bounded after the operation. | 0 |
Can't find this after googling thirty minutes. In the following sentence, should I use quotation marks or not? James used the words stupid, dumb, and fidiotic in his briefing. James used the words 'stupid,' 'dumb,' and 'fidiotic' his briefing. | 0 |
For example, people that are ostensibly unaware but in reality behaving in a methodical way. Playing dumb but also ingratiating yourself in a savvy way. A word to describe politicians, influencers, and the like. | 0 |
Does "for all the" mean a contrast or a cause and effect? "For all the work he put in, the project was sure a disaster. " Does this mean because of all the work he put in, the project was bad? May you infer if he the project was good, then he didn't work hard? | 0 |
I have searched and I know that it is used in mathematics, but can it be used in the context of a sentence? Like the way we do simplification of a sentence, so for this usage, can we say that we perform complexification of a sentence? | 0 |
My task is to summarize a book and in that summarized version I need to keep both references to page number in the summary and also add manually the page number from the book something like this: I've tried with redefining some of the tocloft commands but it is not working... Thanks! | 0 |
Some people who try to deny the Cavendish Experiment say that the masses attract each other because of the atoms, not gravity. Doesn't an atom have a null electric field by nature? Is there any other way they could attract each other? | 0 |
Suppose I blow dry a region with some water on it. Would it dry it faster than otherwise? If yes, why? I can give one qualitative reason against it, since the blow dryer is blowing room temperature air, no real heating is done on the hair. But perhaps there are some effects I'm not considering, so some more authortative answers would be appreciated. Related | 0 |
After a linear transformation, some vectors may not change direction, they only scale by a number. The scaling factor of those vectors is called eigenvalue. Can we think of singular values in this manner? Since eigenvalues are related to only square matrices, Are singular values the generalized "scaling factors" of a linear transformation (matrix)? Thank you. | 0 |
There's the word luthier for a string instrument maker, but with winds, the only option seem to be more like naming something in modern English, like "reedmaker" which would more apply to double reed instrument players who make their own reeds or something like "wind luthier" even though that's the best option as far as I can tell. | 0 |
A colleague who is a ELL used the word "cork" to signify a mistake/error/typo on a schedule. I thought that the four-day schedule was a cork. She says she thinks her English teacher was a Kiwi. I can't find any such usage. | 0 |
To describe transformations from certain programming constructs into e.g. assembler I need a horizontal line with a downward pointing arrow in the center of the line. Is there also a way to achieve this without tikz? | 0 |
I am looking for a way to determine the rotation of an electric motor externally as i can not see the shaft the outside of the motor is smooth all the way around. is there sufficient magnetic field to have a pull on a magnetic ball? | 0 |
I wonder if all interrogative pronouns can be used in structures like Where better to learn about the resilience of life? For example, Who better to repair my car? How better to cook potatoes than by baking? | 0 |
I have seen the doppler effect derived quite a few times when the observer is moving. What is the source is also moving at some random velocity in some angle? How would one go about thinking about this? | 0 |
I am trying to draw a bold diameter symbol. I imported the diameter symbol by the package wasysymas shown in this answer and looked at several ways how to use bold math symbols as shown here and here, yet none of them seemed to work for me. How can I achieve this? | 0 |
In a solenoid, when current changes with time an EMF is induced, but it should not be like this, because the wire which is bend to make solenoid is isolated (usually painted to give it an insulation) so each turn of solenoid is not completely a closed loop because the ends of the wire forming the turn are not joined, the coating is joined. | 0 |
i was trying to show it with polar coordinates but it showed that the limit exist however wolfram alpha stated that the limit does not exist so im confused does not polar coordinates proof is enough | 0 |
I am a total newbie so I appreciate all your answers as simple as possible. I want to have in my entire document all examples to be "non-floating", it means when I write: The following example shows this: IMAGE ...so I want it to be fixed there, below, centred. Is there any way to make that setting permanent in the header of the document? | 0 |
Quantum fidelity estimation is to estimate the similarity between two quantum states or process. Could quantum fidelity be viewd as a parameter? And what are the similarity and difference between quantum fidelity estimation and parameter estimation problem? Cross-posted on qc.SE | 0 |
It is clear that the Zorn lemma guarantees the existence. I prove that the minimal element is unique, and obviously the set is totally ordered. So because the uniqueness of the successor of all elements of the set, in same sense it seems reasonable to me that we will find the uniqueness of the maximal element, but i don't know how to prove it | 0 |
