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We introduce a universal weight system (a function on chord diagrams satisfying the $4$-term relation) taking values in the ring of polynomials in infinitely many variables whose particular specializations are weight systems associated with…

Combinatorics · Mathematics 2024-11-19 Maxim Kazarian , Zhuoke Yang

In this short article, we prove that any automorphism of the R. Thompson's group $F$ has infinitely many twisted conjugacy classes. The result follows from the work of Matthew Brin, together with a standard facts on R. Thompson's group $F$,…

Group Theory · Mathematics 2007-05-23 Collin Bleak , Alexander Fel'shtyn , Daciberg L. Gonçalves

With every family of finitely many subsets of a finite-dimensional vector space over the Galois-field with two elements we associate a cyclic transversal polytope. It turns out that those polytopes generalize several well-known polytopes…

Combinatorics · Mathematics 2024-04-10 Jonas Frede , Volker Kaibel , Maximilian Merkert

We introduce a general theory of parametrized objects in the setting of infinity categories. Although spaces and spectra parametrized over spaces are the most familiar examples, we establish our theory in the generality of objects of a…

Algebraic Topology · Mathematics 2018-12-19 Matthew Ando , Andrew J. Blumberg , David Gepner

We continue the work of [1, 2, 3] by analyzing the equivalence relation of bi-embeddability on various classes of countable planes, most notably the class of countable non-Desarguesian projective planes. We use constructions of the second…

Logic · Mathematics 2020-10-16 Filippo Calderoni , Gianluca Paolini

We investigate the structure of ideals generated by binomials (polynomials with at most two terms) and the schemes and varieties associated to them. The class of binomial ideals contains many classical examples from algebraic geometry, and…

alg-geom · Mathematics 2008-02-03 David Eisenbud , Bernd Sturmfels

We present generalized algebraic theories corresponding to slightly modified versions of two of the type theories in our paper Type Theory with Explicit Universe Polymorphism. We first present a generalized algebraic theory for categories…

Logic in Computer Science · Computer Science 2026-03-05 Marc Bezem , Thierry Coquand , Peter Dybjer , Martín Escardó

The main goal of the present paper is the construction of twisted generalized differential cohomology theories and the comprehensive statement of its basic functorial properties. Technically it combines the homotopy theoretic approach to…

Algebraic Topology · Mathematics 2019-08-21 Ulrich Bunke , Thomas Nikolaus

We define extension $\infty$-categories for exact $\infty$-categories in terms of bifibrations. Extension $\infty$-categories are invariant when passing to the stable hull, and consequently we show that they form an $\Omega$-spectrum,…

Category Theory · Mathematics 2023-08-29 Erlend D. Børve , Paul Trygsland

X.S. Lin's original definition of twisted Alexander knot polynomial is generalized for arbitrary finitely presented groups. J. Cha's fibering obstruction theorem is generalized. The group of a nontrivial virtual knot shown by L. Kauffman to…

Geometric Topology · Mathematics 2009-08-14 Daniel S. Silver , Susan G. Williams

Universal algebra uniformly captures various algebraic structures, by expressing them as equational theories or abstract clones. The ubiquity of algebraic structures in mathematics and related fields has given rise to several variants of…

Category Theory · Mathematics 2019-11-28 Soichiro Fujii

Let X be a normal projective Q-Gorenstein variety with at worst log-terminal singularities. We prove a formula expressing the total stringy Chern class of a generic complete intersection in X via the total stringy Chern class of X. This…

Algebraic Geometry · Mathematics 2016-07-20 Victor Batyrev , Karin Schaller

We prove for residually finite groups the following long standing conjecture: the number of twisted conjugacy classes of an automorphism of a finitely generated group is equal (if it is finite) to the number of finite dimensional…

Group Theory · Mathematics 2012-05-01 Alexander Fel'shtyn , Evgenij Troitsky

In the present work, new classes of wavelet functions are presented in the framework of Clifford analysis. Firstly, some classes of new monogenic polynomials are provided based on 2-parameters weight functions. Such classes extend the well…

Classical Analysis and ODEs · Mathematics 2017-06-06 Sabrine Arfaoui , Anouar Ben Mabrouk

Kuznetsov and Polishchuk provided a general algorithm to construct exceptional collections of maximal length for homogeneous varieties of type A,B,C,D. We consider the case of the spinor tenfold and we prove that the corresponding…

Algebraic Geometry · Mathematics 2023-06-21 Riccardo Moschetti , Marco Rampazzo

The class $\mathfrak C $ relative to countably compact topological spaces and the class $\mathfrak P$ relative to pseudocompact spaces introduced by Z. Frol\'ik are naturally generalized relative to every topological property. We provide a…

General Topology · Mathematics 2015-03-10 Paolo Lipparini

The aim of this note is to show that the generalized supertrace, constructed in another paper of the author, inducing an isomorphism between the Hochschild homology of a superalgebra and that of the superalgebra of square supermatrices of a…

K-Theory and Homology · Mathematics 2009-05-28 Paul A. Blaga

Isaak Moiseevich Yaglom deduced complete classification of geometric spaces. In this work, supposed to your attention, author formalizes Yaglom's approach and constructs uniform theory of geometric spaces on analytic level. Among its…

Metric Geometry · Mathematics 2018-07-31 Alexander Popa

For a large class of possibly singular complete intersections we prove a formula for their Chern-Schwartz-MacPherson classes in terms of a single blowup along a scheme supported on the singular loci of such varieties. In the hypersurface…

Algebraic Geometry · Mathematics 2016-04-28 James Fullwood , Dongxu Wang

We construct an infinite family of real cyclotomic fields with non-trivial class group. This result generalizes the result in [1] in the sense that our family includes theirs.

Number Theory · Mathematics 2022-05-17 Om Prakash
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