"theoretical boundaries" is a correct and usable term in written English.
You can use it to refer to invisible or abstract limits or limitations. For example: "This study seeks to explore the theoretical boundaries of what is possible in quantum computing."
" If theoretical boundaries are blurring, it may be because policies have done the same.
In our 50-year history, ISPS has produced research driven by faculty interests and expertise that breaks methodological and theoretical boundaries to illuminate new frontiers of knowledge.
Our results provide a firm worst-case guarantees and theoretical boundaries for the performance of polynomial-time preprocessing algorithms for the considered problems.
The result of this approach is a clustering of participants that is not determined by their prevalence in our dataset, or even by their apparent grouping in the model parameter space, but purely based on the theoretical boundaries in the model space.
Although the management of inter-firm projects is increasingly being researched in a wide range of academic fields (project management, alliances and networks, organization studies), the findings of these studies rarely cross theoretical boundaries.
Tertiary academic institutions provide a setting where would-be scientists can hone cutting-edge technical skills and push theoretical boundaries.
The porousness of Frankfurt's theoretical boundary between lies and bullshit is apparent in Laura Penny's "Your Call Is Important to Us: The Truth About Bullshit" (Crown; $21.95).
Graphs are presented showing the transitions between various "theoretical" boundary conditions by adjusting the flange/web geometric proportions.
Technically, data in several ghost cells are constructed with interpolation so that the interior scheme can be implemented over boundary cells, and theoretical boundary condition has to be modified properly at intermediate stages so as to make the two-stage scheme over boundary cells fully consistent with that over interior cells.
This is nonintuitive and highlights the fact that theoretical boundary conditions are only prescribed for continuous partial differential equations (PDEs), while they must be approximated in a consistent way (even though they could be exactly valued) when the PDEs are discretized.
Additionally, the results suggest that the BP-TR regime extends well beyond what was previously theorized since neither broken nor broadened reaction layers were observed under conditions with Karlovitz numbers as high as 533, which is five times higher than the theoretical boundary.
