منابع مشابه
Covariant path integral for chiral p-forms.
Chiral p-forms play a central role in supergravity and in string theory [1,2]. In particular, they contribute to the `miraculous" cancellation of the gravitational anomaly in type-IIB supergravity or superstring theory, making these theories quantum-mechanically consistent. The calculation of the gravitational anomaly for chiral p-forms was performed rst in [3] without using a Lagrangian but by...
متن کاملChiral Forms and Their Deformations
We systematically study deformations of chiral forms with applications to string theory in mind. To first order in the coupling constant, this problem can be translated into the calculation of the local BRST cohomological group at ghost number zero. We completely solve this cohomology and present detailed proofs of results announced in a previous letter. In particular, we show that there is no ...
متن کاملNaphtho[2,3-a]pyrene forms chiral domains on Au111.
Chiral domains have been prepared by evaporation of a two-dimensionally chiral molecule, naphtho[2,3-a]pyrene (NP), onto the hexagonal Au(111) surface in an ultrahigh vacuum environment. High-resolution UHV scanning tunneling microscopy (STM) showed that NP formed chiral domains consisting of only one 2D enantiomer rather than racemic two-dimensional unit cells. A structural model is proposed t...
متن کاملOn p-normal forms of nonlinear systems
Using the differential-geometric control theory, we present in this note a necessary and sufficient condition under which an affine system is locally feedback equivalent to, via a change of coordinates and restricted smooth state feedback, a generalized normal form called —normal form, which includes Brunovsky canonical form and feedback linearizable systems in a lower-triangular form as its sp...
متن کاملON THE SPLITTING OF QUASILINEAR p-FORMS
We study the splitting behaviour of quasilinear p-forms in the spirit of the theory of non-singular quadratic forms over fields of characteristic different from 2 using an analogue of Knebusch’s generic splitting tower. Several new applications to the theory of quasilinear quadratic forms are given. Among them, we can mention an algebraic analogue of Vishik’s theorem on ‘outer excellent connect...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 1997
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x9700178x