"hot problem" is correct and usable in written English.
It is often used to describe a particular issue that is considered important, difficult, or controversial. For example, "The debate on climate change has been a hot problem for decades."
But possibly the harshest criticism Black has received to date may be this week's comparisons to Double Take, a teen pop duo whose music video "Hot Problems" has been viewed more than one million time on YouTube.
This type of boundary value problems has become one of the hottest problems at present.
Especially, the boundary value problems of fractional differential equations have been one of the hottest problems.
The commutators of singular integral operators have always been one of the hottest problems in harmonic analysis.
To solve this hottest problems, several schemes have been existed in this category such as simple hash chaining, tree hash chaining where the attacker intensity are unchanged.
To in-depth analysis the failure mechanism and quantify deformation of the structures is one of the hottest problems to be probed in rock mechanics and rock engineering field.
Mobile sink (MS) has drawn significant attention for solving hot spot problem (also known as energy hole problem) that results from multihop data collection using static sink in wireless sensor networks (WSNs).
Mr. Ratner and his culinary team met amid the hard hats and contractors at the Barclays Center recently for a food tour and to discuss what he had christened "the hot dog problem".
A mobile sink can alleviate "hot spot" problem efficiently.
Deploying more nodes to these regions is also another solution for the hot spot problem.
