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Related papers: A note on integrating group scheme actions

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We define an unstable equivariant motivic homotopy category for an algebraic group over a Noetherian base scheme. We show that equivariant algebraic $K$-theory is representable in the resulting homotopy category. Additionally, we establish…

Algebraic Topology · Mathematics 2015-10-19 Jeremiah Heller , Amalendu Krishna , Paul Arne Ostvaer

In this note we give a detailed proof of a result (sketched by Torsten Ekedahl in a discussion with the first author several years ago), describing complex tori admitting a rigid group action and showing explicitly their projectivity and…

Algebraic Geometry · Mathematics 2019-11-11 Fabrizio Catanese , Andreas Demleitner

In this paper, it is shown that non-isomorphic effective linear circle actions yield non-diffeomorphic differential structures on the corresponding orbit spaces.

Differential Geometry · Mathematics 2019-08-14 Suzanne Craig , Naiche Downey , Lucas Goad , Michael J. Mahoney , Jordan Watts

In the paper [Muhammad Aslam Noor, Khalida Inayat Noor, Three-step iterative methods for nonlinear equations, Applied Mathematics and Computation, 183 (2006), pp. 322-327 ], Authors presented an algorithm (\textbf{Algorithm 2.3}) and stated…

Numerical Analysis · Mathematics 2015-03-13 Laila M Assas , Fayyaz Ahmad , Malik Zaka Ullah

We describe the lower algebraic $K$-theory of the integral group ring of both the pure and full braid groups of the real projective plane $\mathbb{R}P^2$ with $3$ strings, as well as that of the integral group ring of the mapping class…

Geometric Topology · Mathematics 2025-09-03 John Guaschi , Daniel Juan-Pineda

This article provides an algebraic study of intermediate inquisitive and dependence logics. While these logics are usually investigated using team semantics, here we introduce an alternative algebraic semantics and we prove it is complete…

Logic · Mathematics 2023-03-21 Davide Emilio Quadrellaro

We build a connection between rough path theory and noncommutative algebra, and interpret the integration of geometric rough paths as an example of a non-abelian Young integration. We identify a class of slowly-varying one-forms, and prove…

Classical Analysis and ODEs · Mathematics 2021-10-01 Danyu Yang

A classification theorem is given of projective threefolds that are covered by a two-dimensional family of lines, but not by a higher dimensional family.

Algebraic Geometry · Mathematics 2007-05-23 Emilia Mezzetti , Dario Portelli

Let M be a closed connected oriented manifold admitting a non-zero degree map to a nilmanifold. In the first part of the paper we study effective finite group actions on M. In particular, we prove that Homeo(M) is Jordan, we bound the…

Geometric Topology · Mathematics 2025-06-17 Jordi Daura Serrano

We address the following question: Determine the affine cones over smooth projective varieties which admit an action of a connected algebraic group different from the standard C*-action by scalar matrices and its inverse action. We show in…

Algebraic Geometry · Mathematics 2010-01-30 Takashi Kishimoto , Yuri Prokhorov , Mikhail Zaidenberg

We develop the theory of motivic integration for formal schemes

Algebraic Geometry · Mathematics 2007-05-23 Julien Sebag

Line integration of generalized functions is studied. Second order partial differential equations with piecewise continuous and generalized variable coefficients over Cayley-Dickson algebras are investigated. Formulas for integrations of…

Complex Variables · Mathematics 2018-12-18 S. V Ludkovsky

In natural characteristic, smooth induction from an open subgroup does not always give an exact functor. In this article we initiate a study of the right derived functors, and we give applications to the non-existence of projective…

Number Theory · Mathematics 2024-02-05 Peter Schneider , Claus Sorensen

We construct a collection of numerical invariants for approximately transitive (AT) actions (of $\Z$). We use them (sometimes supplemented by other invariants to show that members of various one-parameter families of AT actions are mutually…

Dynamical Systems · Mathematics 2021-08-13 David Handelman

We prove that any commutative group scheme over an arbitrary base scheme of finite type over a field with connected fibers and admitting a relatively ample line bundle is polarizable in the sense of Ng\^o. This extends the applicability of…

Algebraic Geometry · Mathematics 2026-05-27 Giuseppe Ancona , Dragos Fratila

Defeasible logic is a rule-based nonmonotonic logic, with both strict and defeasible rules, and a priority relation on rules. We show that inference in the propositional form of the logic can be performed in linear time. This contrasts…

Artificial Intelligence · Computer Science 2009-09-29 Michael J. Maher

We explore the integration of representations from a Lie algebra to its algebraic group in positive characteristic. An integrable module is stable under the twists by group elements. Our aim is to investigate cohomological obstructions for…

Representation Theory · Mathematics 2019-10-30 Dmitriy Rumynin , Matthew Westaway

An infinite family of association schemes obtained from the general unitary groups acting transitively on the sets of isotropic vectors in the finite unitary spaces are investigated. We compute the parameters and determine the character…

Combinatorics · Mathematics 2024-07-31 Nathaniel Benjamin , Sung Yell Song

We find a family of convergent schemes of nodes for non-complete interpolatory quadrature rules.

Numerical Analysis · Mathematics 2020-02-19 U. Fidalgo , J. Olson

In this paper, all finite groups whose commuting (non-commuting) graphs can be embed on the plane, torus or projective plane are classified.