Cornered Heegaard Floer Homology
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| Author | : Christopher L Douglas |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 124 |
| Release | : 2020-02-13 |
| Genre | : Education |
| ISBN | : 1470437716 |
Bordered Floer homology assigns invariants to 3-manifolds with boundary, such that the Heegaard Floer homology of a closed 3-manifold, split into two pieces, can be recovered as a tensor product of the bordered invariants of the pieces. The authors construct cornered Floer homology invariants of 3-manifolds with codimension-2 corners and prove that the bordered Floer homology of a 3-manifold with boundary, split into two pieces with corners, can be recovered as a tensor product of the cornered invariants of the pieces.
| Author | : Andrew J. Blumberg |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 100 |
| Release | : 2020-09-28 |
| Genre | : Mathematics |
| ISBN | : 1470441780 |
The authors resolve the longstanding confusion about localization sequences in $THH$ and $TC$ and establish a specialized devissage theorem.
| Author | : Harold Rosenberg |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 62 |
| Release | : 2020-09-28 |
| Genre | : Mathematics |
| ISBN | : 1470441853 |
The authors develop a degree theory for compact immersed hypersurfaces of prescribed $K$-curvature immersed in a compact, orientable Riemannian manifold, where $K$ is any elliptic curvature function.
| Author | : Laurent Berger |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 92 |
| Release | : 2020-04-03 |
| Genre | : Education |
| ISBN | : 1470440733 |
The construction of the p-adic local Langlands correspondence for GL2(Qp) uses in an essential way Fontaine's theory of cyclotomic (φ,Γ)-modules. Here cyclotomic means that Γ=Gal(Qp(μp∞)/Qp) is the Galois group of the cyclotomic extension of Qp. In order to generalize the p-adic local Langlands correspondence to GL2(L), where L is a finite extension of Qp, it seems necessary to have at our disposal a theory of Lubin-Tate (φ,Γ)-modules. Such a generalization has been carried out, to some extent, by working over the p-adic open unit disk, endowed with the action of the endomorphisms of a Lubin-Tate group. The main idea of this article is to carry out a Lubin-Tate generalization of the theory of cyclotomic (φ,Γ)-modules in a different fashion. Instead of the p-adic open unit disk, the authors work over a character variety that parameterizes the locally L-analytic characters on oL. They study (φ,Γ)-modules in this setting and relate some of them to what was known previously.
| Author | : Pavel M. Bleher |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 144 |
| Release | : 2020-09-28 |
| Genre | : Mathematics |
| ISBN | : 1470441845 |
In this present paper, the authors consider the normal matrix model with cubic plus linear potential.
| Author | : Zhaobing Fan |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 123 |
| Release | : 2020-09-28 |
| Genre | : Mathematics |
| ISBN | : 1470441756 |
The quantum groups of finite and affine type $A$ admit geometric realizations in terms of partial flag varieties of finite and affine type $A$. Recently, the quantum group associated to partial flag varieties of finite type $B/C$ is shown to be a coideal subalgebra of the quantum group of finite type $A$.
| Author | : Rodney G. Downey |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 90 |
| Release | : 2020-09-28 |
| Genre | : Mathematics |
| ISBN | : 1470441624 |
First, there are sets with minimal weak truth table degree which bound noncomputable computably enumerable sets under Turing reducibility. Second, no set with computable enumerable Turing degree can have minimal weak truth table degree. Third, no $Delta^0_2$ set which Turing bounds a promptly simple set can have minimal weak truth table degree.
| Author | : Michael Handel |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 290 |
| Release | : 2020-05-13 |
| Genre | : Education |
| ISBN | : 1470441136 |
In this work the authors develop a decomposition theory for subgroups of Out(Fn) which generalizes the decomposition theory for individual elements of Out(Fn) found in the work of Bestvina, Feighn, and Handel, and which is analogous to the decomposition theory for subgroups of mapping class groups found in the work of Ivanov.
| Author | : Gonzalo Fiz Pontiveros |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 138 |
| Release | : 2020-04-03 |
| Genre | : Education |
| ISBN | : 1470440717 |
The areas of Ramsey theory and random graphs have been closely linked ever since Erdős's famous proof in 1947 that the “diagonal” Ramsey numbers R(k) grow exponentially in k. In the early 1990s, the triangle-free process was introduced as a model which might potentially provide good lower bounds for the “off-diagonal” Ramsey numbers R(3,k). In this model, edges of Kn are introduced one-by-one at random and added to the graph if they do not create a triangle; the resulting final (random) graph is denoted Gn,△. In 2009, Bohman succeeded in following this process for a positive fraction of its duration, and thus obtained a second proof of Kim's celebrated result that R(3,k)=Θ(k2/logk). In this paper the authors improve the results of both Bohman and Kim and follow the triangle-free process all the way to its asymptotic end.
| Author | : Cristian Gavrus |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 106 |
| Release | : 2020-05-13 |
| Genre | : Education |
| ISBN | : 147044111X |
In this paper, the authors prove global well-posedness of the massless Maxwell–Dirac equation in the Coulomb gauge on R1+d(d≥4) for data with small scale-critical Sobolev norm, as well as modified scattering of the solutions. Main components of the authors' proof are A) uncovering null structure of Maxwell–Dirac in the Coulomb gauge, and B) proving solvability of the underlying covariant Dirac equation. A key step for achieving both is to exploit (and justify) a deep analogy between Maxwell–Dirac and Maxwell-Klein-Gordon (for which an analogous result was proved earlier by Krieger-Sterbenz-Tataru, which says that the most difficult part of Maxwell–Dirac takes essentially the same form as Maxwell-Klein-Gordon.
