Homology Of Normal Chains And Cohomology Of Charges

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Homology of Normal Chains and Cohomology of Charges

Thierry De Pauw,Robert Hardt,Washek F. Pfeffer
Homology of Normal Chains and Cohomology of Charges Book PDF

Author : Thierry De Pauw,Robert Hardt,Washek F. Pfeffer
Publisher : Unknown
Page : 115 pages
File Size : 46,9 Mb
Release : 2017
Category : Algebraic topology
ISBN : 1470437058

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Homology of Normal Chains and Cohomology of Charges by Thierry De Pauw,Robert Hardt,Washek F. Pfeffer Pdf

Cover -- Title page -- Introduction -- Chapter 1. Notation and preliminaries -- Chapter 2. Rectifiable chains -- Chapter 3. Lipschitz chains -- Chapter 4. Flat norm and flat chains -- Chapter 5. The lower semicontinuity of slicing mass -- Chapter 6. Supports of flat chains -- Chapter 7. Flat chains of finite mass -- Chapter 8. Supports of flat chains of finite mass -- Chapter 9. Measures defined by flat chains of finite mass -- Chapter 10. Products -- Chapter 11. Flat chains in compact metric spaces -- Chapter 12. Localized topology -- Chapter 13. Homology and cohomology -- Chapter 14.-bounded pairs -- Chapter 15. Dimension zero -- Chapter 16. Relation to the Čech cohomology -- Chapter 17. Locally compact spaces -- References -- Back Cover

Homology of Normal Chains and Cohomology of Charges

Th. De Pauw,R. M. Hardt,W. F. Pfeffer
Homology of Normal Chains and Cohomology of Charges Book PDF

Author : Th. De Pauw,R. M. Hardt,W. F. Pfeffer
Publisher : American Mathematical Soc.
Page : 115 pages
File Size : 46,6 Mb
Release : 2017-04-25
Category : Algebraic topology
ISBN : 9781470423353

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Homology of Normal Chains and Cohomology of Charges by Th. De Pauw,R. M. Hardt,W. F. Pfeffer Pdf

The authors consider a category of pairs of compact metric spaces and Lipschitz maps where the pairs satisfy a linearly isoperimetric condition related to the solvability of the Plateau problem with partially free boundary. It includes properly all pairs of compact Lipschitz neighborhood retracts of a large class of Banach spaces. On this category the authors define homology and cohomology functors with real coefficients which satisfy the Eilenberg-Steenrod axioms, but reflect the metric properties of the underlying spaces. As an example they show that the zero-dimensional homology of a space in our category is trivial if and only if the space is path connected by arcs of finite length. The homology and cohomology of a pair are, respectively, locally convex and Banach spaces that are in duality. Ignoring the topological structures, the homology and cohomology extend to all pairs of compact metric spaces. For locally acyclic spaces, the authors establish a natural isomorphism between their cohomology and the Čech cohomology with real coefficients.

Geometry and Topology of Submanifolds and Currents

Weiping Li,Shihshu Walter Wei
Geometry and Topology of Submanifolds and Currents Book PDF

Author : Weiping Li,Shihshu Walter Wei
Publisher : American Mathematical Soc.
Page : 186 pages
File Size : 54,9 Mb
Release : 2015-08-25
Category : Geometry
ISBN : 9781470415563

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Geometry and Topology of Submanifolds and Currents by Weiping Li,Shihshu Walter Wei Pdf

he papers in this volume are mainly from the 2013 Midwest Geometry Conference, held October 19, 2013, at Oklahoma State University, Stillwater, OK, and partly from the 2012 Midwest Geometry Conference, held May 12-13, 2012, at the University of Oklahoma, Norman, OK. The papers cover recent results on geometry and topology of submanifolds. On the topology side, topics include Plateau problems, Voevodsky's motivic cohomology, Reidemeister zeta function and systolic inequality, and freedom in 2- and 3-dimensional manifolds. On the geometry side, the authors discuss classifying isoparametric hypersurfaces and review Hartogs triangle, finite volume flows, nonexistence of stable p-currents, and a generalized Bernstein type problem. The authors also show that the interaction between topology and geometry is a key to deeply understanding topological invariants and the geometric problems.

