# Items where Subject is "49 MATHEMATICAL SCIENCES > 4902 Mathematical physics > 490205 Mathematical aspects of quantum and conformal field theory, quantum gravity and string theory"

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**490205 Mathematical aspects of quantum and conformal field theory, quantum gravity and string theory**(2)

- 4902 Mathematical physics (3)

- 49 MATHEMATICAL SCIENCES (270)

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**2**.## B

Brown, Michael J., and Whittingham, Ian B.
(2017)
*Soft symmetry improvement of two particle irreducible effective actions.*
Physical Review D, 95 (2). 025018. pp. 1-18.

Brown, Michael, Whittingham, Ian B., and Kosov, Daniel S.
(2016)
*Linear response theory for symmetry improved two particle irreducible effective actions.*
Physical Review D, 93 (10). 105018 . pp. 1-13.