Now showing items 31-40 of 1203
Multiwavelength observations of ls i +61° 303 with veritas,swift, andrxte
(IOP Publishing, 2009-07-08)
We present results from a long-term monitoring campaign on the TeV binary LSI +61 degrees 303 with VERITAS at energies above 500 GeV, and in the 2-10 keV hard X-ray bands with RXTE and Swift, sampling nine 26.5 day orbital ...
Veritas observations of the bl lac object 1es 1218+304
(IOP Publishing, 2009-04-07)
The VERITAS collaboration reports the detection of very-high-energy gamma-ray emission from the high-frequency-peaked BL Lac object 1ES 1218+304 located at a redshift of z = 0.182. A gamma-ray signal was detected with a ...
Evidence for long-term gamma-ray and x-ray variability from the unidentified tev source hess j0632+057
(IOP Publishing, 2009-05-28)
HESS J0632+057 is one of only two unidentified very-high-energy gamma-ray sources which appear to be point-like within experimental resolution. It is possibly associated with the massive Be star MWC 148 and has been suggested ...
Veritas observations of a very high energy γ-ray flare from the blazar 3c 66a
(IOP Publishing, 2009-02-18)
The intermediate-frequency peaked BL Lacertae (IBL) object 3C 66A is detected during 2007-2008 in VHE ( very high energy; E &gt; 100 GeV) gamma rays with the VERITAS stereoscopic array of imaging atmospheric Cherenkov ...
Positive and maximal positive solutions of singular mixed boundary value problem
(Walter de Gruyter GmbH, 2009-01-01)
The paper is concerned with existence results for positive solutions and maximal positive solutions of singular mixed boundary value problems. Nonlinearities h(t;x;y) in differential equations admit a time singularity at ...
Dead cores of singular dirichlet boundary value problems with ϕ-laplacian
(Institute of Mathematics, Czech Academy of Sciences, 2008-07-30)
The paper discusses the existence of positive solutions, dead core solutions and pseudodead core solutions of the singular Dirichlet problem (phi(u'))' = lambda f(t, u, u'), u(0) = u(T) = A. Here lambda is the positive ...
Separable anisotropic differential operators in weighted abstract spaces and applications
(Elsevier BV, 2008-02-01)
Fixed point theory for various classes of inward multivalued maps
(Cambridge University Press (CUP), 2009-10-21)
In this paper we present new fixed point theorems for inward and weakly inward type maps between Frechet spaces. We also discuss Kakutani-Monch and contractive type maps.
Higher order nonlinear degenerate differential operator equations
(Elsevier BV, 2009-10-01)