Results 51 to 60 of about 5,300 (153)

Heavenly metrics, hyper‐Lagrangians and Joyce structures

open access: yesJournal of the London Mathematical Society, Volume 110, Issue 5, November 2024.
Abstract In [Proc. Sympos. Pure Math., American Mathematical Society, Providence, RI, 2021, pp. 1–66], Bridgeland defined a geometric structure, named a Joyce structure, conjectured to exist on the space M$M$ of stability conditions of a CY3$CY_3$ triangulated category.
Maciej Dunajski, Timothy Moy
wiley   +1 more source

On the Lassak Conjecture for a Convex Body

open access: yesМоделирование и анализ информационных систем, 2011
In 1993 M. Lassak formulated (in the equivalent form) the following conjecture. If we can inscribe a translate of the cube $[0,1]^n$ into a convex body $C \subset R^n$, then $\sum_{i=1}^n \frac{1}{\omega_i} \geq 1$. Here $\omega_i$ denotes the width of $
M. V. Nevskii
doaj  

Scaling Behavior and Phases of Nonlinear Sigma Model on Real Stiefel Manifolds Near Two Dimensions

open access: yesUniverse
For a quasi-two-dimensional nonlinear sigma model on the real Stiefel manifolds with a generalized (anisotropic) metric, the equations of a two-charge renormalization group (RG) for the homothety and anisotropy of the metric as effective couplings are ...
Alexandre M. Gavrilik   +1 more
doaj   +1 more source

Conformally invariant random fields, Liouville quantum gravity measures, and random Paneitz operators on Riemannian manifolds of even dimension

open access: yesJournal of the London Mathematical Society, Volume 110, Issue 5, November 2024.
Abstract For large classes of even‐dimensional Riemannian manifolds (M,g)$(M,g)$, we construct and analyze conformally invariant random fields. These centered Gaussian fields h=hg$h=h_g$, called co‐polyharmonic Gaussian fields, are characterized by their covariance kernels k which exhibit a precise logarithmic divergence: |k(x,y)−log1d(x,y)|≤C$\big ...
Lorenzo Dello Schiavo   +3 more
wiley   +1 more source

Multi-scale measurement of constitutive viscoelastic properties of bituminous composites considering moisture and deicing conditions

open access: yesCase Studies in Construction Materials
The use of salt and chemical deicers can cause significant damage to road infrastructures. This study investigates the impact of different deicers on the viscoelastic properties of mastic and asphalt mixtures, with a focus on characterizing their ...
Peyman Mirzababaei   +2 more
doaj   +1 more source

How much can heavy lines cover?

open access: yesJournal of the London Mathematical Society, Volume 109, Issue 5, May 2024.
Abstract One formulation of Marstrand's slicing theorem is the following. Assume that t∈(1,2]$t \in (1,2]$, and B⊂R2$B \subset \mathbb {R}^{2}$ is a Borel set with Ht(B)<∞$\mathcal {H}^{t}(B) < \infty$. Then, for almost all directions e∈S1$e \in S^{1}$, Ht$\mathcal {H}^{t}$ almost all of B$B$ is covered by lines ℓ$\ell$ parallel to e$e$ with dimH(B∩ℓ ...
Damian Dąbrowski   +2 more
wiley   +1 more source

A p$p$‐adic approach to the existence of level‐raising congruences

open access: yesProceedings of the London Mathematical Society, Volume 128, Issue 2, February 2024.
Abstract We construct level‐raising congruences between p$p$‐ordinary automorphic representations, and apply this to the problem of symmetric power functoriality for Hilbert modular forms. In particular, we prove the existence of the nth$n\text{th}$ symmetric power lift of a Hilbert modular eigenform of regular weight for each odd integer n=1,3,⋯,25$n =
Jack A. Thorne
wiley   +1 more source

Integrability of Einstein deformations and desingularizations

open access: yesCommunications on Pure and Applied Mathematics, Volume 77, Issue 1, Page 177-220, January 2024.
Abstract We study the question of the integrability of Einstein deformations and relate it to the question of the desingularization of Einstein metrics. Our main application is a negative answer to the long‐standing question of whether or not every Einstein 4‐orbifold (which is an Einstein metric space in a synthetic sense) is limit of smooth Einstein ...
Tristan Ozuch
wiley   +1 more source

КЛАССИФИКАЦИЯ ВЫПУКЛЫХ МНОГОГРАННИКОВ

open access: yesПроблемы анализа, 2004
The paper is continuation of the author's series of paper devoted to the solution of Hadviger's problem of covering convex polyhedrons with body images at homothety.
ПУОЛОКАЙНЕН Т.М.
doaj  

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