About twenty years ago, Olgur Celikbas attended a conference on algebra in Turkey. He and his then girlfriend, Ela Özçağlar, had recently graduated from college in Ankara; both had studied math. At ...

New brand identity, product launches, top talent, and state-of-the-art headquarters converge to take LONG + LIVE + MATH rallying cry to schools and districts PITTSBURGH--(BUSINESS WIRE)--Carnegie ...