On Sudakov’s Type Decomposition of Transference Plans with Norm Costs

Stefano Bianchini,Sara Daneri
On Sudakov s Type Decomposition of Transference Plans with Norm Costs Book PDF

Author : Stefano Bianchini,Sara Daneri
Publisher : American Mathematical Soc.
Page : 112 pages
File Size : 41,8 Mb
Release : 2018-02-23
Category : Decomposition (Mathematics)
ISBN : 9781470427665

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On Sudakov’s Type Decomposition of Transference Plans with Norm Costs by Stefano Bianchini,Sara Daneri Pdf

The authors consider the original strategy proposed by Sudakov for solving the Monge transportation problem with norm cost with , probability measures in and absolutely continuous w.r.t. . The key idea in this approach is to decompose (via disintegration of measures) the Kantorovich optimal transportation problem into a family of transportation problems in , where are disjoint regions such that the construction of an optimal map is simpler than in the original problem, and then to obtain by piecing together the maps . When the norm is strictly convex, the sets are a family of -dimensional segments determined by the Kantorovich potential called optimal rays, while the existence of the map is straightforward provided one can show that the disintegration of (and thus of ) on such segments is absolutely continuous w.r.t. the -dimensional Hausdorff measure. When the norm is not strictly convex, the main problems in this kind of approach are two: first, to identify a suitable family of regions on which the transport problem decomposes into simpler ones, and then to prove the existence of optimal maps. In this paper the authors show how these difficulties can be overcome, and that the original idea of Sudakov can be successfully implemented. The results yield a complete characterization of the Kantorovich optimal transportation problem, whose straightforward corollary is the solution of the Monge problem in each set and then in . The strategy is sufficiently powerful to be applied to other optimal transportation problems.

The Stability of Cylindrical Pendant Drops

John McCuan
The Stability of Cylindrical Pendant Drops Book PDF

Author : John McCuan
Publisher : American Mathematical Soc.
Page : 109 pages
File Size : 43,5 Mb
Release : 2018-01-16
Category : Abelian groups
ISBN : 9781470409388

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The Stability of Cylindrical Pendant Drops by John McCuan Pdf

The author considers the stability of certain liquid drops in a gravity field satisfying a mixed boundary condition. He also considers as special cases portions of cylinders that model either the zero gravity case or soap films with the same kind of boundary behavior.

Knot Invariants and Higher Representation Theory

Ben Webster
Knot Invariants and Higher Representation Theory Book PDF

Author : Ben Webster
Publisher : American Mathematical Soc.
Page : 141 pages
File Size : 51,6 Mb
Release : 2018-01-16
Category : Functor theory
ISBN : 9781470426507

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Knot Invariants and Higher Representation Theory by Ben Webster Pdf

The author constructs knot invariants categorifying the quantum knot variants for all representations of quantum groups. He shows that these invariants coincide with previous invariants defined by Khovanov for sl and sl and by Mazorchuk-Stroppel and Sussan for sl . The author's technique is to study 2-representations of 2-quantum groups (in the sense of Rouquier and Khovanov-Lauda) categorifying tensor products of irreducible representations. These are the representation categories of certain finite dimensional algebras with an explicit diagrammatic presentation, generalizing the cyclotomic quotient of the KLR algebra. When the Lie algebra under consideration is sl , the author shows that these categories agree with certain subcategories of parabolic category for gl .

Systems of Transversal Sections Near Critical Energy Levels of Hamiltonian Systems in R

Naiara V. de Paulo,Pedro A. S. Salomão
Systems of Transversal Sections Near Critical Energy Levels of Hamiltonian Systems in R Book PDF

Author : Naiara V. de Paulo,Pedro A. S. Salomão
Publisher : American Mathematical Soc.
Page : 105 pages
File Size : 47,7 Mb
Release : 2018-03-19
Category : Hamiltonian systems
ISBN : 9781470428013

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Systems of Transversal Sections Near Critical Energy Levels of Hamiltonian Systems in R by Naiara V. de Paulo,Pedro A. S. Salomão Pdf

In this article the authors study Hamiltonian flows associated to smooth functions R R restricted to energy levels close to critical levels. They assume the existence of a saddle-center equilibrium point in the zero energy level . The Hamiltonian function near is assumed to satisfy Moser's normal form and is assumed to lie in a strictly convex singular subset of . Then for all small, the energy level contains a subset near , diffeomorphic to the closed -ball, which admits a system of transversal sections , called a foliation. is a singular foliation of and contains two periodic orbits and as binding orbits. is the Lyapunoff orbit lying in the center manifold of , has Conley-Zehnder index and spans two rigid planes in . has Conley-Zehnder index and spans a one parameter family of planes in . A rigid cylinder connecting to completes . All regular leaves are transverse to the Hamiltonian vector field. The existence of a homoclinic orbit to in follows from this foliation.

Boundary Conditions and Subelliptic Estimates for Geometric Kramers-Fokker-Planck Operators on Manifolds with Boundaries

Francis Nier
Boundary Conditions and Subelliptic Estimates for Geometric Kramers Fokker Planck Operators on Manifolds with Boundaries Book PDF

Author : Francis Nier
Publisher : American Mathematical Soc.
Page : 142 pages
File Size : 50,9 Mb
Release : 2018-03-19
Category : Electronic
ISBN : 9781470428020

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Boundary Conditions and Subelliptic Estimates for Geometric Kramers-Fokker-Planck Operators on Manifolds with Boundaries by Francis Nier Pdf

This article is concerned with the maximal accretive realizations of geometric Kramers-Fokker-Planck operators on manifolds with boundaries. A general class of boundary conditions is introduced which ensures the maximal accretivity and some global subelliptic estimates. Those estimates imply nice spectral properties as well as exponential decay properties for the associated semigroup. Admissible boundary conditions cover a wide range of applications for the usual scalar Kramer-Fokker-Planck equation or Bismut's hypoelliptic laplacian.

