10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- European Organization for Nuclear ResearchCH2.4k papers
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- University of BelgradeRS2.3k papers
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- University of IowaUS2.3k papers
- Charles UniversityCZ2.3k papers
- The Ohio State UniversityUS2.3k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT2.2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT2.2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PaviaIT2.2k papers
- Centre National de la Recherche ScientifiqueFR2.2k papers
16 papers · 1 filter
Nonlinear Prediction of Solar Cycle 24
A. Kilcik, C. N. K. Anderson, J. P. Rozelot +3
Sunspot activity is highly variable and challenging to forecast. Yet forecasts are important, since peak activity has profound effects on major geophysical phenomena including spac…
-polynomials of finite monoids of Lie type
Kürşat Aker, Mahir Bilen Can, Müge Taşkín
This paper concerns the combinatorics of the orbit Hecke algebra associated with the orbit of a two sided Weyl group action on the Renner monoid of a finite monoid of Lie type, …
Cosmological particle creation: Fluctuations and an ensemble picture
Ali Kaya
We point out that in the context of quantum fields in time dependent classical backgrounds, the number of created particles with a given momentum largely deviates about its mean va…
All "static" spherically symmetric perfect fluid solutions of Einstein's equations with constant equation of state parameter and finite-polynomial "mass function"
Ibrahim Semiz
We look for "static" spherically symmetric solutions of Einstein's Equations for perfect fluid source with equation of state . In order to include the possibilities of recent…
Stability of Maximum likelihood based clustering methods: exploring the backbone of classifications (Who is keeping you in that community?)
Muhittin Mungan, Jose J. Ramasco
Components of complex systems are often classified according to the way they interact with each other. In graph theory such groups are known as clusters or communities. Many differ…
Relativistic Lee Model on Riemannian Manifolds
Burak Tevfik Kaynak, Osman Teoman Turgut
We study the relativistic Lee model on static Riemannian manifolds. The model is constructed nonperturbatively through its resolvent, which is based on the so-called principal oper…
Symmetry analysis and exact solutions of modified Brans-Dicke cosmological equations
Metin Arik, Mikhail B. Sheftel
We perform a symmetry analysis of modified Brans-Dicke cosmological equations and present exact solutions. We discuss how the solutions may help to build models of cosmology where,…
The standard "static" spherically symmetric ansatz with perfect fluid source revisited
Ibrahim Semiz
Considering the standard "static" spherically symmetric ansatz ds2 = -B(r) dt2 + A(r) dr2 + r2 dOmega2 for Einstein's Equations with perfect fluid source, we ask how we can interpr…
First Observation of the Cabibbo-suppressed Decays Xi_c+ -> Sigma+ pi- pi+ and Xi_c+ -> Sigma- pi+ pi+ and Measurement of their Branching Ratios
SELEX Collaboration, E. Vazquez-Jauregui, J. Engelfried
We report the first observation of two Cabibbo-suppressed decay modes, Xi_c+ -> Sigma+ pi- pi+ and Xi_c+ -> Sigma- pi+ pi+. We observe 59+/-14 over a background of 87, and 22+/-8 o…
Can hyperbolic phase of Brans-Dicke field account for Dark Matter?
M. Arik, M. Calik, F. Cifter
We show that the introduction of a hyperbolic phase for Brans-Dicke (BD) field results in a flat vacuum cosmological solution of Hubble parameter H and fractional rate of change of…
Self-dual gravity is completely integrable
Y. Nutku, M. B. Sheftel, J. Kalayci +1
We discover multi-Hamiltonian structure of complex Monge-Ampere equation (CMA) set in a real first-order two-component form. Therefore, by Magri's theorem this is a completely inte…
Lift of Invariant to Non-Invariant Solutions of Complex Monge-Ampère Equations
M. B. Sheftel, A. A. Malykh
We show how partner symmetries of the elliptic and hyperbolic complex Monge-Ampère equations (CMA and HCMA) provide a lift of non-invariant solutions of three- and two-dimensional…
Quantum Mechanical Breakdown of Perfect Homogeneity in Reheating After Inflation
Ali Kaya
In the context of quantum fields in time dependent classical backgrounds, we notice that the number of created particles with a given momentum largely deviates about its mean value…
On the nature of gravitational forces
A. Del Popolo
In this paper I show how the statistics of the gravitational field is changed when the system is characterized by a non-uniform distribution of particles. I show how the distributi…
Dark matter and structure formation a review
Antonino Del Popolo
This paper provides a review of the variants of dark matter which are thought to be fundamental components of the universe and their role in origin and evolution of structures and…
Some improvements to the spherical collapse model
Antonino Del Popolo
I study the joint effect of dynamical friction, tidal torques and cosmological constant on clusters of galaxies formation I show that within high-density environments, such as rich…