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A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,695 papers · 148 categories

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48 results for $p$-adic limits

The paper studies pp-adic limits of class numbers in Zp\mathbb{Z}_p-extensions and covers.

problem Understanding pp-adic limits of class numbers in Zp\mathbb{Z}_p-extensions and covers.
method Arithmetic topology, explicit formula for pp-adic limit of pp-power-th cyclic resultants, investigations of knots and elliptic curves.
result Established explicit formula for pp-adic limit of pp-power-th cyclic resultants.

In this paper we define the pp-adic framed braid group F,n{\mathcal F}_{\infty,n}, arising as the inverse limit of the modular framed braids and we give topological generators for F,n{\mathcal F}_{\infty, n}. We also give geometric interpretations for the pp-adic framed braids. We then construct a pp-adic Yokonuma-Hec…

2006-04-10abs ↗pdf ↗

The Yokonuma-Hecke algebras are quotients of the modular framed braid group and they support Markov traces. In this paper, which is sequel to Juyumaya and Lambropoulou (2007), we explore further the structures of the pp-adic framed braids and the pp-adic Yokonuma-Hecke algebras constructed in Juyumaya and Lambropoulo…

2009-05-22abs ↗pdf ↗

Develops Weil bundles over \( p \)-adic manifolds for arithmetic geometry.

problem Connecting differential calculus and arithmetic geometry over \( p \)-adic fields.
method Systematic theory of Weil bundles, developing analytic structures.
result Establishes canonical analytic structures on Weil bundles and their cohomological comparison.

This paper reformulates the pp-adic Littlewood Conjecture using infinite loops.

problem The pp-adic Littlewood Conjecture in number theory.
method Introducing infinite loops mod nn and linking them to the conjecture.
result A real number αα is a counterexample to the pp-adic Littlewood Conjecture if and only if pkαp^kα is an infinite loop mod pmp^m for all kk.

This paper formalizes manifolds in positive characteristic varieties.

problem Establishing l-adic formal manifold structures on positive characteristic varieties.
method Develops and proves the existence of l-adic formal manifold structures and abelianized Galois symmetries.
result Proves l-adic homotopic equivalence and l-local lifting for simply-connected varieties.

Let pp be a prime number. We develop a theory of pp-adic Mahler measure of polynomials and apply it to the study of Z\mathbb{Z}-covers of rational homology 3-spheres branched over links. We obtain a pp-adic analogue of the asymptotic formula of the torsion homology growth and a balance formula among the leading coe…

2017-02-13abs ↗pdf ↗

We give a brief overview of the theory of complex dimensions of real (archimedean) fractal strings via an illustrative example, the ordinary Cantor string, and a detailed survey of the theory of p-adic (nonarchimedean) fractal strings and their complex dimensions. Moreover, we present an explicit volume formula for the…

2011-05-15abs ↗pdf ↗

A conceptual framework for cluster analysis from the viewpoint of p-adic geometry is introduced by describing the space of all dendrograms for n datapoints and relating it to the moduli space of p-adic Riemannian spheres with punctures using a method recently applied by Murtagh (2004b). This method embeds a dendrogram …

2007-07-27abs ↗pdf ↗

A new multiagent model of the stock market is formulated that contains four states in which the agents may be located. Next, the model is reformulated in the language of the functional integral containing fluctuations of prices and quantities of cash flows. It is shown that in the functional integral of that type descr…

2013-10-31abs ↗pdf ↗

Dendrograms used in data analysis are ultrametric spaces, hence objects of nonarchimedean geometry. It is known that there exist pp-adic representation of dendrograms. Completed by a point at infinity, they can be viewed as subtrees of the Bruhat-Tits tree associated to the pp-adic projective line. The implications a…

2007-07-24abs ↗pdf ↗

In this paper we study compacta Y that are resolvable by a free p-adic action on a compactum of a lower dimension and focus on compacta Y whose cohomological dimension with respect to the group Z[1/p] is 1.

