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980611s1991 it ||||| eng |
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|a 2190113
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|a Sistema de Bibliotecas de la Universidad de Costa Rica
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|a eng
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|a 515.724.2
|b G745g
|2 00
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|a Gramchev, Todor
|e Autor/a
|4 aut
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|a Global solvability and hypoellipticity on the Torus for a class of differntial operators with variable coefficients /
|c Todor Gramchev, Petar Popivanov and Masafumi Yoshino
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|a Trieste :
|b International Centre for Theoretical Physics,
|c 1991.
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|a 12 páginas
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|a OPERADORES DIFERENCIALES
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|a Popivanov, Petar
|e Autor/a
|4 aut
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|a Yoshino, Masafumi
|e Autor/a
|4 aut
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|a Centro Catalográfico
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