4manifolds

# icons #sadkeanu #藤牌 #inukagmor #stgiles #rioitajai #béarla #la-dy-bug #thigh tie #kitlit

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_What is a Lefschetz pencil?_ by Robert Gompf

Link #pencil #algebraic geometry #dehn twist #max dehn #kirby calculus #robion kirby #solomon lefschetz #manifolds #surgery #topology #mathematics #maths #blowing up #blowup #complex projective plane #projective geometry #singularity #singularities #fibrations #genus #surfaces #excision #4manifolds #bundles #monodromy #cylinder #torus

_What is a Lefschetz pencil?_ by Robert Gompf

Link #pencil #algebraic geometry #dehn twist #max dehn #kirby calculus #robion kirby #solomon lefschetz #manifolds #surgery #topology #mathematics #maths #blowing up #blowup #complex projective plane #projective geometry #singularity #singularities #fibrations #genus #surfaces #excision #4manifolds #bundles #monodromy #cylinder #torus

_What is a Lefschetz pencil?_ by Robert Gompf

Link #pencil #algebraic geometry #dehn twist #max dehn #kirby calculus #robion kirby #solomon lefschetz #manifolds #surgery #topology #mathematics #maths #blowing up #blowup #complex projective plane #projective geometry #singularity #singularities #fibrations #genus #surfaces #excision #4manifolds #bundles #monodromy #cylinder #torus

_What is a Lefschetz pencil?_ by Robert Gompf

Link #pencil #algebraic geometry #dehn twist #max dehn #kirby calculus #robion kirby #solomon lefschetz #manifolds #surgery #topology #mathematics #maths #blowing up #blowup #complex projective plane #projective geometry #singularity #singularities #fibrations #genus #surfaces #excision #4manifolds #bundles #monodromy #cylinder #torus