1.7k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Technion – Israel Institute of TechnologyIL151 papers
- Oranim Academic College of EducationIL134 papers
- Tel Aviv UniversityIL55 papers
- Heidelberg UniversityDE36 papers
- Carmel (Israel)IL29 papers
- Columbia UniversityUS25 papers
- Massachusetts Institute of TechnologyUS25 papers
- National Research University Higher School of EconomicsRU25 papers
- University of AmsterdamNL22 papers
- Hebrew University of JerusalemIL21 papers
- Princeton UniversityUS21 papers
- Centre National de la Recherche ScientifiqueFR20 papers
18 papers · 1 filter
Reduction and submanifolds of generalized complex manifolds
Izu Vaisman
We recall the presentation of the generalized, complex structures by classical tensor fields, while noticing that one has a similar presentation and the same integrability conditio…
A note on the Coulomb branch of susy Yang-Mills
Daniel Kabat, Gilad Lifschytz
We compute the force between oppositely charged W bosons in the large N limit of Yang-Mills with 16 supercharges broken to SU(N) x U(1) by a finite Higgs vev. We clarify some issue…
Explaining the unobserved: why quantum mechanics is not only about information
Amit Hagar, Meir Hemmo
A remarkable theorem by Clifton, Bub and Halvorson (2003)(CBH) characterizes quantum theory in terms of information--theoretic principles. According to Bub (2004, 2005) the philoso…
Scaling and Universality of the Complexity of Analog Computation
Yaniv Avizrats, Joshua Feinberg, Shmuel Fishman
We apply a probabilistic approach to study the computational complexity of analog computers which solve linear programming problems. We analyze numerically various ensembles of lin…
Fermion Bag Solitons in the Massive Gross-Neveu and Massive Nambu-Jona-Lasinio Models in 1+1 Dimensions: Inverse Scattering Analysis
Joshua Feinberg, Shlomi Hillel
Formation of fermion bag solitons is an important paradigm in the theory of hadron structure. We report here on our non-perturbative analysis of this phenomenon in the 1+1 dimensio…
The Linear Arrangement Problem Parameterized Above Guaranteed Value
G. Gutin, A. Rafiey, S. Szeider +1
A linear arrangement (LA) is an assignment of distinct integers to the vertices of a graph. The cost of an LA is the sum of lengths of the edges of the graph, where the length of a…
Stable Fermion Bag Solitons in the Massive Gross-Neveu Model: Inverse Scattering Analysis
Joshua Feinberg, Shlomi Hillel
Formation of fermion bag solitons is an important paradigm in the theory of hadron structure. We study this phenomenon non-perturbatively in the 1+1 dimensional Massive Gross-Neveu…
A question of van den Dries and a theorem of Lipshitz and Robinson: Not everything is standard
Ehud Hrushovski, Ya'acov Peterzil
We use a new construction of an o-minimal structure, due to Lipshitz and Robinson, to answer a question of van den Dries regarding the relationship between arbitrary o-minimal expa…
Minimum Cost Homomorphisms to Semicomplete Multipartite Digraphs
G. Gutin, A. Rafiey, A. Yeo
For digraphs and , a mapping $f: V(D)\dom V(H)$ is a {\em homomorphism of to } if implies For a fixed directed or undirected graph $H…
Menger's theorem for infinite graphs
Ron Aharoni, Eli Berger
We prove that Menger's theorem is valid for infinite graphs, in the following strong form: let and be two sets of vertices in a possibly infinite digraph. Then there exist…
Minimum Cost and List Homomorphisms to Semicomplete Digraphs
G. Gutin, A. Rafiey, A. Yeo
The following optimization problem was introduced in \cite{gutinDAM}, where it was motivated by a real-world problem in defence logistics. Suppose we are given a pair of digraphs $…
Some families of density matrices for which separability is easily tested
Samuel L. Braunstein, Sibasish Ghosh, Toufik Mansour +2
We reconsider density matrices of graphs as defined in [quant-ph/0406165]. The density matrix of a graph is the combinatorial laplacian of the graph normalized to have unit trace.…
Critical pairs in abelian groups and Kemperman's structure theorem
Vsevolod F. Lev
A well-known result by Kemperman describes the structure of those pairs (A,B) of finite subsets of an abelian group satisfying |A+B|\le|A|+|B|-1. We establish a description which i…
On the mobility and efficiency of mechanical systems
G. Wolansky
The definition of a mobilized system and its efficiency are introduced. The existence of an optimal (maximally efficient) system is proved by an application of Young measures and c…
On the X-rays of permutations
Cecilia Bebeacua, Toufik Mansour, Alexander Postnikov +1
The X-ray of a permutation is defined as the sequence of antidiagonal sums in the associated permutation matrix. X-rays of permutation are interesting in the context of Discrete To…
Local bulk operators in AdS/CFT: a boundary view of horizons and locality
Alex Hamilton, Daniel Kabat, Gilad Lifschytz +1
We develop the representation of local bulk fields in AdS by non-local operators on the boundary, working in the semiclassical limit and using AdS_2 as our main example. In global…
Matchings Avoiding Partial Patterns
William Y. C. Chen, Toufik Mansour, Sherry H. F. Yan
We show that matchings avoiding certain partial patterns are counted by the 3-Catalan numbers. We give a characterization of 12312-avoiding matchings in terms of restrictions on th…
Tangent Dirac structures and submanifolds
Izu Vaisman
We write down the local equations that characterize the submanifolds N of a Dirac manifold M which have a normal bundle that is either a coisotropic or an isotropic submanifold of…