We propose a variational approach for deblurring and impulsive noise removal in multi-channel images. A robust data fidelity measure and edge preserving regularization are employed. We consider several regularization approaches, such as Beltrami flow, Mumford-Shah and Total-Variation Mumford-Shah. The latter two methods are extended to multi-channel images and reformulated using the Γ -converge...

We prove that a certain series defines a constant function using Wolpert’s formula for the variation of the length of a geodesic along a Fenchel Nielsen twist. Subsequently we determine the value viewing it as function on the the Deligne Mumford compactification M1,1 and evaluating it at the stable curve at infinity. Conventions: 1. For γ an essential closed curve on a surface lγ(x) is the leng...

We compute explicitly the anisotropy eeect in the H 1 term, generated in the approximation of the Mumford-Shah functional by nite element spaces deened on structured triangulations.

The aim of this paper is to prove the existence of extension operators for SBV functions from periodically perforated domains. This result will be the fundamental tool to prove the compactness in a non coercive homogenization problem.

this ethnography is a dialogic ethnography between field and two researchers. dialogic ethnography or dialogic anthropology was a result of textual revolution in discipline. textual or interpretive anthropology has been definition of culture as text founded in 1970s and 1980s. geertzian textual revolution considered and interpreted events and actions as texts. marcus, clifford, rabinow, crapanz...

the sherley brothers' mission in iran dealt with some aspects. they carried a message from england and the christian world to shah abbas. in addition, they trained iranian army and taught them how to make artillery, they fought with the iranians against the ottoman empire shoulder to shoulder and both of them were sent to europe for political and commercial purposes by shah abbas. shah abb...

Department of Oral & Maxillofacial Surgery, Sharavathi Dental College and Hospital, Shimoga, Karnataka, India Department of Periodontics, K.M. Shah Dental College and Hospital, Sumandeep Vidyapeeth, Vadodara, Gujarat, India Department of Oral Medicine & Radiology, Sharavathi Dental College and Hospital, Shimoga, Karnataka, India Department of Conservative and Endodontics, K.M Shah Dental Colleg...

We present a general theory to study optimal regularity for a large class of nonlinear elliptic systems satisfying general boundary conditions and in the presence of a geometric transmission condition on the free-boundary. As an application we give a full positive answer to a conjecture of De Giorgi on the analyticity of local minimizers of the Mumford-Shah functional.

sections of history were unsaid because they happened beside facts. in these situations, minds were attracted by what is visible. as a result, few facts were ignored. in many of sources that considered fath ali shah`s iconography, his intense tendency toward using jewelries or attention to appearance defined as his diplomatic policies toward foreigners. this note has a considerable place in art...