Time signature | signature | digital signature | time signature | the 1998 club's two signature moments | Signature Sounds Recordings | Signature | Digital Signature Algorithm | Digital signature | Atrial septal defect | Ventricular septal defect | ventricular septal defect | State Street Bank v. Signature Financial Group | Signature Team | Signature (dance group) | Signature Books | Metric signature | Lamport signature | Granahan's signature, as used on American currency | File signature | Digital Signature | Cyanotic heart defect | Crystallographic defect | atrial septal defect |
defined the signature defect of the boundary of a manifold as the eta invariant, and used this to show that Hirzebruch's signature defect of a cusp of a Hilbert modular surface can be expressed in terms of the value at s=0 or 1 of a Shimizu L-function.