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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.

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48 results for p-adic valuation

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.

This paper provides a topological interpretation for number theoretic properties of quantum invariants of 3-manifolds. In particular, it is shown that the p-adic valuation of the quantum SO(3)-invariant of a 3-manifold M, for odd primes p, is bounded below by a linear function of the mod p first betti number of M. Shar…

1998-09-22abs ↗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.

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 ↗

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.

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 ↗

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 ↗

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 ↗

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 ↗

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 ↗

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.

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 ↗

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.

Paper introduces new actuarial-consistent valuations for insurance liabilities.

problem Valuation of insurance liabilities considering both financial and actuarial risks.
method Proposes two-step actuarial valuations and actuarial-consistent procedures.
result Actuarial-consistent valuations are equivalent to two-step actuarial valuations under coherence.

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 ↗

Market valuation duration is 175 years, but drops to 46 years during crises.

problem Understanding the duration of market valuation and its impact on returns.
method Comparing market valuation ratios and dividends to estimate duration, analyzing the discount rate effect.
result Valuation duration is negatively correlated with market returns, with a robust out-of-sample R2 of 15%.

Business cycles affect startup valuations, both directly and indirectly.

problem How do business cycles impact startup valuations?
method Structural Equation Model approach using a dataset of 1,089 venture capital investments.
result Business cycles impact startup valuations both directly and indirectly.

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 ↗

Classification of SL(n) covariant valuations on Orlicz spaces.

problem Classifying continuous SL(n) covariant valuations on Orlicz spaces.
method Complete classification without symmetric assumptions, focusing on moment matrix and a new functional in dimension two.
result The moment matrix is the only SL(n) covariant valuation for n≥3, and a new functional appears in dimension two.

We prove new kinematic formulas for tensor valuations and simplify previously known Crofton formulas by using the recently developed algebraic theory of translation invariant valuations. The heart of the paper is the computation of the Alesker-Fourier transform on the large class of spherical valuations, which is achie…

2014-02-12abs ↗pdf ↗