000 | 00378nam a2200145Ia 4500 | ||
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999 |
_c170381 _d170381 |
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020 | _a3540442375 | ||
040 | _cCUS | ||
082 |
_a511.52 _bSER/T |
||
100 | _aSerre, Jean-Pierre | ||
245 | 0 |
_aTrees/ _cJean-Pierre Serre |
|
260 |
_aNew York: _bSpringer, _c2003. |
||
300 |
_aix, 142 p. : _bill. ; _c25 cm. |
||
440 | _a(Springer monographs in mathematics) | ||
505 | _aCh. I. Trees and Amalgams -- 1. Amalgams -- 1.1. Direct limits -- 1.2. Structure of amalgams -- 1.3. Consequences of the structure theorem -- 1.4. Constructions using amalgams -- 1.5. Examples -- 2. Trees -- 2.1. Graphs -- 2.2. Trees -- 2.3. Subtrees of a graph -- 3. Trees and free groups -- 3.1. Trees of representatives -- 3.2. Graph of a free group -- 3.3. Free actions on a tree -- 3.4. Application: Schreier's theorem -- App. Presentation of a group of homeomorphisms -- 4. Trees and amalgams -- 4.1. The case of two factors -- 4.2. Examples of trees associated with amalgams -- 4.3. Applications -- 4.4. Limit of a tree of groups -- 4.5. Amalgams and fundamental domains (general case) -- 5. Structure of a group acting on a tree -- 5.1. Fundamental group of a graph of groups -- 5.2. Reduced words -- 5.3. Universal covering relative to a graph of groups -- 5.4. Structure theorem -- 5.5. Application: Kurosh's theorem -- 6. Amalgams and fixed points -- 6.1. The fixed point property for groups acting on trees -- 6.2. Consequences of property (FA) -- 6.3. Examples -- 6.4. Fixed points of an automorphism of a tree -- 6.5. Groups with fixed points (auxiliary results) -- 6.6. The case of SL[subscript 3](Z) -- Ch. II. SL[subscript 2] -- 1. The tree of SL[subscript 2] over a local field -- 1.1. The tree -- 1.2. The groups GL(V) and SL(V) -- 1.3. Action of GL(V) on the tree of V; stabilizers -- 1.4. Amalgams -- 1.5. Ihara's theorem -- 1.6. Nagao's theorem -- 1.7. Connection with Tits systems -- 2. Arithmetic subgroups of the groups GL[subscript 2] and SL[subscript 2] over a function field of one variable -- 2.1. Interpretation of the vertices of [Gamma]\X as classes of vector bundles of rank 2 over C -- 2.2. Bundles of rank 1 and decomposable bundles -- 2.3. Structure of [Gamma]\X -- 2.4. Examples -- 2.5. Structure of [Gamma] -- 2.6. Auxiliary results -- 2.7. Structure of [Gamma]: case of a finite field -- 2.8. Homology -- 2.9. Euler-Poincare characteristic. | ||
650 | _aLinear algebraic groups | ||
650 | _aFree groups | ||
650 | _aMathematics | ||
942 | _cWB16 |