2019-09-27abs ↗pdf ↗

Raymond and Wiliams constructed an action of the p-adic integers on an n-dimensional compactum, n>1, with the orbit space of dimension n+2. The author earlier presented a simplified approach for constructing such an action. In this paper we generalize this approach to show that for every n>1, an (n+2)-dimensional compa…

2019-10-01abs ↗pdf ↗

Raymond and Wiliams in "Examples of p-adic transformation groups", Ann. of Math. (2) 78 (1963) 92-106, constructed an action of the p-adic integers on an n-dimensional compactum, n>1, with the orbit space of dimension n+2. We present a simpler construction of such an example.

2019-09-27abs ↗pdf ↗

We study the asymptotic growth of Betti numbers in tower of finite covers and provide simple proofs of approximation results, which were previously obtained by Calegari-Emerton, in the generality of arbitrary p-adic analytic towers of covers. Further, we also obtain partial results about arbitrary pro-pp towers.

2012-04-15abs ↗pdf ↗

In this paper we represent the classical braids in the Yokonuma--Hecke and the adelic Yokonuma--Hecke algebras. More precisely, we define the completion of the framed braid group and we introduce the adelic Yokonuma--Hecke algebras, in analogy to the pp--adic framed braids and the pp--adic Yokonuma--Hecke algebras in…

2009-09-14abs ↗pdf ↗

We suggest to use the Hall-Littlewood version of Rosso-Jones formula to define the germs of pp-adic HOMFLY-PT polynomials for torus knots [m,n][m,n], which possess at least the [m,n][n,m][m,n] \longleftrightarrow [n,m] topological invariance. This calls for generalizations to other knot families and is a challenge for several br…

2015-09-16abs ↗pdf ↗

New groups can't be fundamental groups of symplectic Calabi-Yau manifolds.

problem Proving certain groups cannot be fundamental groups of symplectic Calabi-Yau manifolds.
method Using the method of Friedl and Vidussi, they showed these groups cannot be fundamental groups of SCY manifolds.
result The Lodha--Moore groups and their nn-adic generalizations cannot be fundamental groups of any SCY manifold.

We consider compact, aspherical solenoids obtained as the inverse limit of a system of CW~complexes and covering maps. This includes PP-adic solenoids, as well as the universal hyperbolic solenoid of Teichmüller theory. Using ideas from shape theory, we classify maps between such solenoids up to homotopy, and we prove…

2010-09-28abs ↗pdf ↗

We describe in this paper a geometric construction in the projective p-adic plane that gives, together with a suitable notion of p-adic convexity, some open subsets of P 2 .Q p / naturally endowed with a "Hilbert" distance and a transitive action of PGL.2; Q p / by isometries. ese open sets are natural analogues of the…

2016-10-04abs ↗pdf ↗

Levine defined the rational algebraic knot concordance group and proved that each nontrivial element is of order two, of order four, or of infinite order. The determination of the order of an element depends on a p-adic analysis for all primes p. Here we develop effective means to determine the order of any element tha…

2008-06-18abs ↗pdf ↗

Solves generalized twisted rabbit problems for higher degree polynomials.

problem When a quadratic polynomial is twisted by a cyclic subgroup, what polynomial is equivalent?
method Uses d2d^2-adic expansion instead of 4-adic for higher degree polynomials.
result Provides a solution that depends on the d2d^2-adic expansion of the power of the mapping class element.

Let p and l be two distinct prime numbers and let G be a group. We study the asymptotic behaviour of the mod-l Betti numbers in p-adic analytic towers of finite index subgroups. If X is a finite l-group of automorphisms of G, our main theorem allows to lift lower bounds for the mod-l cohomology growth in the fixed poin…

2013-05-22abs ↗pdf ↗

The paper explores the geometry of the Spence-Kummer trilogarithm equation and its Galois analogue.

problem Investigating the geometry and functional equation of the Spence-Kummer trilogarithm.
method Using algebraic relations between polylogarithm generating series and path systems, along with tensor and homotopy criteria for functional equations.
result Derives a precise form of the Spence-Kummer equation and its Galois analogue.

