Results 71 to 80 of about 165,985,528 (155)
Nonamenable subforests of multi‐ended quasi‐pmp graphs
Abstract We prove the a.e. nonamenability of locally finite quasi‐pmp Borel graphs whose every component admits at least three nonvanishing ends with respect to the underlying Radon–Nikodym cocycle. We witness their nonamenability by constructing Borel subforests with at least three nonvanishing ends per component, and then applying Tserunyan and ...
Ruiyuan Chen +2 more
wiley +1 more source
Abstract We give a formula with explicit constants relating the subsurface projection dY(ν−,ν+)$d_Y(\nu ^-,\nu ^+)$ of the end invariants ν−,ν+$\nu ^-,\nu ^+$ of a hyperbolic 3‐manifold Q$Q$ diffeomorphic to S×R$S\times \mathbb {R}$ and the length of the geodesic representative in Q$Q$ of the multicurve ∂Y$\partial Y$.
Gabriele Viaggi
wiley +1 more source
Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley +1 more source
A class of partially ordered sets: II
Hemion G. A class of partially ordered sets: II. Chaos, Solitons & Fractals. 1998;9(7):1219-1232.In a previous paper, a certain class of discrete partially ordered sets was defined and a number of general properties of the sets was described.
Geoffrey Hemion, Hemion, Geoffrey
core +1 more source
Information Inequalities via Submodularity and a Problem in Extremal Graph Theory. [PDF]
Sason I.
europepmc +1 more source
Abstract The annual mean Surface Air Temperature (SAT) observed during 1757–1762 in central Beijing was 3.1°C lower than that of the nearby Autonomous Weather Stations (AWS) in recent 6 years (2015–2020). The change was much larger than the averaged global warming of the past century.
Guoyu Ren +4 more
wiley +1 more source
Applications of algebra to combinatorics and conversely. Topics include enumeration methods, partially ordered sets and lattices, matching theory, partitions and tableaux, algebraic graph theory, and combinatorics of ...
Postnikov, Alexander
core
Total compactness of a-inductive partially ordered sets [PDF]
A poset (i.e., partially ordered set) P is called A-inductive iff every nonempty well ordered subset W of P has a supremum (i.e., least upper bound) wich need not be an element of ...
Abian, Alexander, Kemp, Paula A.
core
On Sums Over Partially Ordered Sets
We establish a general theorem for reducing sums of type # y#x g(y) where g is a mapping from a partially ordered set into an abelian group. Conclusions concern the Mobius function, the principle of inclusionexclusion, the Tutte polynomial and ...
Klaus Dohmen
core
Some Properties of Partially Ordered Sets [PDF]
It may be said of certain pairs of elements of a set that one element precedes the other. If the collection of all such pairs of elements in a given set exhibits certain properties, the set and the collection of pairs is said to constitute a partially ...
Hudson, Philip Wayne
core

