Transwarp theory
A transwarp theory or a transwarp equation was the theoretical model of a transwarp application in technology. 

A transwarp theory on transwarp beaming was an equation originally postulated by Starfleet officer Montgomery Scott in the mid-23rd century, whereby it was possible to beam an object or person from one planet to an adjacent one, from one star system to another, or even to a starship traveling at high warp. By 2387, Scott had perfected his equations to a functioning technology. (; )

By 2259 of the alternate reality, Starfleet had confiscated the equation from Scott. Upon realizing that John Harrison had used an application of this equation to escape to Qo'noS,  was disturbed at the thought that Starfleet was ultimately responsible for giving Harrison the power to utilize it. ()

In 2377, the Boray held a conference on transwarp theory in the Delta Quadrant.  B'Elanna Torres participated in the conference. ()

See also
 Quantum warp theory
 Warp theory

Theory