The phrase "at a connection between" is correct and usable in written English.
It can be used when discussing a specific point or relationship that links two or more entities, concepts, or locations.
Example: "The researchers focused on the implications at a connection between climate change and biodiversity loss."
Alternatives: "regarding a link between" or "concerning a relationship between".
His campaign printed a flier on pink paper -- the "pink sheet" -- more than hinting at a connection between Communism and Ms. Douglas, a consistent New Deal Democrat.
Trump has an instinct for knowing when he hasn't struck gold, as when he hinted — actually did more than hint — at a connection between Rafael Cruz, the father of Senator Ted Cruz, his chief rival in the G.O.P. primaries, and Lee Harvey Oswald, the alleged assassin of President John F. Kennedy: "Nobody even brings it up.
Whether the yonic horror of Diane's actions finally derives from biology or culture, the novel's pervasive visual grammar, its exhalations of gendered dread, hint at a connection between her and the other female characters, who in turn feel subtly driven by their experience as women.
The increase in transcripts encoding for subunits of RNA polymersase I, II, and III hints at a connection between translational mechanisms and the high meristematic activity observed in com2.g.
The Alliance for Dance at Yale (ADAY) acts as the umbrella organization for all the dance groups at Yale College, uniting the extracurricular dance community and serving as a connection between dance at Yale and dance in the New Haven community.
Philip Coltoff, the executive director of the Children's Aid Society, a New York City charity that has added new relief duties to its regular work, said that he and his staff members were working at "making a connection between what we do for the community and how those services need to be sustained".
President Obama can bring retired FBI agents out of retirement to turn over every rock at AIG for a connection between the bonus and the fraud at the company.
What can I tell her?" Some of those at the rally drew a connection between Mr. Bah's death and several other police-involved shootings this year.
A baseball mystery was born last week when doctors at Boston University, having discovered a connection between brain injuries and a disorder resembling amyotrophic lateral sclerosis, brought up the possibility that Lou Gehrig did not have A.L.S., commonly known as Lou Gehrig's Disease.
"We'll also have separate digital initiatives going on," said Michael J. Boylson, executive vice president and chief marketing officer at Penney, to foster "a connection between online and offline media".
A drawing by Aggie Kenny, in which the artist puts her own paint box and brushes in the foreground of an image of the jury, hints at this, implicitly suggesting a connection between the artist's personal view of things and the individual perspectives of each jury member who struggles to come up with an objective view of the facts.
