منابع مشابه
M-Theory with Framed Corners and Tertiary Index Invariants
The study of the partition function in M-theory involves the use of index theory on a twelve-dimensional bounding manifold. In eleven dimensions, viewed as a boundary, this is given by secondary index invariants such as the Atiyah–Patodi–Singer eta-invariant, the Chern–Simons invariant, or the Adams e-invariant. If the eleven-dimensional manifold itself has a boundary, the resulting ten-dimensi...
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The present paper aims to investigate the role of open metal site metal-organic frameworks (MOFs) on hydrogen adsorptivity using periodic boundary condition (PBC) density functional theory (DFT). Hence, MIL-47-M (M = V and Fe) were selected and one hydrogen molecule adsorptivity was calculated in different orientations on them. Four different chemical sites were identified in every cluster sect...
متن کاملCoupling of M–branes in M–theory
Coupling of a membrane and a five-brane to the bosonic sector of D = 11 supergravity is considered. The five–brane is a dyonic object which carries both an electric and a magnetic charge of the D = 11 three-form gauge field A, and it couples not only to A but also minimally couples to a six-form field A dual to A. This implies that the 5-brane should more naturally couple to a version of D = 11...
متن کاملSuperpotentials in M - theory
We discuss the effective action for weak G2 compactifications of M-theory. The presence of fluxes acts as a source for the the axions and drives the Freund-Rubin parameter to zero. The result is a stable non-supersymmetric vacuum with a negative cosmological constant. We also give the superpotential which generates the effective potential and discuss a simple model which aims to incorporate the...
متن کاملCorners in Cartesian products
This note is an illustration of the density-increment method used in the proof of the density Hales-Jewett theorem for k = 3. (Polymath project [2]) I will repeat the argument applying it to a problem which is easier than DHJ. In the last section I will describe the proof of the density Hales-Jewett theorem for k = 3. The results stated here are direct interpretations of the project’s results, ...
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ژورنال
عنوان ژورنال: Journal of Physics A: Mathematical and Theoretical
سال: 2011
ISSN: 1751-8113,1751-8121
DOI: 10.1088/1751-8113/44/25/255402