منابع مشابه
Heterotic compactifications and nearly-Kähler manifolds
Recently, a lot of attention was devoted to the study of compactifications on manifolds with reduced structure group. Such manifolds usually appear when one considers generalized compactifications in the presence of non-trivial fluxes. It is well-known that purely geometrical compactifications are supersymmetric if the internal manifold admits a covariantly constant spinor or in other words it ...
متن کاملSolitons and Yukawa Couplings in Nearly Kähler Flux Compactifications
We study vacuum states and symmetric fermions in equivariant dimensional reduction of Yang– Mills–Dirac theory over the six-dimensional homogeneous space SU(3)/U(1) × U(1) endowed with a family of SU(3)-structures including a nearly Kähler structure. We derive the fixed treelevel scalar potentials of the induced Yang–Mills–Higgs theory, and compute the dynamically generated gauge and Higgs boso...
متن کاملUniversal Measure Zero, Large Hausdorff Dimension, and Nearly Lipschitz Maps
We prove that each analytic set in R contains a universally null set of the same Hausdorff dimension and that each metric space contains a universally null set of Hausdorff dimension no less than the topological dimension of the space. Similar results also hold for universally meager sets. An essential part of the construction involves an analysis of Lipschitzlike mappings of separable metric s...
متن کاملcompactifications and function spaces on weighted semigruops
chapter one is devoted to a moderate discussion on preliminaries, according to our requirements. chapter two which is based on our work in (24) is devoted introducting weighted semigroups (s, w), and studying some famous function spaces on them, especially the relations between go (s, w) and other function speces are invesigated. in fact this chapter is a complement to (32). one of the main fea...
15 صفحه اولOn Tropical Compactifications
We give an affirmative answer to a conjecture proposed by Tevelev [16] in characteristic 0 case: any variety contains a schön very affine open subvariety. Also we show that any fan supported on the tropicalization of a schön very affine variety produces a schön compactification. Using toric schemes over a discrete valuation ring, we extend tropical compatifications to the non-constant coefficie...
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: Applied General Topology
سال: 2006
ISSN: 1989-4147,1576-9402
DOI: 10.4995/agt.2006.1937