If denser medium tend to decrease the speed of light (that is why the light rays get refracted to travel a shorter distance to maintain the highest speed possible) Then why total internal reflection happen? if light escapes the denser medium then it will be at more speed - right? then why do the opposite of what is intended? | 0 |
With reference to this article, I'm curious about how the modular inverse of a polynomial is computed. Moudluar inverse of a number with respect to a modulus exists when the two numbers are relatively prime. I was initially expecting this to hold for coefficients of a polynomial function. | 0 |
My question is what is the name for words that intensifiers cannot be used with. Words like unique or impossible. Something cannot be more unique or more impossible than another thing. I forgot the name for these and am very curious. | 0 |
In theory, since the stone acquires the velocity of the balloon, it should go upwards slightly before coming down since it's velocity is equal to that of the balloon (in upward direction). But realistically, does it so the same? Asking from the perspective of an observer on the ground. | 0 |
For a sentence I got this book from Tom, if we simply rewrite it with passive voice, it would seem to be like This book was gotten from Tom. But I haven't quite met such expressions as Something is gotten from somebody. Is it idiomatic to say so? | 0 |
I am going to help you. What is the grammatical function of to help you here? Reopen note Please note that I did not ask about going to (and that the to belongs with the following verb as shown above, not with going). The question is about the grammatical relations of to help you, not about going. | 0 |
In the context of a section in a technical document that describes several topics, one of which is essential and others can be skipped, which of the following is better? You can skip the others on first reading. vs You can skip the others at first reading. | 0 |
A chapter title appears on bottom of page in toc with section titles beginning on the next page of toc. Is there some way to force the chapter title onto the next page? | 0 |
My actual question is that i want to know the molecular interaction can all takes place between non polar solvents and non polar solutes and also i want to know that why does some non polar substance dissolve in water like sugar?? | 0 |
Forced fun would be the dreaded company outing with icebreakers and other group activities meant for enjoyment but often achieve the opposite. But, what is a single word that defines this? The major drawback in working for ElboniaCo was the unavoidable requirement to participate in the company's ill-conceived ______ activities. | 0 |
Could someone please help me in downloading the paper 'On the distribution of almost primes in an interval' by Jingrun Chen (journal: scientia sinica)? I was not able to find it on internet? Any hel would be appreciated. Thanks in advance | 0 |
The title sums it up; are there any practical examples of not uniformly charged line charges and ring of charge? Line chargers: I know they are used in wire chambers for high-energy physics experiments, but usually, they are uniformly charged from what I've read. Connected wire to the battery are chargeless, so I'm kind of clueless now. Thank you:) | 0 |
Let's say that an AI was created to toast bread. That is its only function, and only use. How would I describe such a thing in one word? For instance: Like a _____, it executed its task. | 0 |
He made no comment and there was a long and unhappy pause during which the cab leapt forward a foot or so, only to pause and pant again, frustrated. I thought 'frustrated' explained the atmosphere of the whole part of the sentence before it. Then, can I assume it is a kind of appositive? | 0 |
draw a circuit graph; check the fulfillment of the ergodicity criterion; calculate the marginal probabilities; write down the limit transition matrix; carry out simulation modeling of the system corresponding to the one under consideration | 0 |
I was using Ipe to draw "Venn regions" (not really the classical ones) as this one, However, I have the impression TikZ has better renderings in latex work. How can I produce such diagram in TikZ? | 0 |
I am using integration by part concept in my proofs in which I will use it recursively infinite times. In this regard, I am wondering, what will be the last term of the resulting series which will have infinite order derivative of the first function. Can anybody give me abstract mathematical form or the resulting infinite sum? | 0 |
A rod with a fixed pivot is rotated by torque T so that its free end pushes on different masses (see images A, B and C). Let's assume there is no force of gravity involved. Will the combined MOI of the rod/mass affect the contact force value? | 0 |
I struggle with commas. Not sure if it's because I never learnt any grammar, I have unusual breathing habits, am oddly polemical in speech, or what exactly. Anyway Should you include (the) commas in sentences such as I am, if not stupid, then dim. And why (be as technical as you want)? In general: any help with commas? | 0 |
I have measured the rotational speed of a bicycle wheel in free rotation up to stop and i would like to have the physical equation (it is not linear). I would like to compute the frictional losses in the bearing. | 0 |
This is similar to another question on my page but this one is more conceptual: If you have a saddle point, is this always classified as unstable if you're doing a stability analysis? What do they mean? | 0 |
Does the following sentence sound grammatical to you? There danced a man in the hall With the meaning: A man danced in the hall. And compare it with There died a man in the hall Which one sounds more grammatical? Focus on the verb distinction between dance and die please. | 0 |
