نتایج جستجو برای: surfaces of general type
تعداد نتایج: 21307558 فیلتر نتایج به سال:
For each integer a = 2,3,4, we construct a family of minimal complex algebraic surfaces with torsion group Z/2 such that c1 = 2χ(O)−1 and χ(O) = a, where c1 and χ(O) are the first Chern class and the Euler characteristic of the structure sheaf.
We study a polarized family π : X → R of 2-dimensional complex projective varieties, originally constructed by Catanese and Ciliberto, whose smooth fibers are surfaces of general type with invariants pg = q = 1, K2 = 3. By studying degenerations within a subfamily, we show that the Zariski-closure of the image of the monodromy representation on the second cohomology of a smooth fiber is as larg...
the present study aimed to investigate representation of discourse markers and metadiscourse markers in conversations and readings of general elt coursebook series used in the language centers of iran. to this aim, four elt coursebooks popularly taught in language centers of this country were analyzed based on fung and carter’s (2007) framework regarding discourse markers and hyland’s (2005) fr...
since the modern art is chosen to discuss, it means a wide expansion of art courses are affected by modernism that enter to the new realms. because of expanded subject, lack of sources and also the close relationship between painting and animation, this thesis emphasizes on the painting and it is recommended to use the phrase “modern painting” instead of modern art (which is more general). thi...
the aim of the present study was to investigate the frequency and the type of discourse markers used in the argumentative and expository writings of iranian efl learners and the differences between these text features in the two essay genres. the study also aimed at examining the influence of the use of discourse markers on the participants’ writing quality. to this end the discourse markers us...
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