Results 61 to 70 of about 600,383 (177)

String Theory and Emergent AdS Geometry in Higher Spin Field Theories [PDF]

, 2013
We analyze the Weyl invariance constraints on higher spin vertex operators in open superstring theory describing massless higher spin gauge field excitations in d-dimensional space-time.
Polyakov, Dimitri
core   +1 more source

Poisson-Lie T-plurality of three-dimensional conformally invariant sigma models II: Nondiagonal metrics and dilaton puzzle

, 2004
We look for 3-dimensional Poisson-Lie dualizable sigma models that satisfy the vanishing beta-function equations with constant dilaton field. Using the Poisson-Lie T-plurality we then construct 3-dimensional sigma models that correspond to various ...
C. Klimcík, K.E. Kunze, L Hlavaty, L Snobl, L. Bianchi, L. Hlavatý, L.D. Landau, R. von Unge   +7 more
core   +1 more source

Adaptive Regularization Algorithms with Inexact Evaluations for Nonconvex Optimization [PDF]

, 2019
A regularization algorithm using inexact function values and inexact derivatives is proposed and its evaluation complexity analyzed. This algorithm is applicable to unconstrained problems and to problems with inexpensive constraints (that is constraints ...
Bellavia, S., Gurioli, G., Morini, B., Toint, Ph. L.   +3 more
core   +3 more sources

The Partition Function of Multicomponent Log-Gases

, 2011
We give an expression for the partition function of a one-dimensional log-gas comprised of particles of (possibly) different integer charge at inverse temperature {\beta} = 1 (restricted to the line in the presence of a neutralizing field) in terms of ...
Berezin F A, Boussicault A, Christopher D Sinclair, de Bruijn N G, Forrester P, Forrester P J, Halperin B I, Jokela N, Jokela N, Luque J-G, Luque J-G, Mehta M L, Meray C, Rains E M, Rider B, Selberg A, Sinclair C D, Sinclair C D   +17 more
core   +1 more source

Extended Riemann-Liouville fractional derivative operator and its applications [PDF]

, 2015
Many authors have introduced and investigated certain extended fractional derivative operators. The main object of this paper is to give an extension of the Riemann-Liouville fractional derivative operator with the extended Beta function given by ...
Agarwal, Praveen, Choi, Junesang, Paris, Richard B.   +2 more
core   +1 more source

Directed Polymers with Random Interaction : An Exactly Solvable Case - [PDF]

, 1993
We propose a model for two $(d+1)$-dimensional directed polymers subjected to a mutual $\delta$-function interaction with a random coupling constant, and present an exact renormalization group study for this system.
B. Derrida, B. Derrida, B. Derrida, B. K. Chakrabarti, D. J. Amit, D. P. Foster, D. P. Foster, D. R. Nelson, D. R. Nelson, D. R. Nelson, D. S. Fisher, E. I. Shaknovitch, F. Igloi, G. Forgacs, G. Iori, G. Parisi, I. Richards, J. F. Nagle, J. J. Rajasekaran, J. M. Kim, J. M. Kim, J. Machta, K. F. Freed, M. E. Fisher, M. Kardar, M. Kardar, M. Kardar, M. Mezard, M. Mézard, P. Le Doussal, P. M. Binder, R. Lipowsky, S. F. Edwards, S. M. Bhattacharjee, S. M. Bhattacharjee, S. M. Bhattacharjee, S. M. Bhattacharjee, S. M. Bhattacharjee, Somendra M. Bhattacharjee, Sutapa Mukherji, T. C. Halsey, T. C. Lubensky, T. Izuyama, T. Natterman, Y. Kantor   +44 more
core   +3 more sources

A new Riemann–Liouville type fractional derivative operator and its application in generating functions

Advances in Difference Equations, 2018
Here, the concept of a new and interesting Riemann–Liouville type fractional derivative operator is exploited. Treatment of a fractional derivative operator has been made associated with the extended Appell hypergeometric functions of two variables and ...
M. Shadab, M. Faisal Khan, J. Luis Lopez-Bonilla   +2 more
doaj   +1 more source

A method for getting a finite $\alpha$ in the IR region from an all-order beta function

, 2017
The analytical method of QCD running coupling constant is extended to a model with an all-order beta function which is inspired by the famous Novikov-Shifman-Vai\-n\-s\-htein-Zakharov beta function of N=1 supersymmetric gau\-g\-e theories.
Zheng, Zhi-Yuan, Zhou, Gao-Liang
core   +1 more source

Nicotinamide riboside functions during development while beta-hydroxybutyrate functions during adulthood to extend C. elegans lifespan

microPublication biology, 2023
Nicotinamide riboside (NR), a form of vitamin B3 and a nicotinamide adenine dinucleotide (NAD+) precursor, has been shown to activate the mitochondrial unfolded protein response (UPRmt) and extend the lifespan when supplemented to C. elegans. The ketone body and histone deacetylase (HDAC) inhibitor beta-hydroxybutyrate (BHB) has also been shown to ...
Peters, J. Dylan, Peters, McKenzie P., Bradshaw, Patrick C.   +2 more
openaire   +2 more sources

Relating Physical Observables in QCD without Scale-Scheme Ambiguity

, 1992
We discuss the St\"uckelberg-Peterman extended renormalization group equations in perturbative QCD, which express the invariance of physical observables under renormalization-scale and scheme-parameter transformations.
A. Dhar, A. Dhar, A. Dhar, A. Peterman, C. J. Maxwell, E. C. G. Stückelberg, G. 't Hooft, G. B. West, G. B. West, G. Grunberg, G. Grunberg, G. Grunberg, G. Grunberg, Hung Jung Lu, J. Chýla, J. Chýla, J. Chýla, K. Hikasa, L. R. Surguladze, L. R. Surguladze, L. S. Brown, M. Haruyama, M. Z. Akrawy, O. V. Tarasov, P. M. Stevenson, P. M. Stevenson, P. M. Stevenson, P. M. Stevenson, P. M. Stevenson, R. Marshall, S. A. Larin, S. A. Larin, S. A. Larin, S. G. Gorishny, S. J. Brodsky, Stanley J. Brodsky, V. Branchina, V. Gupta   +37 more
core   +2 more sources