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Related papers: Weierstrass meets Enriques

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We introduce the Koenigs lattice, which is a new integrable reduction of the quadrilateral lattice (discrete conjugate net) and provides natural integrable discrete analogue of the Koenigs net. We construct the Darboux-type transformations…

Exactly Solvable and Integrable Systems · Physics 2015-06-26 Adam Doliwa

We investigate an interesting interplay of destructive interference due to lattice geometry and band folding due to enlargement of the Brillouin zone in generating and subsequently modifying the band topology in a twisted bilayer…

Mesoscale and Nanoscale Physics · Physics 2025-08-27 Gourab Paul , Srijata Lahiri , Kuntal Bhattacharyya , Saurabh Basu

We investigate infinite distance limits in the complex structure moduli space of F-theory compactified on K3 to eight dimensions. While this is among the simplest possible arenas to test ideas about the Swampland Distance Conjecture, it is…

High Energy Physics - Theory · Physics 2022-06-29 Seung-Joo Lee , Wolfgang Lerche , Timo Weigand

We present the classification of involutions on Enriques surfaces. We classify those into 18 types with the help of the lattice theory due to Nikulin. We also give all examples of the classification.

Algebraic Geometry · Mathematics 2013-02-19 Hiroki Ito , Hisanori Ohashi

We show several examples of integrable systems related to special K3 and rational surfaces (e.g., an elliptic K3 surface, a K3 surface given by a double covering of the projective plane, a rational elliptic surface, etc.). The construction,…

Algebraic Geometry · Mathematics 2009-10-31 Kanehisa Takasaki

It is known (work of Galluzzi, Lombardo, Dolgachev and Naruki) that there is a unique K3 surface X which corresponds to a genus 2 curve C such that X has a Shioda-Inose structure with quotient birational to the Kummer surface of the…

Algebraic Geometry · Mathematics 2013-07-05 Abhinav Kumar

We introduce K3 transitions as a geometric approach to studying canonical 3-folds. These transitions link different deformation classes of canonical 3-folds via a combination of birational contractions and smoothings. As applications, we…

Algebraic Geometry · Mathematics 2018-04-25 Stephen Coughlan

A holomorphic torsion invariant of K3 surfaces with involution was introduced by the second-named author. In this paper, we completely determine its structure as an automorphic function on the moduli space of such K3 surfaces. On every…

Algebraic Geometry · Mathematics 2018-04-20 Shouhei Ma , Ken-Ichi Yoshikawa

In this paper we study in detail the deformations introduced in [1] of the integrable structures of the AdS$_{2,3}$ integrable models. We do this by embedding the corresponding scattering matrices into the most general solutions of the…

High Energy Physics - Theory · Physics 2022-05-06 Marius de Leeuw , Anton Pribytok , Ana L. Retore , Paul Ryan

We study the structure of the invariant of K3 surfaces with involution, which we obtained using equivariant analytic torsion. It was known before that the invariant is expressed as the Petersson norm of an automorphic form on the moduli…

Algebraic Geometry · Mathematics 2010-07-19 Ken-Ichi Yoshikawa

Twistronics has received much attention as a new method to manipulate the properties of 2D van der Waals structures by introducing moir\'e patterns through a relative rotation between two layers. Here we begin a theoretical exploration of…

For an Enriques surface $S$, the non-degeneracy invariant $\mathrm{nd}(S)$ retains information on the elliptic fibrations of $S$ and its polarizations. In the current paper, we introduce a combinatorial version of the non-degeneracy…

Algebraic Geometry · Mathematics 2022-09-01 Riccardo Moschetti , Franco Rota , Luca Schaffler

The coupling between electronic excitations and lattice deformation in van der Waals ferroelectrics is governed by a competition between the electron deformation potential and the inverse piezoelectric effect. While theory predicts that…

Materials Science · Physics 2026-02-11 S. Puri , R. Rodriguez , C. Dansou , L. Bouric , A. Sheibani , C. Paillard , L. Bellaiche , H. Nakamura

The Weierstrass representation for minimal surfaces in $\mathbb{R}^3$ provides a flexible method for constructing minimal surfaces of arbitrary genus. The topological limitations of minimal surfaces interfere with this providing a more…

Differential Geometry · Mathematics 2016-04-29 Peter Connor

We propose and study a generalization of Kitaev's $\mathbb Z_2$ toric code on a square lattice with an additional global $U(1)$ symmetry. Using Quantum Monte Carlo simulation, we find strong evidence for a topologically ordered ground state…

Strongly Correlated Electrons · Physics 2023-11-28 Kai-Hsin Wu , Alexey Khudorozhkov , Guilherme Delfino , Dmitry Green , Claudio Chamon

We study involutions on K3 surfaces under conjugation by derived equivalence and more general relations, together with applications to equivariant birational geometry.

Algebraic Geometry · Mathematics 2024-08-02 Brendan Hassett , Yuri Tschinkel

We present a systematic study of threefolds fibred by K3 surfaces that are mirror to sextic double planes. There are many parallels between this theory and the theory of elliptic surfaces. We show that the geometry of such threefolds is…

Algebraic Geometry · Mathematics 2023-06-22 Remkes Kooistra , Alan Thompson

We explicitly construct modular forms on a $4$-dimensional bounded symmetric domain of type $IV$ based on the variation of the Hodge structures of $K3$ surfaces. We study the ring of our modular forms. Because of the Kneser conditions of…

Algebraic Geometry · Mathematics 2020-09-11 Atsuhira Nagano

We study the class of complex algebraic K3 surfaces admitting an embedding of H+E8+E8 inside the Neron-Severi lattice. These special K3 surfaces are classified by a pair of modular invariants, in the same manner that elliptic curves over…

Algebraic Geometry · Mathematics 2007-05-23 Adrian Clingher , Charles F. Doran

We study the variation of the Enriquez connection for higher genus polylogarithms under degenerations of Riemann surfaces with marked points, and show that this connection becomes the connection constructed by the author for degenerating…

Algebraic Geometry · Mathematics 2025-12-16 Takashi Ichikawa