Results 1 to 10 of about 17,089 (73)

Universal Lefschetz fibrations and Lefschetz cobordisms [PDF]

, 2014
We construct universal Lefschetz fibrations, defined in analogy with classical universal bundles. We also introduce the cobordism groups of Lefschetz fibrations, and we see how these groups are quotients of the singular bordism groups via the universal ...
Zuddas, Daniele
core   +4 more sources

Existence of equilibria in countable games: an algebraic approach

, 2013
Although mixed extensions of finite games always admit equilibria, this is not the case for countable games, the best-known example being Wald's pick-the-larger-integer game.
Aliprantis, Baer, Bhaskara Rao, Candogan, Carmona, Carmona, Carmona, Chou, Cotter, Dasgupta, Day, de Finetti, de Finetti, de Finetti, Debreu, Dubins, Dunford, Fan, Følner, Glicksberg, Haar, Harris, Heath, Hildebrandt, Kindler, Maitra, Maitra, Marco Scarsini, Marinacci, Merkle, Morrison, Nash, Nash, Neumann, Olʼšanskiĭ, Paterson, Reny, Savage, Schervish, Simon, Simon, Stinchcombe, Stinchcombe, Valerio Capraro, von Neumann, Wald, Yanovskaya   +46 more
core   +1 more source

SYK-like Tensor Models on the Lattice

, 2017
We study large $N$ tensor models on the lattice without disorder. We introduce techniques which can be applied to a wide class of models, and illustrate it by studying some specific rank-3 tensor models. In particular, we study Klebanov-Tarnopolsky model
Narayan, Prithvi, Yoon, Junggi
core   +1 more source

The multiplicativity of fixed point invariants

, 2013
We prove two general factorization theorems for fixed-point invariants of fibrations: one for the Lefschetz number and one for the Reidemeister trace. These theorems imply the familiar multiplicativity results for the Lefschetz and Nielsen numbers of a ...
Citterio, Dold, Jiang, Kate Ponto, Lewis, May, Michael Shulman, Ponto, Ponto, Shulman, You   +10 more
core   +1 more source

Edge dislocations in crystal structures considered as traveling waves of discrete models [PDF]

, 2003
The static stress needed to depin a 2D edge dislocation, the lower dynamic stress needed to keep it moving, its velocity and displacement vector profile are calculated from first principles.
A. Carpio, A. I. Landau, A. I. Landau, D. Hull, F. R. N. Nabarro, J. P. Hirth, L. L. Bonilla, L. B. Freund, L. D. Landau, N. G. van Kampen   +9 more
core   +3 more sources

Coherent states and geometry on the Siegel-Jacobi disk

, 2014
The coherent state representation of the Jacobi group $G^J_1$ is indexed with two parameters, $\mu (=\frac{1}{\hbar})$, describing the part coming from the Heisenberg group, and $k$, characterizing the positive discrete series representation of $\text{SU}
Berceanu, Stefan
core   +1 more source

The Bulk Dual of SYK: Cubic Couplings

, 2017
The SYK model, a quantum mechanical model of $N \gg 1$ Majorana fermions $\chi_i$, with a $q$-body, random interaction, is a novel realization of holography. It is known that the AdS$_2$ dual contains a tower of massive particles, yet there is at present
Gross, David J., Rosenhaus, Vladimir
core   +1 more source

Training novel phonemic contrasts: a comparison of identification and oddity discrimination training [PDF]

, 2009
High Variability Pronunciation Training (HVPT) is a highly successful alternative to ASR-based pronunciation training. It has been demonstrated that HVPT is effective in teaching the perception of non-native phonemic contrasts, and that this skill ...
Handley, Zöe, Moore, Dave, Sharples, Mike   +2 more
core  

Global Dimension of Polynomial Rings in Partially Commuting Variables

, 2008
For any free partially commutative monoid $M(E,I)$, we compute the global dimension of the category of $M(E,I)$-objects in an Abelian category with exact coproducts.
A.A. Husainov, A.A. Husainov, A.A. Husainov, A.A. Khusainov, A.A. Khusainov, A.A. Khusainov, Ahmet A. Husainov, B. Mitchell, B. Mitchell, B. Mitchell, B. Mitchell, C.A. Weibel, H.-J. Baues, J. Leech, L.Y. Polyakova, N. Bourbaki, P. Gabriel, S. Mac Lane, U. Oberst, V. Diekert, V. Diekert   +20 more
core   +2 more sources

Suzuki functor at the critical level

, 2020
In this paper we define and study a critical-level generalization of the Suzuki functor, relating the affine general linear Lie algebra to the rational Cherednik algebra of type A.
Przezdziecki, Tomasz
core   +1 more source