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Recent work has proposed explicitly inducing language-wise modularity in multilingual LMs via sparse fine-tuning (SFT) on per-language subnetworks as a means of better guiding cross-lingual sharing. In this work, we investigate (1) the…

Computation and Language · Computer Science 2023-11-15 Rochelle Choenni , Ekaterina Shutova , Dan Garrette

The Dipole-Quadrupole theory of Surface Enhanced Hyper Raman Scattering (SEHRS), created by the authors is expounded in details. Peculiarities of the behavior of electromagnetic field on rough metal surfaces are considered. It is…

Optics · Physics 2014-11-17 V. P. Chelibanov , A. M. Polubotko

In a real Hilbert spaces H a smooth operator F is studied, whose derivative at each point of its domain is a symmetric operator. In terms of abstract boundary conditions locally self-adjoint extensions of this operator are described. We use…

Functional Analysis · Mathematics 2020-12-21 Leonid Zelenko

Hierarchies of evolution equations of pseudo-spherical type are introduced, generalizing the notion of a single equation describing pseudo-spherical surfaces due to S.S. Chern and K. Tenenblat, and providing a connection between…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 Enrique G. Reyes

We study complements of hypersurfaces in schemes with respect to the property being affine.

Commutative Algebra · Mathematics 2007-05-23 Holger Brenner

In this paper, we study some characterizations of fuzzifying strong compactness including nets and pre-subbases properties. We also introduve new characterizations of locally strong compactness in fuzzifying topology and mappings.

Logic · Mathematics 2018-02-07 O. R. Sayed , Adem Kilicman

The paper deals with dynamics of expanding Lorenz maps, which appear in a natural way as Poincar\`e maps in geometric models of well-known Lorenz attractor. Using both analytical and symbolic approaches, we study connections between…

Dynamical Systems · Mathematics 2024-08-29 Łukasz Cholewa , Piotr Oprocha

We introduce an axiomatization of Grothendieck sites with additional structure, and we describe sheaves that reconstruct groupoids which are internal to the site structure. This setting applies to various concrete situations, where a Nash…

Category Theory · Mathematics 2025-01-07 Karsten Bohlen

Vision Transformer models trained on large-scale datasets, although effective, often exhibit artifacts in the patch token they extract. While such defects can be alleviated by re-training the entire model with additional classification…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Haoqi Wang , Tong Zhang , Mathieu Salzmann

This paper is an attempt to better understand Tamarkin's approach of classical non-displaceability theorems of symplectic geometry, based on the microlocal theory of sheaves, a theory whose main features we recall here. If the main theorems…

Symplectic Geometry · Mathematics 2012-02-16 Stephane Guillermou , Pierre Schapira

Algebras of ultradifferentiable generalized functions are introduced. We give a microlocal analysis within these algebras related to the regularity type and the ultradifferentiable property.

Functional Analysis · Mathematics 2011-02-22 Khaled Benmeriem , Chikh Bouzar

Here we discuss optimization of mixing in finite linear and circular Rudner-Levitov lattices, i.e., Su-Schrieffer-Heeger lattices with a dissipative sublattice. We show that presence of exceptional points in the systems spectra can lead to…

Quantum Physics · Physics 2023-09-06 I. Peshko , M. Antsukh , D. Novitsky , D. Mogilevtsev

Two-dimensional sigma-models describing superstrings propagating on manifolds of special holonomy are characterized by symmetries related to covariantly constant forms that these manifolds hold, which are generally non-linear and close in a…

High Energy Physics - Theory · Physics 2007-05-23 Vid Stojevic

We investigate local field enhancement phenomena in subwavelength, {\epsilon}-near-zero (ENZ) slabs that do not exploit Fabry-P\'erot resonances. In particular, we study the linear response of engineered metamaterial slabs of finite…

Given a frame in a finite dimensional Hilbert space we construct additive perturbations which decrease the condition number of the frame. By iterating this perturbation, we introduce an algorithm that produces a tight frame in a finite…

Functional Analysis · Mathematics 2025-06-19 Oleg Asipchuk , Jacob Glidewell , Luis Rodriguez

We extend the notion of regularized integrals introduced by Li-Zhou that aims to assign finite values to divergent integrals on configuration spaces of Riemann surfaces. We then give cohomological formulations for the extended notion using…

Algebraic Geometry · Mathematics 2026-01-16 Jie Zhou

Hilbert volume is an invariant of real projective geometry. Polygons inscribed in polygons are considered for the real projective plane. The correspondence between Fock-Goncharov and Cartesian coordinates is examined. Degeneration and…

Geometric Topology · Mathematics 2020-12-21 Scott A. Wolpert

Mixup style data augmentation algorithms have been widely adopted in various tasks as implicit network regularization on representation learning to improve model generalization, which can be achieved by a linear interpolation of labeled…

Computer Vision and Pattern Recognition · Computer Science 2023-05-31 Kangjun Liu , Ke Chen , Lihua Guo , Yaowei Wang , Kui Jia

We prove results concerning the behavior of Hodge ideals under restriction to hypersurfaces or fibers of morphisms, and addition. The main tool is the description of restriction functors for mixed Hodge modules by means of the…

Algebraic Geometry · Mathematics 2017-01-18 Mircea Mustata , Mihnea Popa

We consider horofunction compactifications of symmetric spaces with respect to invariant Finsler metrics. We show that any (generalized) Satake compactification can be realized as a horofunction compactification with respect to a polyhedral…

Differential Geometry · Mathematics 2018-09-24 Thomas Haettel , Anna-Sofie Schilling , Cormac Walsh , Anna Wienhard