# doubleton

## Definitions

• WordNet 3.6
• n doubleton (bridge) a pair of playing cards that are the only cards in their suit in the hand dealt to a player
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Century Dictionary and Cyclopedia
• n doubleton In whist and bridge, a two-card suit.
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## Usage

### In literature:

In October I met him at Doubleton; we spent three days there together.
"The Path Of Duty" by Henry James
"Competition" by James Causey
This, therefore, was the legation, the residence of our minister, Sir Shalley Doubleton.
"A Day's Ride A Life's Romance" by Charles James Lever
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### In science:

For every subset X of 2N , by [X ]2 we denote the set of all doubletons of X .
A classification of separable Rosenthal compacta and its applications
We recall that for every subset X of 2N we identify the set [X ]2 of doubletons of X with the set of all (σ, τ ) ∈ X 2 with σ ≺ τ .
A classification of separable Rosenthal compacta and its applications
Replacing the doubletons {xγ , zγ } in S by singletons gives the conclusion.
On cardinal invariants and generators for von Neumann algebras
We can also check that a fraction ρ (1 − ρ) of the n ﬁlled boxes is ﬁlled with doubletons: E (A2,N | PN = n) ∼ ρ (1 − ρ) n and more generally that E (Ai,N | PN = n) ∼ ρ (1 − ρ)i n.
A Bose-Einstein Approach to the Random Partitioning of an Integer
In this paper we study the relationship between query and search engine by exploring the adaptive properties for doubleton as a space of event based on a simple search engine.
Simple Search Engine Model: Adaptive Properties for Doubleton
These results are expected from the fact that the space of the solutions of the free equations for the higher spin ﬁelds in the bulk of the AdS space is the tensor product of the two doubleton representations .
Notes On Higher Spin Symmetries
We will show in the next section that at least for the four dimensional boundary the higher spin symmetries ﬁx the correlation functions up to a ﬁnite number of parameters (corresponding to the permutations of the doubletons).
Notes On Higher Spin Symmetries
This invariant subspace is the doubleton representation of hsC (2, 2), we will call it F .
Notes On Higher Spin Symmetries
The doubleton representation F of hsC (2, 2) has an invariant hermitean scalar product: (ψ1 , ψ2 ) = Z d4q ψ1 (−q , q)ψ2 (q , q) This expression is somewhat formal, because we did not specify which functions we need, and there is no guarantee that the integral will converge.
Notes On Higher Spin Symmetries
In particular, all the differential operators with constant coeﬃcients are elements of hsC (2, 2). (They are the polynomials of QI QJ .) The doubleton representation has a simple geometrical meaning.
Notes On Higher Spin Symmetries
The subtlety in m arises from the fact that some of the midpoints between two elements of a 12 element substructure are not singletons but rather doubletons involving an element from an adjacent substructure.
Reconstructing Metric Trees from Order Information on Triples is NP Complete
Every midpoint will be either a singleton or a doubleton {y , µy}.
Reconstructing Metric Trees from Order Information on Triples is NP Complete
They can be interval sets, balls, doubletons etc. (see [MZ, Z1]).
A Lohner-type algorithm for control systems and ordinary differential inclusions
With more effort we could extend the analysis to include doubleton piles.
Riffle shuffles of a deck with repeated cards
With more effort we could extend the analysis to include doubleton piles.
A rule of thumb for riffle shuffling
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