Property ($T$) for Groups Graded by Root Systems

Mikhail Ershov,Andrei Jaikin-Zapirain,Martin Kassabov
Property T for Groups Graded by Root Systems Book PDF

Author : Mikhail Ershov,Andrei Jaikin-Zapirain,Martin Kassabov
Publisher : American Mathematical Soc.
Page : 135 pages
File Size : 44,9 Mb
Release : 2017-09-25
Category : Root systems (Algebra)
ISBN : 9781470426040

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Property ($T$) for Groups Graded by Root Systems by Mikhail Ershov,Andrei Jaikin-Zapirain,Martin Kassabov Pdf

The authors introduce and study the class of groups graded by root systems. They prove that if is an irreducible classical root system of rank and is a group graded by , then under certain natural conditions on the grading, the union of the root subgroups is a Kazhdan subset of . As the main application of this theorem the authors prove that for any reduced irreducible classical root system of rank and a finitely generated commutative ring with , the Steinberg group and the elementary Chevalley group have property . They also show that there exists a group with property which maps onto all finite simple groups of Lie type and rank , thereby providing a “unified” proof of expansion in these groups.

Orthogonal and Symplectic -level Densities

A. M. Mason,N. C. Snaith
Orthogonal and Symplectic level Densities Book PDF

Author : A. M. Mason,N. C. Snaith
Publisher : American Mathematical Soc.
Page : 93 pages
File Size : 47,5 Mb
Release : 2018-02-23
Category : L-functions
ISBN : 9781470426859

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Orthogonal and Symplectic -level Densities by A. M. Mason,N. C. Snaith Pdf

In this paper the authors apply to the zeros of families of -functions with orthogonal or symplectic symmetry the method that Conrey and Snaith (Correlations of eigenvalues and Riemann zeros, 2008) used to calculate the -correlation of the zeros of the Riemann zeta function. This method uses the Ratios Conjectures (Conrey, Farmer, and Zimbauer, 2008) for averages of ratios of zeta or -functions. Katz and Sarnak (Zeroes of zeta functions and symmetry, 1999) conjecture that the zero statistics of families of -functions have an underlying symmetry relating to one of the classical compact groups , and . Here the authors complete the work already done with (Conrey and Snaith, Correlations of eigenvalues and Riemann zeros, 2008) to show how new methods for calculating the -level densities of eigenangles of random orthogonal or symplectic matrices can be used to create explicit conjectures for the -level densities of zeros of -functions with orthogonal or symplectic symmetry, including all the lower order terms. They show how the method used here results in formulae that are easily modified when the test function used has a restricted range of support, and this will facilitate comparison with rigorous number theoretic -level density results.

Entire Solutions for Bistable Lattice Differential Equations with Obstacles

Aaron Hoffman,Hermen Hupke,E. S. Van Vleck
Entire Solutions for Bistable Lattice Differential Equations with Obstacles Book PDF

Author : Aaron Hoffman,Hermen Hupke,E. S. Van Vleck
Publisher : American Mathematical Soc.
Page : 119 pages
File Size : 53,6 Mb
Release : 2018-01-16
Category : Differential equations
ISBN : 9781470422011

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Entire Solutions for Bistable Lattice Differential Equations with Obstacles by Aaron Hoffman,Hermen Hupke,E. S. Van Vleck Pdf

The authors consider scalar lattice differential equations posed on square lattices in two space dimensions. Under certain natural conditions they show that wave-like solutions exist when obstacles (characterized by “holes”) are present in the lattice. Their work generalizes to the discrete spatial setting the results obtained in Berestycki, Hamel, and Matuno (2009) for the propagation of waves around obstacles in continuous spatial domains. The analysis hinges upon the development of sub and super-solutions for a class of discrete bistable reaction-diffusion problems and on a generalization of a classical result due to Aronson and Weinberger that concerns the spreading of localized disturbances.

