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We present an overview of some recent developments in the theory of generalized formal series, grounded in diffeological geometric framework. These constructions aim to offer new tools for understanding infinite-dimensional phenomena in…

History and Overview · Mathematics 2025-08-25 Jean-Pierre Magnot

We define secondary theories and characteristic classes for simplicial smooth manifolds generalizing Karoubi's multiplicative K-theory and multiplicative cohomology groups for smooth manifolds. As a special case we get versions of the…

Algebraic Topology · Mathematics 2009-03-30 Marcello Felisatti , Frank Neumann

The purpose of the notes is to reiterate and expand the viewpoint, outlined in the paper math.AG/0110142 of T. Coates and the author, which recasts the concept of Frobenius manifold in terms of linear symplectic geometry and exposes the…

Algebraic Geometry · Mathematics 2007-05-23 Alexander Givental

We deal with the symmetries of a (2-term) graded vector space or bundle. Our first theorem shows that they define a (strict) Lie 2-groupoid in a natural way. Our second theorem explores the construction of nerves for Lie 2-categories,…

Differential Geometry · Mathematics 2020-05-05 Matias del Hoyo , Davide Stefani

In this article, we are considering the Hessian of the area functional in a non-Darboux chart. This does not seem to have been considered before and leads to an interesting new mathematical structure which we introduce in this article and…

Symplectic Geometry · Mathematics 2026-04-02 Urs Frauenfelder , Joa Weber

The aim of this paper is twofold. The first is to give a quantitative version of Schmidt's subspace theorem for arbitrary families of higher degree polynomials. The second is to give a generalization of the subspace theorem for arbitrary…

Number Theory · Mathematics 2023-08-01 Si Duc Quang

Inspired by Kronheimer and Mrowka's approach to monopole Floer homology, we develop a model for $\mathbb{Z}/2$-equivariant symplectic Floer theory using equivariant almost complex structures, which admits a localization map to a twisted…

Symplectic Geometry · Mathematics 2019-10-29 Tim Large

Work of Hofer--Wysocki--Zehnder has shown that many spaces of pseudoholomorphic curves that arise when studying symplectic manifolds may be described as the zero set of a polyfold Fredholm section. This framework has many analytic…

Symplectic Geometry · Mathematics 2024-06-24 Dusa McDuff , Katrin Wehrheim

Floer field theory is a construction principle for e.g. 3-manifold invariants via decomposition in a bordism category and a functor to the symplectic category, and is conjectured to have natural 4-dimensional extensions. This survey…

Symplectic Geometry · Mathematics 2016-02-17 Katrin Wehrheim

We introduce an asymmetric operator of generalised translation, define the generalised modulus of smoothness by its means, and obtain the direct and inverse theorems in approximation theory for it.

Functional Analysis · Mathematics 2012-08-31 Mikhail K. Potapov , Faton M. Berisha

See http://www.math.msu.edu/~abbas or Wiley preprint server.

Symplectic Geometry · Mathematics 2007-05-23 Casim Abbas

This is a paper in a series that studies smooth relative Lie algebra homologies and cohomologies based on the theory of formal manifolds and formal Lie groups. In a previous paper, we introduce the notion of formal manifolds and develop the…

Functional Analysis · Mathematics 2024-07-15 Fulin Chen , Binyong Sun , Chuyun Wang

This article presents simple and easy proofs of the Implicit Function Theorem and the Inverse Function Theorem, in this order, both of them on a finite-dimensional Euclidean space, that employ only the Intermediate Value Theorem and the…

Classical Analysis and ODEs · Mathematics 2022-02-16 Oswaldo Rio Branco de Oliveira

Generalized Feller theory provides an important analog to Feller theory beyond locally compact state spaces. This is very useful for solutions of certain stochastic partial differential equations, Markovian lifts of fractional processes, or…

Probability · Mathematics 2023-08-09 Christa Cuchiero , Tonio Möllmann , Josef Teichmann

We give a complete classification (up to smooth homotopy) of finitely summable Fredholm representations (Fredholm modules) over higher rank groups and lattices. Our results are a direct consequence of work of Bader, Furman, Gelander and…

Operator Algebras · Mathematics 2008-06-18 Michael Puschnigg

The global constraints on chaotic dynamics induced by the analyticity of smooth flows are used to dispense with individual periodic orbits and derive infinite families of exact sum rules for several simple dynamical systems. The associated…

chao-dyn · Physics 2009-10-30 Predrag Cvitanovic , Kim Hansen , Juri Rolf , Gabor Vattay

In this paper, we prove a generalization of the Schmidt's subspace theorem for polynomials of higher degree in subgeneral position with respect to a projective variety over a number field. Our result improves and generalizes the previous…

Number Theory · Mathematics 2022-11-16 Si Duc Quang

The purpose of this paper is to present a solution to perhaps the final remaining case in the line of study concerning the generalization of Forelli's theorem on the complex analyticity of the functions that are: (1) $\mathcal{C}^\infty$…

Complex Variables · Mathematics 2014-02-27 Jae-Cheon Joo , Kang-Tae Kim , Gerd Schmalz

This is the second of three papers about the Compression Theorem. We give proofs of Gromov's theorem on directed embeddings [M Gromov, Partial differential relations, Springer--Verlag (1986); 2.4.5 C'] and of the Normal Deformation Theorem…

Geometric Topology · Mathematics 2014-11-11 Colin Rourke , Brian Sanderson

We introduce in this paper a field theory on symplectic manifolds that are fibered over a real surface with interior marked points and cylindrical ends. We assign to each such object a morphism between certain tensor products of quantum and…

Symplectic Geometry · Mathematics 2014-11-11 Francois Lalonde