In this paper we use the O’Nan–Scott Theorem and Aschbacher’s theorem to classify the primitive permutation groups of degree less than 2500. MSC: 20B15, 20B10 1 Historical Background The classification of the primitive permutation groups of low degree is one of the oldest problems in group theory. The earliest significant progress was made by Jordan, who in 1871 counted the primitive permutatio...

We study conditions on a C∗-dynamical system (A,G,α) under which induction of primitive ideals (resp. irreducible representations) from stabilizers for the action of G on the primitive ideal space Prim(A) give primitive ideals (resp. irreducible representations) of the crossed product A⋊α G. The results build on earlier results of Sauvageot [17] and others, and will correct a (possibly overly o...

primitive neuroectodermal tumor (pnet) is usually an aggressive, rapidly progressing and metastasizing tumor. occurrence of this type of tumor in the kidney is considered as unusual and few cases have been reported so far. we present a metastatic pnet arising probably from the kidney in a 17-year-old female patient with local invasion and metastasis to the stomach. pnet should be considered as ...

the primitive neuroectodermal tumor (pnet) belongs to a group of highly malignant tumors and is composed of small round cells of a neuroectodermal origin. categorized in the same tumor family as ewing sarcoma, the pnet is most likely to occur in bones and soft tissues. however, a small number of pnet cases arising in the pelvis have been reported as well. we present three cases of pelvic pnet: ...

IT was Sir Winston Churchill who remarked in 1944, when addressing the Royal College of Physicians, that "the longer you can look back, the further you can look forward." Probably in no field is this more true than in the biological sciences. An understanding of their evolution in a historical sense at once provides a perspective and a background to knowledge which illuminates the path to furth...

This paper concerns the prefix-primitive (shortly, p-primitive) conjugates of related primitive words. The non-p-primitive conjugates of square-free words are studied. We show that every d-primitive square-free word over an alphabet with three elements has at most one non-p-primitive conjugate. We also find that all the conjugates of a primitive word are nor p-primitive.

Batticaloa region which is situated in the East Ceylon has been a location where Hindu Culture prevailed for longtime. The primitive families have Hindus and from time to people various parts of India settled Batticaloa. objective this study find out such tradition Btticaloa longtime nature cultural aspects related period Anuradhapura Era. Historical Descriptive methods undertaken. Inscriptions...