Sobolev, Besov and Triebel-Lizorkin Spaces on Quantum Tori

Xiao Xiong,Quanhua Xu,Zhi Yin
Sobolev Besov and Triebel Lizorkin Spaces on Quantum Tori Book PDF

Author : Xiao Xiong,Quanhua Xu,Zhi Yin
Publisher : American Mathematical Soc.
Page : 118 pages
File Size : 46,7 Mb
Release : 2018-03-19
Category : Electronic
ISBN : 9781470428068

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Sobolev, Besov and Triebel-Lizorkin Spaces on Quantum Tori by Xiao Xiong,Quanhua Xu,Zhi Yin Pdf

This paper gives a systematic study of Sobolev, Besov and Triebel-Lizorkin spaces on a noncommutative -torus (with a skew symmetric real -matrix). These spaces share many properties with their classical counterparts. The authors prove, among other basic properties, the lifting theorem for all these spaces and a Poincaré type inequality for Sobolev spaces.

Spatially Independent Martingales, Intersections, and Applications

Pablo Shmerkin,Ville Suomala
Spatially Independent Martingales Intersections and Applications Book PDF

Author : Pablo Shmerkin,Ville Suomala
Publisher : American Mathematical Soc.
Page : 102 pages
File Size : 50,7 Mb
Release : 2018-02-22
Category : Intersection theory (Mathematics)
ISBN : 9781470426880

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Spatially Independent Martingales, Intersections, and Applications by Pablo Shmerkin,Ville Suomala Pdf

The authors define a class of random measures, spatially independent martingales, which we view as a natural generalization of the canonical random discrete set, and which includes as special cases many variants of fractal percolation and Poissonian cut-outs. The authors pair the random measures with deterministic families of parametrized measures , and show that under some natural checkable conditions, a.s. the mass of the intersections is Hölder continuous as a function of . This continuity phenomenon turns out to underpin a large amount of geometric information about these measures, allowing us to unify and substantially generalize a large number of existing results on the geometry of random Cantor sets and measures, as well as obtaining many new ones. Among other things, for large classes of random fractals they establish (a) very strong versions of the Marstrand-Mattila projection and slicing results, as well as dimension conservation, (b) slicing results with respect to algebraic curves and self-similar sets, (c) smoothness of convolutions of measures, including self-convolutions, and nonempty interior for sumsets, and (d) rapid Fourier decay. Among other applications, the authors obtain an answer to a question of I. Łaba in connection to the restriction problem for fractal measures.

La Formule des Traces Locale Tordue

Colette Moeglin,Jean-Loup Waldspurger
La Formule des Traces Locale Tordue Book PDF

Author : Colette Moeglin,Jean-Loup Waldspurger
Publisher : American Mathematical Soc.
Page : 180 pages
File Size : 55,6 Mb
Release : 2018-02-23
Category : Algebraic number theory
ISBN : 9781470427719

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La Formule des Traces Locale Tordue by Colette Moeglin,Jean-Loup Waldspurger Pdf

A note to readers: This book is in French. The text has two chapters. The first one, written by Waldspurger, proves a twisted version of the local trace formula of Arthur over a local field. This formula is an equality between two expressions, one involving weighted orbital integrals, the other one involving weighted characters. The authors follow Arthur's proof, but the treatement of the spectral side is more complicated in the twisted situation. They need to use the combinatorics of the “Morning Seminar”. The authors' local trace formula has the same consequences as in Arthur's paper on elliptic characters. The second chapter, written by Moeglin, gives a symmetric form of the local trace formula as in Arthur's paper on Fourier Transform of Orbital integral and describes any twisted orbital integral, in the p-adic case, as integral of characters.

Maximal Abelian Sets of Roots

R. Lawther
Maximal Abelian Sets of Roots Book PDF

Author : R. Lawther
Publisher : American Mathematical Soc.
Page : 219 pages
File Size : 41,6 Mb
Release : 2018-01-16
Category : Abelian groups
ISBN : 9781470426798

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Maximal Abelian Sets of Roots by R. Lawther Pdf

In this work the author lets be an irreducible root system, with Coxeter group . He considers subsets of which are abelian, meaning that no two roots in the set have sum in . He classifies all maximal abelian sets (i.e., abelian sets properly contained in no other) up to the action of : for each -orbit of maximal abelian sets we provide an explicit representative , identify the (setwise) stabilizer of in , and decompose into -orbits. Abelian sets of roots are closely related to abelian unipotent subgroups of simple algebraic groups, and thus to abelian -subgroups of finite groups of Lie type over fields of characteristic . Parts of the work presented here have been used to confirm the -rank of , and (somewhat unexpectedly) to obtain for the first time the -ranks of the Monster and Baby Monster sporadic groups, together with the double cover of the latter. Root systems of classical type are dealt with quickly here; the vast majority of the present work concerns those of exceptional type. In these root systems the author introduces the notion of a radical set; such a set corresponds to a subgroup of a simple algebraic group lying in the unipotent radical of a certain maximal parabolic subgroup. The classification of radical maximal abelian sets for the larger root systems of exceptional type presents an interesting challenge; it is accomplished by converting the problem to that of classifying certain graphs modulo a particular equivalence relation.