Sentence examples for problems remain open from inspiring English sources

Many fundamental mechanical problems remain open.

These problems remain open for higher-dimensional algebraic varieties, although a number of specific results are known.

However, several related control problems remain open to new investigations such as robust performance, spillover instability, and structural changes due to damage.

Therefore, while numerous problems remain open, the results of decades of earthquake prevention methods, indeed, seem to have saved a significant number of lives in 2015.

The class of shrinking (or strictly contractive) maps is slightly less popular: few specific results on them (not applicable to all nonexpansive maps) appear in the literature and some interesting problems remain open.

However, several problems remain open; these include the uniqueness of the numerical solution and the mathematical consistency of the MHD equations on a specified boundary (these questions will be discussed below).

The study of von Neumann algebras i.e., special algebras of all bounded linear operators on a Hilbert space began in the 1930s, when their factors were classified, although technical problems remained open until the late '60s, when there was a resurgence of interest.

Finally, we conclude by discussing problems that remain open after the last decade of intensive research on the Kuramoto model and point out some promising directions for future research.

Furthermore, numerical criteria are presented while indicating the sources of conservatism, the problems that remain open and the possible directions of improvement.

Many research problems still remain open in WMNs [1].

Invoking non-normal worlds provides a simple way of modelling such sentences and the reasoning involving them.[7] There are other philosophical (and logical) problems that remain open.