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In this paper, we study the existence of the tangent cone to a positive plurisubharmonic or plurisuperharmonic current with a suitable condition. Some Estimates of the growth of the Lelong functions associated to the current and to its…

Complex Variables · Mathematics 2011-12-16 Noureddine Ghiloufi , Khalifa Dabbek

This work is concerned with branes and differential equations for one-parameter Calabi-Yau hypersurfaces in weighted projective spaces. For a certain class of B-branes we derive the inhomogeneous Picard--Fuchs equations satisfied by the…

High Energy Physics - Theory · Physics 2012-06-13 Johanna Knapp , Emanuel Scheidegger

Dinh--Sibony theory of tangent and density currents is a recent but powerful tool to study positive closed currents. Over twenty years ago, Alessandrini and Bassanelli initiated the theory of the Lelong number of a positive plurisubharmonic…

Complex Variables · Mathematics 2022-06-01 Viêt-Anh Nguyên

We define a theory of descendent integration on the moduli spaces of stable pointed disks. The descendent integrals are proved to be coefficients of the $\tau$-function of an open KdV heirarchy. A relation between the integrals and a…

Symplectic Geometry · Mathematics 2024-10-30 Rahul Pandharipande , Jake P. Solomon , Ran J. Tessler

In this work, following the fundamental work of Boucksom we construct the nef cone of a compact complex manifold in higher codimension and give explicit examples where these cones are different. In the third section, we give two versions of…

Algebraic Geometry · Mathematics 2022-04-29 Xiaojun Wu

We consider the physically relevant fully compressible setting of the Rayleigh Benard problem of a fluid confined between two parallel plates, heated from the bottom, and subjected to the gravitational force. Under suitable restrictions…

Analysis of PDEs · Mathematics 2021-10-22 Eduard Feireisl , Agnieszka Swierczewska-Gwiazda

The interaction of the notivarg with an external Weyl current is discussed. The continuity equation for the Weyl current is obtained. The canonical analysis of the theory of the notivarg interacting with the external Weyl current is…

High Energy Physics - Phenomenology · Physics 2007-05-23 Malgorzata Bakalarska , Waclaw Tybor

This paper aims to define and study currents and slices of currents in the Heisenberg group $\mathbb{H}^n$. Currents, depending on their integration properties and on those of their boundaries, can be classified into subspaces and, assuming…

Differential Geometry · Mathematics 2020-07-03 Giovanni Canarecci

We prove a structure theorem for projective varieties with nef anticanonical divisors.

Algebraic Geometry · Mathematics 2007-05-23 Qi Zhang

We prove intertwining relations by twisted gradients for Markov semi-groups. These relations are applied to Brascamp-Lieb type inequalities and spectral gap results. It generalizes the results of [1] from the Euclidean space to Riemannian…

Functional Analysis · Mathematics 2021-01-14 Baptiste Huguet

In this article we introduce conformal Bach flow and establish its well-posedness on closed manifolds. We also obtain its backward uniqueness. To give an attempt to study the long-time behavior of conformal Bach flow, assuming that the…

Differential Geometry · Mathematics 2021-04-20 Jiaqi Chen , Peng Lu , Jie Qing

It is well known that a k-dimensional smooth surface in a Euclidean space cannot be tangent to a non-involutive distribution of k-dimensional planes. In this paper we discuss the extension of this statement to weaker notions of surfaces,…

Differential Geometry · Mathematics 2022-11-22 Giovanni Alberti , Annalisa Massaccesi , Eugene Stepanov

Many classical objects on a surface S can be interpreted as cross-ratio functions on the circle at infinity of the universal covering. This includes closed curves considered up to homotopy, metrics of negative curvature considered up to…

Complex Variables · Mathematics 2018-08-02 Francis Bonahon , Dragomir Saric

In this note, with the help of the boundary classification of diffusions, we derive a criterion of the convergence of perpetual integral functionals of transient real-valued diffusions. In the particular case of transient Bessel processes,…

Probability · Mathematics 2007-05-23 Paavo Salminen , Marc Yor

The phenomenology of Josephson tunnel junctions between unconventional superconductors is developed further. In contrast to s-wave superconductors, for d-wave superconductors the direction dependence of the tunnel matrix elements that…

Condensed Matter · Physics 2009-10-22 C. Bruder , A. van Otterlo , G. T. Zimanyi

We study five-dimensional Kasner cosmologies in the vicinity of a conifold locus occurring in a time-dependent Calabi-Yau compactification of M-theory. The dynamics of M2-brane winding modes, which become light in this region, is taken into…

High Energy Physics - Theory · Physics 2009-11-10 Thomas Mohaupt , Frank Saueressig

We use the Landauer-B\"uttiker scattering theory for electronic transport to calculate the current cross-correlations in a voltage-biased three-terminal junction with all superconducting leads. At low bias voltage, when charge transport is…

Mesoscale and Nanoscale Physics · Physics 2016-04-27 Roman-Pascal Riwar , Driss M. Badiane , Manuel Houzet , Julia S. Meyer , Yuli V. Nazarov

We discuss an object from algebraic topology, Hopf invariant, and reinterpret it in terms of the $\phi$-mapping topological current theory. The main purpose in this paper is to present a new theoretical framework which can directly give the…

Mathematical Physics · Physics 2008-12-15 Ji-rong Ren , Ran Li , Yi-shi Duan

We develop a theory of simple pentagonal subdivision of quadrilateral tilings, on orientable as well as non-orientable surfaces. Then we apply the theory to answer questions related to pentagonal tilings of surfaces, especially those…

Combinatorics · Mathematics 2019-08-23 Min Yan

We prove that compact complex manifolds with admitting metrics with negative Chern curvature operator either admit a $dd^c$-exact positive (1,1) current, or are K\"ahler with ample canonical bundle. In the case of complex surfaces we obtain…

Differential Geometry · Mathematics 2019-04-01 Man-Chun Lee , Jeffrey Streets