Results 41 to 50 of about 143,405 (309)
Dualities and models in various dimensions
Physics Letters B, 2021 Working within the path-integral framework we first establish a duality between the partition functions of two U(1) gauge theories with a theta term in d=4 space-time dimensions.
E.F. Moreno, F.A. Schaposnik
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Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
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Balance, Partition Function and Hamiltonians [PDF]
, 2021 Often, Lagrangians yielding the same equations of motion yield the same partition function. For the case of L= U(x)U(x) + mm/12 vvvv + mU(x) vv ((1)) this does not occur. As shown in (1), ((1)) yields the same same equations of motion as H = Hamiltonian =
Francesco R. Ruggeri
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AlgorithmsWe consider the estimation of the marginal likelihood in Bayesian statistics, with primary emphasis on Gaussian graphical models, where the intractability of the marginal likelihood in high dimensions is a frequently researched problem.
Eric Chuu +3 more
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Flow polytopes and the Kostant partition function [PDF]
Discrete Mathematics & Theoretical Computer Science, 2012 We establish the relationship between volumes of flow polytopes associated to signed graphs and the Kostant partition function. A special case of this relationship, namely, when the graphs are signless, has been studied in detail by Baldoni and Vergne ...
Karola Mészáros, Alejandro H. Morales
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Journal of Combinatorial Theory, Series A, 1995 Let \(\mathbb{N}\) be the set of nonnegative integers and \(A = (a_1, \dots, a_n)\) a \(d \times n\)-matrix with entries in \(\mathbb{N}\). The corresponding vector partition function \(\varphi_A : \mathbb{N}^d \to \mathbb{N}\) is defined as follows: \(\varphi_A (u)\) is the number of integer vectors \((\lambda_1, \dots, \lambda_n) \in \mathbb{N}^n ...
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Approximating the Bethe partition function
CoRR, 2013 When belief propagation (BP) converges, it does so to a stationary point of the Bethe free energy $F$, and is often strikingly accurate. However, it may converge only to a local optimum or may not converge at all. An algorithm was recently introduced for attractive binary pairwise MRFs which is guaranteed to return an $ε$-approximation to the global ...
Weller, Adrian, Jebara, Tony
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FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
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Olbertian Partition Function in Scalar Field Theory
Frontiers in Physics, 2020 The Olbertian partition function is reformulated in terms of continuous (Abelian) fields described by the Landau–Ginzburg action, respectively, Hamiltonian.
R. A. Treumann +2 more
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Parking Functions and Noncrossing Partitions [PDF]
The Electronic Journal of Combinatorics, 1996 A parking function is a sequence $(a_1,\dots,a_n)$ of positive integers such that, if $b_1\leq b_2\leq \cdots\leq b_n$ is the increasing rearrangement of the sequence $(a_1,\dots, a_n),$ then $b_i\leq i$. A noncrossing partition of the set $[n]=\{1,2,\dots,n\}$ is a partition $\pi$ of the set $[n]$ with the property that if $a < b < c < d ...
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