The divergent part of the one-loop off-shell effective action is computed for a single scalar field coupled to the Ricci curvature of 2D gravity (cφR), and self interacting by an arbitrary potential term V (φ). The Vilkovisky-DeWitt effective action is used to compute gauge-fixing independent results. In our background field/covariant gauge we find that the Liouville theory is finite on shell. ...

We discuss some mathematical aspects of the problem of inverting gravitational field data to extract the underlying mass distribution. While the forward problem of computing the gravity field from a given mass distribution is mathematically straightforward, the inverse of this forward map has some interesting features that make inversion a difficult problem. In particular, the forward map has a...

nameh-ye_khosravan is a work of jalal al-din mirza, son of fath ali shah qajar, which was written during the reign of naser al-din shah qajar. in accordance to this era’s way of thinking, the illustrated manuscript of the nameh-ye khosravan is characteristically written in persian script, the arabic words and vocabularies are removed from it and the kings of the pre-islamic era of iran are illu...

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