The phrase "admittedly narrow" is correct and usable in written English.
It can be used when acknowledging a limitation or a restricted perspective on a particular topic or issue.
Example: "The analysis provided is admittedly narrow, focusing only on a specific demographic."
Alternatives: "undeniably limited" or "acknowledgedly restricted".
(Their sample is, admittedly, narrow).
Even better, he adds about this song, "In the admittedly narrow niche of pseudopsychedelic cockney music-hall children's songs, it reigns supreme".
Carol M. Browner, the White House's climate adviser, said, "Obviously everyone is disappointed," while Sen. John F. Kerry (D-Mass)., the primary sponsor of the bill, said the legislation Democrats will take up next week is "admittedly narrow". Senate Majority Leader Harry M. Reid (D-Nev). blamed the GOP for blocking the measure, noting that no Senate Republicans had said they would support it.
This new "women's culture" embraces not only Web sites and online magazines but also books, films, television series and entertainment networks that circumscribe, and then pander to, so-called women's interests -- an admittedly narrow range that runs the entire gamut from cosmetics to child care, from personal grooming to personal relationships.
At the same time I have never in my admittedly narrow reading in the tradition seen another logician develop or even use Avicenna's results in this area.
Though its lens is admittedly narrow, zeroing in on three individuals in one (not entirely representative) state party during a relatively short time span, Slutsky's study does an admirable job of extrapolating larger trends from the particulars of Whitney, Healey, and Alexander's experiences.
Only a God able to plumb human hearts could know the answer, but several quite human organizations try to keep track of the admittedly narrower but still not insignificant question of how much money Americans give to charities.
In my own research on the street harassment of gay and bisexual men - an admittedly much narrower group - survey respondents also reported high levels of avoiding specific areas or neighborhoods and crossing the street or taking an alternative route in order to sidestep unwanted interactions in what they felt were unsafe environments.
She continued, "On the admittedly narrow but incredibly vital issue of public education, we have to work with the future President of the United States".
Admittedly, a more narrow version of this challenge was previously seen by Brian Medlin (see Medlin 1957), whose work heavily influenced Dreier.
Admittedly, the range over which a linear concentration response is observed is very narrow and the lower limit of detection leaves much to be desired, limiting the use of this system as a quantitative technique to readout analyte concentrations.
