The phrase "a core problem of" is correct and usable in written English.
It can be used when discussing a fundamental issue or challenge related to a specific topic or situation.
Example: "One core problem of the current education system is the lack of resources for underfunded schools."
Alternatives: "a fundamental issue of" or "a central challenge of".
Building on their sample reweighting methods, the authors assay a core problem of robust empirical inference.
That money could help combat a core problem of the credit crisis: the reluctance by banks to give companies the short-term loans needed for daily business.
To begin with, a core problem of the military outsourcing experience has been the lack of coordination, oversight and management from the government side.
But the generic point was that, notwithstanding all of the hundreds of hours I and others spent with each of their leaders, they didn't resolve a core problem of how the hell they're gonna live together.
In an ironic twist, Mr. Wiedeking also anticipated a core problem of car companies worldwide — a lack of economies of scale — but his solution of Porsche taking over Volkswagen became his undoing.
"Now Germans are beginning to recognize that this is a core problem of all people," said Bernd Schlömer, the vice chairman of Germany's Pirate Party, a new party that recently won 8.9 percent of the vote in Berlin's state elections and emphasizes Internet freedom and online privacy issues.
The training was made at a university clinic, which theoretically could be a barrier for help seeking since eye-contact and talking to authority figures is a core problem for some of the sufferers.
Their work (and that of Lorna Wing, in particular) suggested that in all autistic individuals there was a core problem, a consistent triad of impairments: impairment of social interaction with others, impairment of verbal and nonverbal communication, and impairment of play and imaginative activities.
A core problem is a lack of incentives for developing countries to protect forests, especially when faced with the need to expand their economies.
Enumerating small subgraph patterns in very large graphs is a core problem in the analysis of social networks, bioinformatics data sets, and other applications.
Stephen Dorrell, a former health secretary and the current chairman of the House of Commons Health Select Committeee, agrees there is a "core problem" which shows the "culture of the health service is wrong".
