The phrase "a singular factor" is correct and usable in written English.
It can be used when referring to one specific element or cause that contributes to a situation or outcome.
Example: "In this complex equation, a singular factor can significantly alter the results."
Alternatives: "a unique element" or "one specific cause".
Then, we consider the composite operator with a singular factor.
We also have estimates of those integrals with a singular factor.
Next, we prove the imbedding inequality with a singular factor in the John domain.
We also obtain a similar version of the Poincaré type inequality with a singular factor for the norm.
We extend Theorem 3.1 to the Lipschitz norm with a singular factor and have the following result.
We also consider the integrals of this composition operator with a singular factor because of their broad applications in solving differential and integral equations; see [4].
A quick heuristic that is often used (but not always true) is "one gene, one protein" meaning a singular gene codes for a singular protein type in a cell (enzyme, transcription factor, etc).
Thus, we draw largely upon work examining singular risk factors and vulnerability, assuming that characteristics affecting vulnerability to a singular risk factor likely will alter vulnerability to cumulative risks.
There is no evidence that aluminum may be a singular causative factor for Alzheimer's disease, but may act as a co-factor that can abet the development of the disease [22].
Any proposed criterion an all-black cast, for example, or a black director, or an exclusively black audience ultimately will fail as a singular defining factor, because, in reality, the race film industry was multifaceted, contentious, and ever changing.
These results suggest that, whereas combined reductions of contrast and complexity in cartoon images result in a smaller P1, neither is a singular driving factor in cortical facilitation by iconic images.
