162 research outputs found
Higher Order Connections
The purpose of this article is to present the theory of higher order
connections on vector bundles from a viewpoint inspired by projective
differential geometry
Formal Adjoints and a Canonical Form for Linear Operators
We describe a canonical form for linear differential operators that are
formally self-adjoint or formally skew-adjoint.Comment: 3 page
The Research of Thomas P. Branson
The Midwest Geometry Conference 2007 was devoted to the substantial
mathematical legacy of Thomas P. Branson who passed away unexpectedly the
previous year. This contribution to the Proceedings briefly introduces this
legacy. We also take the opportunity of recording his bibliography. Thomas
Branson was on the Editorial Board of SIGMA and we are pleased that SIGMA is
able to publish the Proceedings.Comment: This is a contribution to the Proceedings of the 2007 Midwest
Geometry Conference in honor of Thomas P. Branson, published in SIGMA
(Symmetry, Integrability and Geometry: Methods and Applications) at
http://www.emis.de/journals/SIGMA
Protein Structure Prediction: The Next Generation
Over the last 10-15 years a general understanding of the chemical reaction of
protein folding has emerged from statistical mechanics. The lessons learned
from protein folding kinetics based on energy landscape ideas have benefited
protein structure prediction, in particular the development of coarse grained
models. We survey results from blind structure prediction. We explore how
second generation prediction energy functions can be developed by introducing
information from an ensemble of previously simulated structures. This procedure
relies on the assumption of a funnelled energy landscape keeping with the
principle of minimal frustration. First generation simulated structures provide
an improved input for associative memory energy functions in comparison to the
experimental protein structures chosen on the basis of sequence alignment
A combinatorial formula for homogeneous moments
We establish a combinatorial formula for homogeneous moments and give some
examples where it can be put to use. An application to the statistical
mechanics of interacting gauged vortices is discussed.Comment: 8 pages, LaTe
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