We use Nathanson's gg-adic representation of integers to relate metric properties of Cayley graphs of the integers with respect to various infinite generating sets SS to problems in additive number theory. If SS consists of all powers of a fixed integer gg, we find explicit formulas for the smallest positive intege…

2017-11-02abs ↗pdf ↗

Arithmetic topology connects surface and pp-adic field studies, enabling new insights into Galois groups.

problem Understanding the relationship between surfaces and pp-adic fields through arithmetic topology.
method Uniform approach using pro-pp groups, graph of groups, and discrete splittings.
result Infinite order arithmetic Dehn twists in Galois groups, connecting to classical Dehn twists on surfaces.

We give new explicit formulas for the representations of the mapping class group of a genus one surface with one boundary component which arise from Integral TQFT. Our formulas allow one to compute the h-adic expansion of the TQFT-matrix associated to a mapping class in a straightforward way. Truncating the h-adic expa…

2009-08-19abs ↗pdf ↗

The p-adic theory of the stock market is presented. It is shown that the price dynamics is very naturally described by the adelic function. The procedure of derivation of the functional integral formulation of adelic type is derived from microscopic models using generalized supercoherent states.

2011-02-12abs ↗pdf ↗

We give a necessary condition for a closed subset of R3R^3 to be the set of critical points of some smooth function. In particular we obtain that for example neither the Whitehead continuum nor the p-adic solenoid are such a critical sets.

2016-10-06abs ↗pdf ↗

We construct certain operations on stable moduli spaces and use them to compare cohomology of moduli spaces of closed manifolds with tangential structure. We obtain isomorphisms in a stable range provided the pp-adic valuation of the Euler characteristics agree, for all primes pp not invertible in the coefficients fo…

2019-12-21abs ↗pdf ↗

Proves section conjecture for curves and surface bundles over various fields.

problem Proving Grothendieck's section conjecture for curves and surface bundles.
method Formulated and proved the section conjecture for stable graphs, used Galois cohomology classes to obstruct sections.
result Proved section conjecture for curves and surface bundles over p-adic and number fields.

We study the Chabauty compactification of two families of closed subgroups of SL(n,Qp)SL(n,\mathbb{Q}_p). The first family is the set of all parahoric subgroups of SL(n,Qp)SL(n,\mathbb{Q}_p). Although the Chabauty compactification of parahoric subgroups is well studied, we give a different and more geometric proof using various Le…

2017-11-13abs ↗pdf ↗

Study shows non-existence of almost complex structures on certain sphere bundles over complex projective spaces.

problem Existence of almost complex structures on sphere bundles over complex projective spaces.
method Chern class computations and divisibility properties of characteristic classes.
result Establishes a necessary condition for the non-existence of almost complex structures on certain bundles.

For a link LL in the 3-sphere and for a prime pp, we express the pp-primary information on the first homology group of pmp^{m}-fold branched covers of LL in terms of its pp-adic Milnor higher linking invariants, using the completed Alexander module of the pro-pp completion of the link group of LL.

2005-05-20abs ↗pdf ↗

This is the topological part of two papers on the cohomology of Kaehler groups. In this paper we show that if a linear duality group of dimension larger than 6 is the fundamental group of a compact Kaehler manifold then its second or its fourth Betti number is non-zero. As a corollary a cocompact p-adic lattice of rank…

2010-05-17abs ↗pdf ↗

This paper investigates integer multiplication of continued fractions using geometric structures. In particular, this paper shows that integer multiplication of a continued fraction can be represented by replacing one triangulation of an orbifold with another triangulation. This method is used to show that eventually p…

2018-09-25abs ↗pdf ↗