18 research outputs found
Dual Metrics for a Class of Radiative Spacetimes
Get PDFSecond rank non-degenerate Killing tensors for some subclasses of spacetimes
admitting parallel null one-planes are investigated. Lichn\'erowicz radiation
conditions are imposed to provide a physical meaning to spacetimes whose
metrics are described through their associated second rank Killing tensors.
Conditions under which the dual spacetimes retain the same physical properties
are presented.Comment: 8 pages, LaTeX, Minor revisions in the wording in Sec.5. Typo
corrected in references. Journ.-ref adde
Separated boundary value problem for fractional differential equations depending on lower-order derivative
Get PDFOn the existence of mild solutions to the Cauchy problem for a class of fractional evolution equation
Get PDFExistence results for fractional differential inclusions with three-point fractional integral boundary conditions
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CHEMOMETRIC QUANTITATIVE ANALYSIS OF PYRIDOXINE HCl AND THIAMINE HCl IN A VITAMIN COMBINATION BY PRINCIPAL COMPONENT ANALYSIS, CLASSICAL LEAST SQUARES, AND INVERSE LEAST SQUARES TECHNIQUES
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