新义
发表于 2025-3-28 16:37:02
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micronutrients
发表于 2025-3-28 20:46:48
hyperbolic) equations and elliptic equations (of Poisson‘s type) are discussed. The em phasis is on methods developed and in use at the Naval Research Laboratory, although brief descriptions of competitive and kindred techniques are included as background material. This book is intended for special
Little
发表于 2025-3-28 23:33:21
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解冻
发表于 2025-3-29 03:28:05
Gustav Wagner,Andrea Mauerberger M.A.two kinds: the simple transcendental extension .(.), which is the field of fractions of the polynomial ring .[.] in an indeterminate ., and the simple algebraic extension .[.]/(.(.)) where .(.) is an irreducible polynomial in .[.]. In this chapter we shall consider some analogous constructions of di