Geodesic
Tangent cones of Schubert varieties for $A_n$ of lower rank
Zapiski Nauchnykh Seminarov POMI, Problems in the theory of representations of algebras and groups. Part 22, Tome 394 (2011), pp. 218-225 Cet article a éte moissonné depuis la source Math-Net.Ru

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In the paper we calculate the tangent cones for the Schubert varieties for series $A_n$ of rank less or equal to four, we formulate hypotheses on the structure of tangent cones in the general case. 
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     author = {D. Yu. Eliseev and A. N. Panov},
     title = {Tangent cones of {Schubert} varieties for $A_n$ of lower rank},
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D. Yu. Eliseev; A. N. Panov. Tangent cones of Schubert varieties for $A_n$ of lower rank. Zapiski Nauchnykh Seminarov POMI, Problems in the theory of representations of algebras and groups. Part 22, Tome 394 (2011), pp. 218-225. http://geodesic.mathdoc.fr/item/ZNSL_2011_394_a7/

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