A mathematician and his mathematical work : selected papers by P Li, Gang Tian, Shiu-Yuen Cheng PDF

By P Li, Gang Tian, Shiu-Yuen Cheng

ISBN-10: 9810223854

ISBN-13: 9789810223854

This quantity is a suite of study papers on nonlinear partial differential equations and comparable components, representing many facets of latest advancements in those components. specifically, the next are incorporated: nonlinear conservation legislation; semilinear elliptic equations, nonlinear hyperbolic equations; nonlinear parabolic equations; singular restrict difficulties; and research of actual and numerical recommendations. vital parts corresponding to numerical research, leisure thought, multiphase thought, kinetic thought, combustion idea, dynamical platforms and quantum box concept also are coated The existence and arithmetic of Shiing-Shen Chern / R.S. Palais and C.-L. Terng -- My Mathematical schooling / S.S. Chern -- A precis of My medical lifestyles and Works / S.S. Chern -- S.S. Chern as Geometer and good friend / A. Weil -- a few Reflections at the Mathematical Contributions of S.S. Chern / P.A. Griffiths -- Shiing-Shen Chern as pal and Mathematician / W.-L. Chow -- Abzahlungen fur Gewebe -- On indispensable Geometry in Klein areas -- an easy Intrinsic facts of the Gauss-Bonnet formulation for Closed Riemannian Manifolds -- at the Curvatura Integra in a Riemannian Manifold -- attribute sessions of Hermitian Manifolds -- Sur une Classe Remarquable de Varietes dans l'espace Projectif a N Dimensions -- A Theorem on Orientable Surfaces in 4-dimensional house / S.S. Chern and E. Spanier -- at the Kinematic formulation within the Euclidean house of N Dimensions -- On a Generalization of Kahler Geometry -- at the overall Curvature of Immersed Manifolds / S.S. Chern and R.K. Lashof

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A paper of Allendoerfer and W~il implied that the existence of local isometric embeddings was enough, thereby settling the case of analytic metrics). These earlier proofs wrote the Generalized Gauss-Bonnet integrand as the volume element times a scalar that was a complicated polynomial in the components of the Riemann tensor. In [25] Chern for the first time wrote the integrand as the Pfatfan of the curvature forms and then provided a simple and elegant intrinsic proof of the theorem along the lines of the above proof for surfaces.

It is cleariy a ring homomorphism, and in recognition of Weil's lemma Chern called it the Weil homomorphism, but it is more commonly referred to as the Chern-Weil homomorphism. For U(n) the ring R" of ad-invariant polynomials on its Lie algebra has an elegant and explicit description that follows easily from the diagonalizability of skew-hermitian operators and the classic classification of symmetric polynomials. Extend the adjoint action of U(n) to the polynomial ring R[t] by letting it act trivially on the new indetern minate t.

Is called the torsion of the connection, and what Chern exploited was the fact that he could in certain cases define "intrinsic" N(G) connections by putting conditions on T. For example, the Levi-Civita connection can be characterized as the unique N(O(n)) connection on N(P) such that T = O. In fact, in [43] Chern showed that if the Lie algebra L( G) satisfied a certain simple algebraic condition ("property C") then it was always possible to define an intrinsic N(G) connection in this way, and he proved that any compact G satisfies property C.

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A mathematician and his mathematical work : selected papers of S.S. Chern by P Li, Gang Tian, Shiu-Yuen Cheng

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