User talk:Spectral sequence/Archive1

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Excirial ^{(Contact me,Contribs)} 19:53, 9 July 2012 (UTC)

ambiguity

We say that F is a T_i-field if any such system, of degrees d₁, ..., d_m has a common non-zero solution whenever[...etc...]

Does this mean "[...]if there is any system of degrees that has a common non-zero solution whenever[...etc...]", or does it mean "[...]if it is the case that _any_ such system, no matter which one, has a common non-zero solution whenever[...etc...]"? A reasonable person might read it either way. In the first case, changing "any" to "some" would resolve the ambiguity; in the second case, changing "any" to "every" would do it. "Any" is sometimes a hazardous word. I've changed it to "every" in the article. Michael Hardy (talk) 20:18, 15 July 2012 (UTC)

Boettcher Equation

I made a minor correction to address the issue discussed. talk. — Preceding unsigned comment added by 134.245.14.185 (talk) 19:33, 19 July 2012 (UTC)

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May 2013

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A bowl of strawberries for you!

A bowl of strawberries for you! Solomon7968 21:46, 15 June 2013 (UTC)

Thank you! Spectral sequence (talk) 08:25, 16 June 2013 (UTC)

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Fabry gap theorem (check to confirm | fix with Dab solver)

added a link pointing to Natural boundary

Turán's method (check to confirm | fix with Dab solver)

added a link pointing to Power sum

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Turán's method

In Turán's method, you've got

$s_{\nu }=\sum _{n=1}^{N}b_{n}z_{n}^{\nu }.\$

Then later you say the first result applies to sums where $|z_{\nu }|>1$ for all ν. Then you say for any range of ν length N, there is some ν with |s_ν| ≥ something. So you're using the letter ν as the _exponent_ in the expression that defines the sum s_ν, in which the subscript on z is n rather than ν. And at the same time, you've got ν as the subscript on z when you take about the range of values of ν.

That is at best an unclear way to say something. Could you clarify? Michael Hardy (talk) 15:35, 18 June 2013 (UTC)

It should have been sums s_ν where $|z_{n}|\geq 1$ for all n etc. Thank you for pointing that out -- fixed now. Spectral sequence (talk) 17:19, 18 June 2013 (UTC)

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Euler's totient function (check to confirm | fix with Dab solver)

added a link pointing to Unsolved Problems in Number Theory

Nontotient (check to confirm | fix with Dab solver)

added a link pointing to Unsolved Problems in Number Theory

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from user:mathdata

I did not remove the notability tag from Mathematics Library (IA collection). Please explain that why did you send me this message!!!!!!!! Mathdata (talk) 19:09, 19 July 2013 (UTC)

My mistake, sorry. Spectral sequence (talk) 19:12, 19 July 2013 (UTC)

Wisdom needed

Would you like to chime in on Talk:Power_factor#Negative_Power_Factor.3F? There is an issue on as to whether power factors can be described as being negative values. Basically it is the sine value in the 2nd and 4th quadrants. I studied them in school during electrical training. We were taught that they were either 'leading' or 'lagging' depending on which quadrant they were in. I always assumed it was an absolute sine value with lead or lag specified. Since digital meters started being used then things may have changed. Meters are programmed to read out +/- because that is probably easier than lead/lag. This is the most common text used by electricians and should be available in most libraries.--Canoe1967 (talk) 15:50, 28 July 2013 (UTC)

Thank you for the flattering implication of your message heading but this is rather far from my field of expertise. All I can suggest is going by what reliable sources say. Spectral sequence (talk) 15:55, 28 July 2013 (UTC)