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RIEMANNIAN SUBMERSIONS WHOSE TOTAL SPACE IS ENDOWED WITH A TORSE-FORMING VECTOR FIELD
Meric, Semsi Eken,Kilic, Erol Korean Mathematical Society 2022 대한수학회논문집 Vol.37 No.4
In the present paper, a Riemannian submersion 𝜋 between Riemannian manifolds such that the total space of 𝜋 endowed with a torse-forming vector field 𝜈 is studied. Some remarkable results of such a submersion whose total space is Ricci soliton are given. Moreover, some characterizations about any fiber of 𝜋 or the base manifold B to be an almost quasi-Einstein are obtained.
Colonic Metastasis from Carcinoma of the Breast that Mimicks a Primary Intestinal Cancer
Kazim Uygun,Zafer Kocak,Semsi Altaner,Irfan Cicin,Fusun Tokatli,Cem Uzal 연세대학교의과대학 2006 Yonsei medical journal Vol.47 No.4
Although the lung, liver, or bones are the most common location for distant metastases in breast cancer patients, metastases to the intestinal tract are very rarely recognized in the clinic. We will present an unusual case of colonic metastasis from a carcinoma of the breast that mimics a primary intestinal cancer, along with a through review of English language medical literature. Despite the fact that isolated gastrointestinal (GI) metastases are very rare and much less common than benign disease processes or second primaries of the intestinal tract in patients with a history of breast cancer, metastatic disease should be given consideration whenever a patient experiences GI symptoms.