Results 61 to 70 of about 148,144 (172)

Wall–chamber decompositions for generalised Monge–Ampère equations

Journal of the London Mathematical Society, Volume 114, Issue 1, July 2026.
Abstract Generalised Monge–Ampère (gMA) equations form a large class of PDE including Donaldson's J‐equation, inverse Hessian equations, some supercritical deformed Hermitian–Yang–Mills (dHYM) equations and some Z‐critical equations. Solvability of these equations is characterised by numerical criteria involving intersection numbers over all ...
Sohaib Khalid, Zakarias Sjöström Dyrefelt   +1 more
wiley   +1 more source

Matter field Kähler metric in heterotic string theory from localisation

Journal of High Energy Physics, 2018
We propose an analytic method to calculate the matter field Kähler metric in heterotic compactifications on smooth Calabi-Yau three-folds with Abelian internal gauge fields.
Ştefan Blesneag, Evgeny I. Buchbinder, Andrei Constantin, Andre Lukas, Eran Palti   +4 more
doaj   +1 more source

Affine hypersurfaces and superintegrable systems

Journal of the London Mathematical Society, Volume 114, Issue 1, July 2026.
Abstract It was recently shown that under mild assumptions, second‐order conformally superintegrable systems can be encoded in a (0,3)‐tensor, called structure tensor. For abundant systems, this approach led to algebraic integrability conditions that essentially allow one to restore a system from the knowledge of its structure tensor in a point on the ...
Vicente Cortés, Andreas Vollmer
wiley   +1 more source

Quasi-Statistical Manifolds with Almost Hermitian and Almost Anti-Hermitian Structures

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
Let (M, g, ∇) be a 2n-dimensional quasi-statistical manifold that admits a pseudo-Riemannian metric g (or h) and a linear connection ∇ with torsion. This paper aims to study an almost Hermitian structure (g, J ) and an almost anti-Hermitian structure (h,
Aktaş Buşra, Gezer Aydin, Durmaz Olgun
doaj   +1 more source

Toric extremal Kähler-Ricci solitons are Kähler-Einstein

Complex Manifolds, 2017
In this short note, we prove that a Calabi extremal Kähler-Ricci soliton on a compact toric Kähler manifold is Einstein. This settles for the class of toric manifolds a general problem stated by the authors that they solved only under some curvature ...
Calamai Simone, Petrecca David
doaj   +1 more source

Prismatic F‐crystals and Wach modules

Proceedings of the London Mathematical Society, Volume 133, Issue 1, July 2026.
Abstract We show that the category of analytic/completed prismatic F-crystals$F\text{-crystals}$ on the absolute prismatic site of a small (unramified at p$p$) base ring is naturally equivalent to the category of relative Wach modules from the theory of (φ,Γ)-modules$(\varphi, \Gamma)\text{-modules}$.
Abhinandan
wiley   +1 more source

Geometric Characterizations of Riemann Solitons

Journal of Mathematics
In this paper, we find the geometric characterizations of Riemann solitons within the background of co-Kähler manifolds admitting semisymmetric metric ζ-connection. Let g,V be a Riemann soliton on a co-Kähler manifold M admitting a semisymmetric metric ζ-
Abdul Haseeb, Meraj Ali Khan, D. G. Prakasha, T. Manjula   +3 more
doaj   +1 more source

Four-dimensional almost Kähler locally symmetric spaces [PDF]

, 1996
In the framework of studying the integrability of almost Kähler manifolds, we prove that a four-dimensional compact almost Kähler locally symmetric space is a Kähler ...
Oguro, Takashi, Murakoshi, Noriko, Sekigawa, Kouei   +2 more
core   +1 more source

Special geometry on the moduli space for the two-moduli non-Fermat Calabi–Yau

Physics Letters B, 2018
We clarify the recently proposed method for computing a special Kähler metric on a Calabi–Yau complex structure moduli space using the fact that the moduli space is a subspace of a particular Frobenius manifold. We use this method to compute a previously
Konstantin Aleshkin, Alexander Belavin
doaj   +1 more source

Which 3-manifold groups are Kähler groups

, 2009
The question in the title, first raised by Goldman and Donaldson, was partially answered by Reznikov. We give a complete answer, as follows: if G can be realized as both the fundamental group of a closed 3-manifold and of a compact Kähler manifold, then ...
Alexander I. Suciu, Alexandru Dimca
core