Results 11 to 20 of about 201 (51)

The Ricci iteration and its applications [PDF]

open access: yes, 2007
In this Note we introduce and study dynamical systems related to the Ricci operator on the space of Kahler metrics as discretizations of certain geometric flows.
Rubinstein, Yanir A.
core   +3 more sources

On the lower bound of the K energy and F functional [PDF]

open access: yes, 2008
Using Perelman's results on Kahler Ricci flow, we prove that the K energy is bounded from below if and only if the F functional is bounded from below in the canonical Kahler class.Comment: Final version, to appear in Osaka Journal of ...
Li, Haozhao
core   +2 more sources

Balanced metrics and noncommutative Kaehler geometry [PDF]

open access: yes, 2010
In this paper we show how Einstein metrics are naturally described using the quantization of the algebra of functions on a Kahler manifold M. In this setup one interprets M as the phase space itself, equipped with the Poisson brackets inherited from the ...
Lukic, Sergio
core   +5 more sources

Stability of Sasaki-extremal metrics under complex deformations [PDF]

open access: yes, 2012
We consider the stability of Sasaki-extremal metrics under deformations of the complex structure on the Reeb foliation. Given such a deformation preserving the action of a compact subgroup of the automorphism group of a Sasaki-extremal structure, a ...
Besse   +31 more
core   +3 more sources

On the Critical Points of the E_k Functionals in Kahler Geometry

open access: yes, 2006
We prove that a Kahler metric in the anticanonical class which is a critical point of the functional E_k and has nonnegative Ricci curvature, is necessarily Kahler-Einstein.
Tosatti, Valentino
core   +1 more source

Kahler-Einstein metrics on symmetric Fano T-varieties [PDF]

open access: yes, 2013
We relate the global log canonical threshold of a variety with torus action to the global log canonical threshold of its quotient. We apply this to certain Fano varieties and use Tian's criterion to prove the existence of Kahler-Einstein metrics on them.
Suess, Hendrik, Süß, Hendrik
core   +2 more sources

Adler-Bell-Jackiw anomaly in Weyl semi-metals: Application to Pyrochlore Iridates

open access: yes, 2012
Weyl semimetals are three dimensional analogs of graphene where the energy of the excitations are a linear function of their momentum. Pyrochlore Iridates $(A_{2}Ir_{2}O_{7})$ with A =yttrium or lanthanide element) are conjectured to be examples of such ...
G. Volovik, Vivek Aji
core   +1 more source

On the construction of Nadel multiplier ideal sheaves and the limiting behavior of the Ricci flow

open access: yes, 2007
In this note we construct Nadel multiplier ideal sheaves using the Ricci flow on Fano manifolds. This extends a result of Phong, Sesum and Sturm. These sheaves, like their counterparts constructed by Nadel for the continuity method, can be used to obtain
Rubinstein, Yanir A.
core   +4 more sources

Strict positivity of Kähler–Einstein currents

open access: yesForum of Mathematics, Sigma
Kähler–Einstein currents, also known as singular Kähler–Einstein metrics, have been introduced and constructed a little over a decade ago. These currents live on mildly singular compact Kähler spaces X and their two defining properties are the following:
Vincent Guedj   +2 more
doaj   +1 more source

Colored HOMFLY-PT polynomials that distinguish mutant knots

open access: yes, 2017
We illustrate from the viewpoint of braiding operations on WZNW conformal blocks how colored HOMFLY-PT polynomials with multiplicity structure can detect mutations.
Nawata, S., Ramadevi, P., Singh, V.
core   +1 more source

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