It’ll be interesting to see how that affects their strategy and balancing that priority with a growing ad business and the commerce behemoth,” he said.Jassy is known for understanding technical details, and he has regularly taken jabs at legacy player Oracle Corp and cloud rival Microsoft Corp, which AWS continues to exceed in sales.Under Jassy’s leadership, Amazon’s cloud business has signed major customers including Verizon, McDonald’s and Honeywell. The division’s quarterly revenue consistently rose by double digits, helping cement its position as the market leader.One contract AWS failed to win was the $10 billion “JEDI” contract from the Pentagon, which was awarded to Microsoft.Jassy has bestowed a rock star aura to keynotes at AWS’s annual Las Vegas conference, speaking before over 60,000 attendees in 2019 after upbeat music preceded his talk.Bezos, who started the company 27 years ago as an internet bookseller, said in a note to employees posted on Amazon’s website, “As Exec Chair I will stay engaged in important Amazon initiatives but also have the time and energy I need to focus on the Day 1 Fund, the Bezos Earth Fund, Blue Origin, The Washington Post, and my other passions.” Blue Origin is Bezos’ space company, and the Post is his private newspaper holding.He added, “I’ve never had more energy, and this isn’t about retiring.”Amazon’s net sales rose to $125.56 billion as consumers turned to the world’s largest online retailer for their holiday shopping, beating analyst estimates of $119.7 billion, according to IBES data from Refinitiv.Amazon shares were up less than 1% in after hours trading.Jassy’s AWS, traditionally a bright spot, fell slightly short of expectations in the fourth quarter. While the cloud computing division announced deals in the quarter with ViacomCBS , the BMW Group and others, it posted revenue of $12.7 billion, short of the $12.8 billion analysts had estimated.Amazon said it was not announcing an AWS replacement for Jassy at this time.Meanwhile Amazon’s e commerce business has never been as big.

We discuss the threshold distance of 0 pi 0 junctions and the critical bias current in $0 kappa$ junctions in the presence of ac drives. Then, we consider a spatially inhomogeneous sine Gordon equation with two regions in which there is a pi phase shift, and a time periodic drive, modelling 0 pi 0 pi 0 long Josephson junctions. We discuss the interactions of symmetric and antisymmetric defect modes in long Josephson junctions.