The phrase "are shared theories" is correct and usable in written English.
It can be used when discussing concepts or ideas that are collectively accepted or understood by a group or community.
Example: "In the field of psychology, there are shared theories that explain human behavior and cognition."
Alternatives: "common theories" or "collectively accepted theories".
Ideas proliferate and are shared, but elaborated theories are put to ever more stringent and frequent tests of viewing as well as of personal experience — above all, to the test of the present tense, which is a matter both of keeping up with the art and of separating carefully from the set patterns of one's own past.
Some key features of these early sentimentalist theories are shared by the psychologist Jonathan Haidt's (2012) contemporary model.
Those passions are shared by Andrew Rosen, the C.E.O. of Theory, who has a plan to bring luxury-apparel production back to the city.
"We are sharing the minimum theory needed in order to explain the practical side," Finkelstein says.
This holistic concept of understanding tumour aetiology through systems biology is shared by the theories of traditional Uighur medicine.
For example, properties such as existence, uniqueness, and multiplicity of solutions may not be shared between the theory of differential equations and the theory of difference equations [11, 12], even though the right-hand side of the equations under consideration may be the same.
It's easy to laugh at this, but in some form his dilemma is shared by all universalist theories about what people really need to be happy in a world that is profoundly multicultural.
The more general prediction of an association between ADHD and choice impulsivity is not specific to delay aversion theory but is shared for example with the Dynamic Developmental Theory of Sagvolden and colleagues (see below).
As the medical theory is shared, the target and source populations also share a sort of common language.
At the least, they should establish to which degree the initial programme theory was shared by the main actors.
