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We present a covering conjecture that we expect to be true below superstrong cardinals. We then show that the conjecture is true in hod mice. This work is a continuation of the work that started in Covering with Universally Baire Functions…

Logic · Mathematics 2021-10-13 Grigor Sargsyan

Cubical type theory provides a constructive justification of homotopy type theory. A crucial ingredient of cubical type theory is a path lifting operation which is explained computationally by induction on the type involving several…

Logic · Mathematics 2023-06-22 Thierry Coquand , Simon Huber , Christian Sattler

We sketch recent interactions between model theory and a roughly 150-year old study of analytic functions involving complex analysis, algebraic topology, and number theory, centered in canonicity of universal covers. Towards this goal we…

Logic · Mathematics 2024-07-24 John T. Baldwin , Andrés Villaveces

This paper presents the main results in my Ph.D. thesis. In what follows several proofs of SCH are presented introducing a family of covering properties which implies both SCH and the failure of various forms of square. These covering…

Logic · Mathematics 2007-05-23 Matteo Viale

The current paper represents the first part: it contains the results concerning the lifting of twisted canonical sections defined on an infinitesimal neighborhood of the central fiber of a smooth, proper K\"ahler family which verify a…

Algebraic Geometry · Mathematics 2023-03-30 Junyan Cao , Mihai Paun

We explore the canonical Grothendieck topology and a new homotopical analog. First we discuss some background information, including defining a new 2-category called the Index-Functor Category and a sieve generalization. Then we discuss a…

Algebraic Topology · Mathematics 2019-09-10 Cynthia Lester

We give a variational proof of the existence and uniqueness of a convex cap with the given upper boundary. The proof uses the concavity of the total scalar curvature functional on the space of generalized convex caps. As a byproduct, we…

Differential Geometry · Mathematics 2007-05-23 Ivan Izmestiev

We determine a strong form of the decomposition theorem for proper toric maps over finite fields.

Algebraic Geometry · Mathematics 2015-06-12 Mark Andrea de Cataldo

This work uses mostly model-theoretic methods to establish new proof-theoretic theorems about several axiomatic theories of truth over KP (Kripke-Platek set theory) and stronger theories, especially ZF (Zermelo-Fraenkel set theory).

Logic · Mathematics 2026-05-05 Ali Enayat

We give a simpler and more conceptual proof that a morphism from a 3-fold to a surface, over an algebraically closed field of characteristic 0, can be made into a toroidal morphism by sequences of blow ups of nonsingular subvarieties above…

Algebraic Geometry · Mathematics 2012-06-20 Steven Dale Cutkosky

A new generalization of the classical separate algebraicity theorem is suggested and proved.

alg-geom · Mathematics 2008-02-03 R. A. Sharipov , E. N. Tzyganov

This paper gives a systematic construction of certain covers of finite semigroups. These covers will be used in future work on the complexity of finite semigroups.

Group Theory · Mathematics 2019-04-03 John L. Rhodes , Benjamin Steinberg , J. C. Birget

A generalized canonical form of multi-time dynamical theories is proposed. This form is a starting point for a modified canonical quantization procedure of theories based on a quantum version of the action principle. As an example, the…

Quantum Physics · Physics 2009-10-13 Natalia Gorobey , Alexander Lukyanenko , Inna Lukyanenko

A recent paper promises new constructions that may make it possible to achieve covariance in spherically symmetric models of loop quantum gravity. This claim is contrary to the discovery of several stubborn obstacles to covariance uncovered…

General Relativity and Quantum Cosmology · Physics 2023-01-05 Martin Bojowald

We introduce and study some variants of a notion of canonical set theoretical truth. By this, we mean truth in a transitive proper class model $M$ of ZFC that is uniquely characterized by some $\in$-formula. We show that there are…

Logic · Mathematics 2026-05-19 Merlin Carl , Philipp Schlicht

We present a characterization for the continuous, isotropic and positive definite kernels on a product of spheres along the lines of a classical result of I. J. Schoenberg on positive definiteness on a single sphere. We also discuss a few…

Classical Analysis and ODEs · Mathematics 2017-02-22 J. C. Guella , V. A. Menegatto , Ana P. Peron

We revisit Ahlfors theory of covering surfaces thanks to Stokes theorem.

Complex Variables · Mathematics 2013-11-08 Julien Duval

Given a smooth affine curve X over a field k of positive characteristic, and an overconvergent F-isocrystal on X, we prove after replacing k by a finite purely inseparable extension, there exists a finite separable cover of X, the pullback…

Number Theory · Mathematics 2007-05-23 Kiran S. Kedlaya

A new construction, with more visible canonical features, of a qKdV equation in a q-Virasoro context is exhibited.

Quantum Algebra · Mathematics 2007-05-23 Robert Carroll

We introduce the notion of a `canonical' splitting over Z or ZxZ for a finitely generated group G. We show that when G happens to be the fundamental group of an orientable Haken manifold M with incompressible boundary, then the…

Geometric Topology · Mathematics 2007-05-23 Peter Scott , Gadde Swarup