Results 51 to 60 of about 2,970,127 (311)

Geometrical methods in loop calculations and the three-point function

, 2005
A geometrical way to calculate N-point Feynman diagrams is reviewed. As an example, the dimensionally-regulated three-point function is considered, including all orders of its epsilon-expansion. Analytical continuation to other regions of the kinematical
Andrei I. Davydychev, Ashmore, Bern, Bern, Binoth, Bollini, Cicuta, Cutkosky, Davydychev, Davydychev, Davydychev, Davydychev, Davydychev, Davydychev, Fleischer, Giele, Källen, Körner, Körner, Landau, Mandelstam, Nickel, Nierste, Ortner, Tarasov, Tarasov, Taylor, Ussyukina, Wagner, ’tHooft, ’tHooft   +30 more
core   +2 more sources

On Time-dependent Backgrounds in Supergravity and String Theory [PDF]

, 2002
Time-dependent solutions of supergravity and string theory are studied. The examples are obtained from de Sitter deformation of gauge/gravity dualities, analytical continuation of static solutions, and ``exactly solvable'' worldsheet models.
A. A. Tseytlin, A. A. Tseytlin, A. Buchel, A. Buchel, A. Buchel, A. Buchel, A. Buchel, A. H. Chamseddine, A. W. Peet, Alex Buchel, B. Craps, C. Grojean, C. M. Chen, C. P. Burgess, C. R. Nappi, D. Kutasov, E. Guadagnini, E. Guadagnini, E. Witten, F. Bigazzi, G. T. Horowitz, G. T. Horowitz, G. T. Horowitz, H. Liu, H. Liu, H. Ooguri, I. R. Klebanov, I. R. Klebanov, J. Khoury, J. M. Maldacena, J. M. Maldacena, J. M. Maldacena, J. M. Maldacena, J. M. Maldacena, J. P. Gauntlett, J. Simon, Johannes Walcher, K. Behrndt, L. A. Pando Zayas, L. Cornalba, L. Cornalba, M. Berkooz, M. Gutperle, M. J. Perry, M. Kruczenski, M. Rocek, N. S. Deger, O. Aharony, O. Aharony, O. Aharony, O. Aharony, P. Berglund, Peter Langfelder, R. Apreda, R. Bousso, R. Dijkgraaf, S. Elitzur, S. Elitzur, S. S. Gubser, S. S. Gubser, S. W. Hawking   +60 more
core   +4 more sources

Changes in Body Composition in Children and Young People Undergoing Treatment for Acute Lymphoblastic Leukemia: A Systematic Review and Meta‐Analysis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Ongoing evidence indicates increased risk of sarcopenic obesity among children and young people (CYP) with acute lymphoblastic leukemia (ALL), often beginning early in treatment, persisting into survivorship. This review evaluates current literature on body composition in CYP with ALL during and after treatment.
Lina A. Zahed, Raquel Revuelta Iniesta, Mary Fewtrell, Julie Lanigan, Breeana Gardiner, Graeme O'Connor   +5 more
wiley   +1 more source

On the analytical continuation of the ratio $H_4(\alpha,\delta+1;\gamma,\delta;-\mathbf{z})/H_4(\alpha,\delta+2;\gamma,\delta+1;-\mathbf{z})$

Researches in Mathematics
The paper considers the problem of analytical continuation of special functions by branched continued fractions. These representations play an important role in approximating of special functions that arise in various applied problems. By improving the
R. Dmytryshyn, C. Cesarano, I.-A. Lutsiv
doaj   +1 more source

Monopole solutions to the Bogomolny equation as three-dimensional generalizations of the Kronecker series

, 2012
The Dirac monopole on a three-dimensional torus is considered as a solution to the Bogomolny equation with non-trivial boundary conditions. The analytical continuation of the obtained solution is shown to be a three-dimensional generalization of the ...
A. Kapustin, A. M. Levin, A. M. Levin, A. M. Levin, A. Weyl, E. B. Bogomol’nyi, H. S. M. Coxeter, K. M. Bulycheva, M. Atiyah, N. Hitchin, P. A. M. Dirac, P. A. M. Dirac, P. Kronheimer, R. Ward, V. Rubakov, W. Nahm, Y. M. Shnir   +16 more
core   +1 more source

Quantum damped oscillator II: Bateman's Hamiltonian vs. 2D Parabolic Potential Barrier [PDF]

, 2005
We show that quantum Bateman's system which arises in the quantization of a damped harmonic oscillator is equivalent to a quantum problem with 2D parabolic potential barrier known also as 2D inverted isotropic oscillator.
Abramowitz, Balazs, Barton, Bateman, Bateman, Blasone, Bohm, Bohm, Castagnino, Celeghini, Chruściński, Dariusz Chruściński, Dekker, Duren, Flügge, Ford, Friedman, Gel’fand, Gradshteyn, Kemble, Kleinert, Landau, Maurin, Morse, Shimbori, Yosida   +25 more
core   +2 more sources

Parent‐to‐Child Information Disclosure in Pediatric Oncology

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Despite professional consensus regarding the importance of open communication with pediatric cancer patients about their disease, actual practice patterns of disclosure are understudied. Extant literature suggests a significant proportion of children are not told about their diagnosis/prognosis, which is purported to negatively ...
Rachel A. Kentor, Flora Hoodin, Michelle Byrd, Kristin A. Kullgren, Leah LaLonde, Lauren Benkoske, Patrick Smith, Dawn Carson, Karen MacDonald, Susumu Inoue, Brenda Kitchen, Kate Gowans, Gregory A. Yanik   +12 more
wiley   +1 more source

On Analytical Extension of Generalized Hypergeometric Function ₃F₂

Axioms
The paper considers the generalized hypergeometric function F23, which is important in various fields of mathematics, physics, and economics. The method is used, according to which the domains of the analytical continuation of the special functions are ...
Roman Dmytryshyn, Volodymyra Oleksyn
doaj   +1 more source

Explicit Zeta Functions for Bosonic and Fermionic Fields on a Noncommutative Toroidal Spacetime

, 2001
Explicit formulas for the zeta functions $\zeta_\alpha (s)$ corresponding to bosonic ($\alpha =2$) and to fermionic ($\alpha =3$) quantum fields living on a noncommutative, partially toroidal spacetime are derived.
Ardalan F, Bender C M, Bytsenko A A, Bytsenko A A, Cheung Y-K E, Cheung Y-K E, Chowla S, Connes A, Douglas M R, E Elizalde, Elizalde E, Elizalde E, Elizalde E, Elizalde E, Epstein P, Epstein P, Gilkey P B, Iyanaga S, Kontsevich M, Schomerus V, Seiberg N   +20 more
core   +1 more source

Improved many-body expansions from eigenvector continuation [PDF]

Physical Review C, 2019
Quantum many-body theory has witnessed tremendous progress in various fields, ranging from atomic and solid-state physics to quantum chemistry and nuclear structure.
P. Demol, T. Duguet, A. Ekstrom, M. Frosini, K. Hebeler, S. Konig, Dean Lee, A. Schwenk, V. Somà, A. Tichai   +9 more
semanticscholar   +1 more source