Sentence examples similar to challenging opening from inspiring English sources

And as we heard when the Erol Incedal media challenge opened in June, on this the law is far from clear.

Challenge provides us with opportunity, challenge forces us to grow, challenge opens the way for amazing achievement.

The generalization of those results to the non-radial case is a challenging open problem.

It is a challenging open problem whether the local solution exists globally.

However, face identification from uncontrolled pose remains a challenging open problem in biometric recognition.

Hence, it is a challenging open problem to design semiblind and blind estimators.

However, the regularity of the free boundary remained a challenging open problem.

The joint cancellation of DAC non-linearities, IQ imbalance and amplifier non-linearities remains a challenging open problem.

However, the issue of regularity and uniqueness of such a given weak solution remains a challenging open problem.

Secure stabilization of an MCN is a challenging open problem tightly related to Cyber-Physical Systems security.

Its more general definition leads to the resolution of an overdetermined hyperbolic problem, whose analysis is complex and represents a challenging open question in the field.