106 citations · 519 across the 20 of their papers we have counts for
21 papers
A touch of quantum field theory
Werner Nahm
The overlap of Srinivasa Ramanujan's work with quantum field theory is discussed. A mathematically natural axiom for euclidean quantum field theories is proposed.
One Hundred Years of the Cosmological Constant: from 'Superfluous Stunt' to Dark Energy
Cormac O'Raifeartaigh, Michael O'Keeffe, Werner Nahm +1
We present a centennial review of the history of the term known as the cosmological constant. First introduced to the general theory of relativity by Einstein in 1917 in order to d…
Ampleness equivalence and dominance for vector bundles
F. Laytimi, W. Nahm
Hartshorne in "Ample vector bundles" proved that is ample if and only if $\OOO_{P(E)}(1)$ is ample. Here we generalize this result to flag manifolds associated to a vector bund…
Rational CFTs on Riemann surfaces
Marianne Leitner, Werner Nahm
The partition function of rational conformal field theories (CFTs) on Riemann surfaces is expected to satisfy ODEs of Gauss-Manin type. We investigate the case of hyperelliptic sur…
Einstein's 1917 Static Model of the Universe: A Centennial Review
Cormac O'Raifeartaigh, Michael O'Keeffe, Werner Nahm +1
We present a historical review of Einstein's 1917 paper 'Cosmological Considerations in the General Theory of Relativity' to mark the centenary of a key work that set the foundatio…
Semiample and k-ample vector bundles
F. Laytimi, W. Nahm
We show that tensor products of semiample vector bundles are semiample. For k-ampleness in the sens of Sommese, we show that over compact complex manifolds tensor products of semia…