Maybe something like, "loser loser drunken boozer"? I couldn't find examples online, other things come up in a search. A scenario to be used in would be when someone loses a competition and they are mocking the loser. Answers should be something that has been used before, in contrast to the original phrase. | 0 |
When talking about the growth of a production plant, which of the following is correct, and why? We are growing in area and number of employees. Or: We are growing in area size and number of employees. | 0 |
Simply what is our best estimation of what came first in the the first fraction of time of the BB? Was it the vacuum and then matter popped out from violent quantum vacuum fluctuations or matter then after matter diluted making vacuum? | 0 |
I am wondering if vertices of a planar graph can lie on top of each other in an embedding of the graph. Also, when drawing a picture/representation of the graph, is drawing vertices on top of vertices precluded? thanks | 0 |
So I want to start self-studying topology. What do I have to necessarily have some base knowledge in? So which specific mathematical areas should i be decent/good in? Also I'd happily take any suggestions on where to start. Thanks in advance. | 0 |
I'm searching for a synonym of word like savvy or veteran but I need another expression , which would have the exact meaning of someone reaches very high level of mastery of skill or technique and appears with much respect from other people,and I would thank you all for answering! | 0 |
why does the sum disapear in this derivation: derivation of loss Mean Squared Error. It comes from the following wikipedia page: https://en.wikipedia.org/wiki/Gradient_boosting. It is the last equation of the informal introduction section. Thank you very much ! | 0 |
Found this formula being used in a polytropic process where pressure was not even constant. So how are we finding specific heat for constant pressure? k in this example was the power in the polytropic equation. What is the derivation and actual use of this formula? | 0 |
An aperiodic tiling shape, "the hat" was discovered recently. If you split a tiled planed into hexagons, containing the borders of the hat, would there be a finite number of unique hexagons. If so, would there be a simple rule to use said hexagons to recreate the tiled hats? | 0 |
If comets are thought to brought water on Earth could there be water in form of ice on the neighbouring Moon's poles? As water can easly evaporate if there is no atmosphere as in the case of Moon's equator can it 'survive' on cold places like the poles of the Moon? | 0 |
I am studying about tomographic interferometric sar polarimetry and i don't have enough knowledge about complex hermitian matrix , special unitary groups, their quadratic forms and numerical optimization based on these kind of matrices and forms in linear algebra. Is there some book or books to start learning these topics for my lecture??? Thanks | 0 |
I want to put multiple figures (with partial regular name) into Latex with section ranking number and picture name, could you teach me how to do that? The picture's format is .jpg, please find the detailed name in the picture below, thanks. | 0 |
I have no clue on how to solve this problem. Please help me as I do not understand the solution on my book. Edit: Sorry for not sending the solution: The issue is in the fourth line I understand how the process should work but I wonder if there are other ways to solve the problem | 0 |
Matter is something which has mass and occupy space . So it's indivisible particle must also occupy space . If it occupy space then it must have some boundary surface which encloses its volume . If realy those particles have volume , then what is the charisteristics of the boundary surface? And how do one particles interact with the boundary surface of other wall? | 0 |
Is it possible to have light refract in one direction, then reflect off a mirror but come back as a straight line like the picture below? The context of this problem is in lens optics when a microdisplay is on the frame of the glasses and light is shining into the lens to project into the eye | 0 |
I am reading up on finite approximation recentlyenter link description here, can someone help me explain why the author expressed the interval h as a sinusoidal function in this paper? And how did that come about? Or I just don't understand this way of writing, for example, why the symbols s and k are associated with the interval h. | 0 |
When creating LaTeX language packages for use in by French mathematicians, German , chinese mathematicians and other mathematicians, it is helpful to know what English words various LaTeX commands were derived from. For example, a Chinese mathematician might have difficulty translating dfrac from English into Chinese (or Putonghua). What is dfrac when spelled out in full English words? | 0 |
Suppose we have a bulk theory that has some holographic CFT dual at the boundary. Suppose we construct an operator that 'looks like' (whatever that needs to mean) a Fourier mode in the bulk perspective. If we consider this as operator purely from the perspective of the boundary theory, what sort of data is this picking up about our CFT? | 0 |
Dyes and different colorings are often mixed into materials. These are usually a small fraction of the total material volume/mass and aren't painted on so don't have a uniform surface coat but some manage to block all light or all light from a certain wavelength. How does this work? Why can widely/randomly spaces molecules block light? | 0 |
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