Sentence examples for many unsolved problems from inspiring English sources

This triumph notwithstanding, number theory remains the source of many unsolved problems, some of the most perplexing of which sound innocent enough.

Archaeology has traced the temple back to the earliest periods of settlement, and though the very early temple plans still pose many unsolved problems, it is clear that from the Early Dynastic period onward the temple was what the Sumerian (e) and Akkadian (bītum) terms for it indicate; i.e., the temple was the god's house or dwelling.

As countries across the Middle East slide into deeper chaos, Morocco seems to be weathering the Arab uprisings, neither imploding nor imposing harsh repression.Yet in the museum's basement, the work of young Moroccan artists hints at the country's many unsolved problems, and the fragility of its social peace.

Despite this, many unsolved problems still remain.

The degree of maturity of those tools varies greatly, and there are still many unsolved problems.

However, the power management and grid connection of EVs still comprise many unsolved problems.

Although there are many unsolved interesting problems for hyponormal operators (e.g., the invariant subspace problem), one of recent trends in operator theory is studying natural extensions of hyponormal operators.

There is no question that the region presents many unsolved social problems.

Although similarity matching has been studied as a key object, there still exist many unsolved difficult problems.

The design of a reliable control and guidance system for aerial vehicles based only on visual information and Inertial Measurement Unit (IMU) data possesses many unsolved challenging problems, ranging from hardware and software development to pure control-theoretical issues.

The mathematics of minimal surfaces is an exciting area of current research with many attractive unsolved problems and conjectures.