The existence of a positive ground state for the problem (NLS) p implies that (NLS) has a positive ground state when a = a p and b = b p. So, it remains to consider a ≠ a p or b ≠ b p. (5.2).
Following the work [2] by Lin and Wei about the existence of ground states for the problem (1.2), there are many results on the existence of ground states relevant to five parameters ( λ 1, λ 2, μ 1, μ 2 and β); see [3 9] and the references therein.
In this case, loot boxes would not be providing a breeding ground for the development of problem gambling so much as they would be allowing games companies to exploit addictive disorders amongst their customers for profit.
Zuccotti Park had become a breeding ground for problems the protesters could have avoided without a physical location.
People said Crown Heights was a dumping ground for the city's social problems, and they talked about the danger that the neighborhood would regress after reaching something resembling prosperity.
"Nobody's talking about Buffalo as ground zero for the lead problem, but when it comes to the levels of lead that's been identified in children, it's higher than what you see in Flint," said Erie County Executive Mark Poloncarz.
SO far, San Diego remains a fertile breeding ground for entrepreneurs, despite the problems in the broader economy.
"The estimate offers grounds for hope that the problem can be solved diplomatically, without the use of force, as the administration has been trying to do," said Stephen Hadley, the national security adviser.
The camp's poor hygiene and ramshackle living conditions are a breeding ground for health problems.
Selling sex is not illegal in Sweden; therefore prostitution is not a ground for legal problems for women.
